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Veichi Electric AC70T Series Manual

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First of all, thank you for using AC70T series crane drives.
VEICHI Electric is committed to producing safe, efficient and reliable hoisting-specific
products. Combined with many years of experience in the hoisting industry, AC70T series
products feature excellent control performance and functions since they integrate special
functions such as brake control, stable hoisting, constant power, zero-speed hovering, anti-
shake luffing, brake torque detection, etc., which are mainly used for driving and controlling
hoisting, slewing and traveling mechanisms in hoisting equipment.
This manual describes how to correctly use AC70T series products, and provides users with
relevant precautions such as install method, parameter setting, operation and fault diagnosis.
In order to use this AC drive correctly, please read this manual carefully before using it. And if
there are any doubts about the contents of this manual, please consult our technical personnel.
VEICHI is always committed to product innovation and technological breakthrough, and
providing the best products and solutions to meet the application needs of hoisting. Content
changes caused by continuous updates and upgrades of products are subject to no further notice.

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Summary of Contents for Veichi Electric AC70T Series

  • Page 1 This manual describes how to correctly use AC70T series products, and provides users with relevant precautions such as install method, parameter setting, operation and fault diagnosis.

  • Page 2: Table Of Contents

    AC70T Series Crane Drive Manual Catalog Catalog 1 General ........................... 1 1.1 Safety Precaution....................1 1.2 Technical Specifications ................... 5 1.3 Product Features ....................7 2 Before Use ..........................8 2.1 Unpacking Inspection ..................8 2.2 Nameplate ......................8 2.3 Technical Data ....................9 2 Product Dimensions ..................
  • Page 3 Catalog AC70T Series Crane Drive Manual 4.9 Analog Input Terminal Characteristics ............35 4.10 Analog Output Terminal Characteristics ............35 5 Specific Functions ........................ 36 5.1 Brake Control ....................36 5.2 Brake Failure Protection ................. 37 5.2.1 Function Description ................37 5.2.2 Notice ......................
  • Page 4 AC70T Series Crane Drive Manual Catalog 6 Parameter List ........................52 6.1 Group F0: Basic Settings ................52 6.2 Group F1: Operation Control ................. 54 6.3 Group F2: Switch Terminal ................58 6.4 Group F3: Analog Terminal ................64 6.5 Group F4: System Parameters ................ 71 6.6 Group F5: Motor Parameters ................

  • Page 6: General

    1 General Thank you for purchasing AC70T series high-performance crane drive designed and manufactured by Suzhou VEICHI Electric Co, Ltd. This manual describes how to use this product for benefits. Please read it carefully before using the product (installation, wiring, operation, maintenance, inspection, etc.).
  • Page 7 AC70T Series Crane Drive Manual General categorized into six sections: general instruction, transportation and storage, installation and wiring, operation, maintenance, and dismantling and disposal. − −...
  • Page 8 General AC70T Series Crane Drive Manual ● General ● This product carries a dangerous voltage and controls a potentially dangerous motion mechanism. Non-compliance with the regulations or failure to operate in accordance with this manual may result in personal injury or death and damage to the product and the associated system.
  • Page 9 ● Maintenance ● Maintenance of this product should be performed only by Suzhou VEICHI Electric Technology Co., Ltd's service department, its authorized service center, or its trained and authorized professionals, who must be well-versed in this manual's safety warnings and instructions.

  • Page 10: Technical Specifications

    General AC70T Series Crane Drive Manual 1.2 Technical Specifications Item Specification Voltage, frequency Three-phase 380V 50Hz/60Hz Voltage: 320V~440V;voltage imbalance rate: <3%; frequency: ±5% Allowable fluctuation Power Input Distortion rate meets IEC61800-2 requirements Power factor ≥0.94 (with DC reactor) AC drive efficiency ≥96%...
  • Page 11 AC70T Series Crane Drive Manual General Frequency setting Set via keyboard numbers, keyboard potentiometer, analog voltage channel terminal VS1, VS2, pulse current terminal AS, communication and multi-channel terminal, combination of main and auxiliary channels Set via voltage terminal VS1, VS2, current terminal AS,...

  • Page 12: Product Features

    General AC70T Series Crane Drive Manual 1.3 Product Features Function Description Upon detecting motor shaft rotation while in standby mode, the AC drive automatically engages zero-speed servo control to Brake Failure Protection maintain the heavy load's current position and sounds an alarm for the operator to lower the hook, thus providing optimal equipment operation safety.

  • Page 13: Before Use

    AC70T Series Crane Drive Manual Before Use 2 Before Use 2.1 Unpacking Inspection When receiving your order, please inspect the exterior packaging for damage, and open it after confirming that it is complete and undamaged, scratches, or dirt (damages caused during transportation are not covered by VEICHI’s warranty).

  • Page 14: Technical Data

    Before Use AC70T Series Crane Drive Manual 2.3 Technical Data Model Motor power Rated input voltage Rated current AC70T-T3-R75-B 0.75kW 2.3A AC70T-T3-1R5-B 1.5kW 3.7A AC70T-T3-2R2-B 2.2kW AC70T-T3-004-B AC70T-T3-5R5-B 5.5kW AC70T-T3-7R5-B 7.5kW AC70T-T3-011-B 11kW AC70T-T3-015-B 15kW AC70T-T3-018-B 18kW AC70T-T3-022-B 22kW AC70T-T3-030-B-2...

  • Page 15: Product Dimensions

    AC70T Series Crane Drive Manual Before Use 2 Product Dimensions Dimensions Hole site Drive model Aperture AC70T-T3-R75-B AC70T-T3-1R5-B 154.5 ф5 AC70T-T3-2R2-B AC70T-T3-004-B 157.5 147.2 ф5.5 AC70T-T3-5R5-B AC70T-T3-7R5-B 167.5 ф7 AC70T-T3-011-B AC70T-T3-015-B AC70T-T3-018-B ф7 AC70T-T3-022-B − −...
  • Page 16 Before Use AC70T Series Crane Drive Manual Mounting aperture 安装孔径 Dimensions Hole site Drive model Aperture AC70T-T3-030-B-2 AC70T-T3-037-B-2 Ф7 AC70T-T3-045-B-2 AC70T-T3-045-B Ф9 AC70T-T3-055-B AC70T-T3-075-B AC70T-T3-090-B ф11 AC70T-T3-110 − −...
  • Page 17 AC70T Series Crane Drive Manual Before Use Dimensions Hole site Apertur Drive model AC70T-T3-132 ф11 AC70T-T3-160 AC70T-T3-185 1060 1023 ф16 AC70T-T3-200 − −...

  • Page 18: Electrical Installation

    Before Use AC70T Series Crane Drive Manual 2.5 Electrical Installation This section describes essential safety measures and requirements to guarantee the product's safe operation, AC drive performance and reliability. ⚫ Precautions ● The AC drive must be reliably grounded during operation to prevent potential injury, fatalities, and ensure reliable equipment function.

  • Page 19: Standard Wiring

    AC70T Series Crane Drive Manual Before Use 2.6 Standard Wiring Note: 1. Ensure the shorting jumper between the P1 and (+) terminal is removed when installing the DC reactor. 2. The multi-function input terminals (X1~X7/PUL) support NPN or PNP transistor signals, while a bias voltage can be from the AC drive's internal power (+24V terminal) or an external supply (PLC terminal).
  • Page 20 Before Use AC70T Series Crane Drive Manual Multi-function terminal wiring ● NPN wiring Figure 2-1: NPN Wiring for DI Signals ● PNP wiring Figure 2-2: PNP Wiring for DI Signals − −...
  • Page 21 AC70T Series Crane Drive Manual Before Use Wiring for DO signals Figure 2-3: Wiring for DO Signals Wiring for AO signals Figure 2-4: Wiring for AO Signals − −...

  • Page 22: Main Circuit Terminals

    Before Use AC70T Series Crane Drive Manual Wiring for pulse input signals Figure 2-5: Wiring for Pulse Input Signals 2.7 Main Circuit Terminals ● Main circuit terminal arrangement and definition Terminal arrangement for main circuit of 22kW and below: Terminal arrangement for main circuit of 30kW~110kW:...

  • Page 23: Control Circuit Terminal

    AC70T Series Crane Drive Manual Before Use Drive output terminal For connecting motor. Grounding terminal, with the grounding resistance < Grounding 10Ω. 2.8 Control Circuit Terminal ● Control circuit terminal arrangement +10V +24V X7/PUL Item Mark Name Description Provide +10V power supply to the external, with max.
  • Page 24 Before Use AC70T Series Crane Drive Manual Current analog 1. Input current: DC 0mA~20mA AS-GND input 2. Input impedance: 500Ω Voltage analog 1. Input voltage: DC 0V~10V VS-GND input 2. Input impedance: 75kΩ Analog Input 1. Range: DC 0V~10V/0mA~20mA, up to DIP Voltage or current switch S2 on the control panel.
  • Page 25 AC70T Series Crane Drive Manual Before Use Use DIP switch S4 to decide the connection of Communication the RS485 communication to a 120 Ω terminal terminal B- resistor. ● Auxiliary terminal output capability Terminal Definition Max. output 10V auxiliary power output, forming a...
  • Page 26 Before Use AC70T Series Crane Drive Manual +24V +24V shorted to PLC PLC receives external power input PLC shorted to COM Disconnect from GND and PE chassis discharge circuit. Connect to GND and PE chassis discharge circuit. − −...

  • Page 27: Basic Keyboard Operation

    AC70T Series Crane Drive Manual Basic Keyboard Operation 3 Basic Keyboard Operation 3.1 Safety Precaution ● Do not perform wiring work with the power supply on, as there is a risk of Danger electric shock; ● Do not operate the AC drive with the casing open as there is a risk of electric shock;...

  • Page 28: Keyboard Layout And Function Description

    Basic Keyboard Operation AC70T Series Crane Drive Manual 3.2 Keyboard Layout and Function Description Mark Definition Description Enter the function menu interface when standby or running; press the key to exit the modification when in the parameter Menu modification status; long press the key (3 second) when standby or running to enter the status monitoring interface directly.

  • Page 29: Keyboard Indicator Description

    AC70T Series Crane Drive Manual Basic Keyboard Operation F4.07 can define the function of the key. As a “reverse key” (REV), it makes the AC drive to operate in reverse direction, and Reverse/ the function indicator of the key is off. As a “Jog” key, it makes the AC drive jog, and the function indicator of the key is on.

  • Page 30: Cross Reference Table

    Basic Keyboard Operation AC70T Series Crane Drive Manual 3.4 Cross Reference Table Table 3-1: Cross Reference Table − −...

  • Page 31: Basic Keyboard Operation

    AC70T Series Crane Drive Manual Basic Keyboard Operation 3.5 Basic Keyboard Operation ● Parameter initialization Set F0.19=1 to initialize the parameters. See the details as below: Hz indicator 9 times 2 times 1 time 1 time Figure 3-1: Parameters Initialization ●...
  • Page 32 Basic Keyboard Operation AC70T Series Crane Drive Manual ● Frequency setting channel There are multiple channels to set frequency, please see those options in Chapter 9 for details. The following is an example by setting F0.03=1 (via keyboard potentiometer): Hz indicator...
  • Page 33 AC70T Series Crane Drive Manual Basic Keyboard Operation ● Monitoring parameter check Given frequency Input voltage Output frequency Motor speed Output current PID setting PID feedback Flash Figure 3-5: Monitoring Parameter Check − −...

  • Page 34: Debugging Guide

    Debugging Guide AC70T Series Crane Drive Manual 4 Debugging Guide 4.1 Unlocking AC70T provides a password protection function, which requires entering the password to unlock before parameter setting. The steps are as follows: 1. Dual-line keyboard unlocking Press the "PRG” menu key to display "CodE" on the keyboard's first line. Use the up and down keys to enter the user password on the second line, then press "SET"...

  • Page 35: Trial Operation Guide

    AC70T Series Crane Drive Manual Debugging Guide 4.2 Trial Operation Guide Connect the drive's main and control circuits and power it on in compliance of safety precautions Set macros based on applications： FF.00=1: Single drive for lifter FF.00=2: Travel mechanism FF.00=3: Rotation mechanism...

  • Page 36: Checklist Before Power-Up

    Debugging Guide AC70T Series Crane Drive Manual 4.3 Checklist Before Power-up Please check the following items before power-up. Item Content Check whether the power supply voltage is correct. Power supply voltage Check whether the R/S/T/N power terminals are wired reliably.

  • Page 37: Auto-Tuning Steps

    AC70T Series Crane Drive Manual Debugging Guide For scenarios requiring mediocre control Rapid static auto-tuning Good F5.20=3 precision 4.5.2 Auto-tuning Steps 1. Ensure high/low voltage wiring is correct and safety protection for the motor or a safe operating environment. 2. Enter the correct F5.01 to F5.06 parameters according to the motor nameplate.

  • Page 38: Start/Stop Command

    Debugging Guide AC70T Series Crane Drive Manual 4.7 Start/Stop Command Code Name Definition 0: Keyboard control F0.02 Command Channel 1: Terminal control 2: RS485 communication control 0: Keyboard control Controlled by RUN and STOP on the panel, it takes effect upon pressing.
  • Page 39 AC70T Series Crane Drive Manual Debugging Guide With FC.00 set to 10.00Hz and the X3 terminal connected, it corresponds to multi-segment speed terminal 1, and now the given frequency is 10.00Hz. With FC.05 set to 20.00Hz and the X4, X5 terminals connected, it corresponds to multi- segment speed terminal 2, 3 respectively, and now the given frequency is 20.00Hz.

  • Page 40: Analog Input Terminal Characteristics

    Debugging Guide AC70T Series Crane Drive Manual 4.9 Analog Input Terminal Characteristics The AC70T series drive supports the 3-channel analog input as AI, VS and AS on the control board respectively, as shown in the following table: Name Characteristics DIP switch to K3: receive 0mA~20mA and 4mA~20mA signal...

  • Page 41: Specific Functions

    AC70T Series Crane Drive Manual Specific Functions 5 Specific Functions 5.1 Brake Control The AC70T series drive has a built-in brake control function, which requires to set one DO to 33 (brake control). The control timing is as follows: 运行 Operation signal 信号...

  • Page 42: Brake Failure Protection

    Specific Functions AC70T Series Crane Drive Manual After completing the braking and the time set in this parameter, the drive will respond to a running FF.03 Command Interval 0.30s command received during braking and shutdown. Range: 0.00s~10.00s Brake Release Current FF.04...

  • Page 43: Relevant Parameters

    AC70T Series Crane Drive Manual Specific Functions 2. As long as the above conditions are met, protection can be activated without limit of times; 3. Without forced air-cooling on the hoist motor, take motor temperature rise into FF.62 [Brake Failure Protection Hold Time] for zero speed operation.

  • Page 44: Relevant Parameters

    Specific Functions AC70T Series Crane Drive Manual 5.3.3 Relevant Parameters Code Name Description Default 82: Brake torque detection F2.00~F2.06 X1~X7 terminal Note: One terminal defined as 82 is enough. 0: OFF FF.55 Brake Torque Detection 1: ON Braking Torque Detection FF.56...

  • Page 45: Stable Hoisting

    AC70T Series Crane Drive Manual Specific Functions DW power Range: 0%~120% FE.A5 coefficient in FVC UP Power FE.A6 Coefficient in SVC DW power FE.A7 coefficient in SVC 5.5 Stable Hoisting During tower crane hoisting, if the AC drive senses the wire rope transitioning from slack to taut, it initiates low-speed hoisting, followed by acceleration once the load stabilizes, to prevent jib "nodding"...

  • Page 46: Anti-Snag Control

    Specific Functions AC70T Series Crane Drive Manual Used for load judgment in stable hoisting Tension FE.90 3.00Hz Frequency Range: 0.00Hz~10.00Hz Max. Frequency FE.91 in Stable Range: 0.00Hz~100.00Hz 100.00Hz Hoisting Tension Holding time of tension frequency operation. FE.92 Frequency 6.000s Range: 0.000s~20.000s...

  • Page 47: Anti-Swing Luffing

    AC70T Series Crane Drive Manual Specific Functions When a heavy load is detected, an alarm or fault is Anti-snag Detection FE.A0 reported after this setting. 2.000s Time Range: 0.000s~20.000s 5.7 Anti-swing Luffing 5.7.1 Function Description Using FVC (closed-loop vector control) (F0.00=4), the hoisting drive sends rope length calculations to the luffing drive via communication.

  • Page 48: Relevant Parameters

    Specific Functions AC70T Series Crane Drive Manual the rope length formula (in meters, two decimals) in the C point above, and input L3 into FE.63. E. Check the hoisting drive's C-08 to see the real-time rope length; if no, rework is needed;...

  • Page 49: Ant-Speed (Slow Positioning)

    Proportional 0.0%~100.0% 20.0% Gain Antspeed FC.53 0.00Hz~50.00Hz 5.00Hz Frequency 5.9 Slewing Control The AC70T series provides two slewing control schemes, with/without eddy current control, as shown in the following table: Name Motor Mode Without eddy control General motor SVC/FVC (recommended)

  • Page 50: With Eddy Control

    Specific Functions AC70T Series Crane Drive Manual See “4.2 Trial Operation Guide”. 2. Relevant Parameters Default Code Name Description Thousand-bits: Eddy-free frequency control FF.36 Slewing Control 1 1101 0: OFF 1: ON Increase when there is rebound during stop. FE.55 Stable Control Gain 8.00...
  • Page 51 AC70T Series Crane Drive Manual Specific Functions 输出频率/Hz Output freq. /Hz 目标频率 Target freq. 50.00Hz 50.00Hz FF.43 3段速输出频率 Segmented Accel./Decel. Switch Freq. 3 F1.25 F1.26 FF.42 加速时间4 减速时间4 Accel. Time 4 Decel. Time 4 2段速输出频率 Segmented Accel./Decel. Switch Freq. 2 F1.23...

  • Page 52: Step 1: Set Eddy Control Mode

    Specific Functions AC70T Series Crane Drive Manual At the same eddy output voltage, higher motor speed results in greater braking force. For stable tower jib operation, it follow the principle that “higher the output frequency, lower the eddy output voltage”. Set the relevant parameters as below.

  • Page 53: Step 3: Adjust Eddy Control

    AC70T Series Crane Drive Manual Specific Functions 5.10.3 Step 3: Adjust Eddy Control Method 1: Overall adjustment via F3.56 [AO1 Gain] or F3.59 [AO2 Gain]; Method 2 or Method 3: Eddy duty cycle control as figure below: 输出频率/Hz Output freq. /Hz FF.47...

  • Page 54: Slewing Flexible Control

    Specific Functions AC70T Series Crane Drive Manual Eddy Holding Time at FF.51 0.0s~3000.0s 60.0s Stop FF.52 Eddy Output Carrier 0.20kHz~4.00kHz 0.20kHz 0: Positive FF.53 Duty Cycle Polarity 1: Negative 0.0%~50.0% Duty Cycle Change FF.54 0.5% Rate at Stop Time unit is 100ms 5.11 Slewing Flexible Control...

  • Page 55: Slewing-Specific Acceleration/Deceleration

    AC70T Series Crane Drive Manual Specific Functions Relevant parameters: Code Name Description Default Ones-bit: Flexible control 0: OFF 1: ON To address tower jib "stuttering" issue, see flexible control description for FF.36 Slewing Control 1 1101 details. Tens-bit: Flexible control accel./decel.
  • Page 56 Specific Functions AC70T Series Crane Drive Manual FB.11 Step Acceleration Time 6 0.00s~30.00s 1.50s FB.12 Acceleration Section 7 FB.10~FB.14 80.0% FB.13 Step Acceleration Time 7 0.00s~30.00s 3.40s FB.14 Acceleration Section 8 FB.12~300.0% 100.0% FB.15 Step Acceleration Time 8 0.00s~30.00s 3.80s FB.16...
  • Page 57 AC70T Series Crane Drive Manual Specific Functions 输出频率 Output freq. /Hz Fb.14 Fb.12 Fb.10 Fb.08 Fb.06 Fb.04 Fb.02 Fb.00 Fb.01 Fb.03 Fb.05 Fb.07 Fb.09 Fb.11 Fb.13 Fb.15 Acceleration Period Schematic 输出频率 Output freq. /Hz Fb.30 Fb.28 Fb.26 Fb.24 Fb.22 Fb.20 Fb.18...

  • Page 59: Parameter List

    AC70T Series Crane Drive Manual Parameter List 6 Parameter List "●": the parameter can be modified when AC drive is operating; "〇": the parameter can't be modified when AC drive is operating; "×": the parameter is read-only and cannot be modified.
  • Page 60 Parameter List AC70T Series Crane Drive Manual F0.09 Upper limit frequency~600.00Hz 0x009 100.00Hz 〇 Max. frequency 0: Via keyboard-given upper limit Upper Limit F0.10 ● 0x00A frequency Frequency Source Set by F0.11 Upper Limit 100.00 F0.11 F0.12~F0.09 ● 0x00B Frequency via...

  • Page 61: Group F1: Operation Control

    AC70T Series Crane Drive Manual Parameter List Initialization 1: Restore the factory default (not include motor parameters) 1: Restore the factory default (include motor parameters) 3: Clear fault records 6.2 Group F1: Operation Control Prop Code Name Description Default Address...
  • Page 62 Parameter List AC70T Series Crane Drive Manual Output freq. 输出频率 启动频率维持时间 Starting freq. holding time 启动频率 预励磁时间 Starting freq. Output freq. Zero-speed torque 时间 零速力矩频率阀值 Time freq. threshold 启动直流制动时间 FWD/REV Starting DC brake time 正反转死区时间 dead-time 正转运行命令 FWD Command 反转运行命令...
  • Page 63 AC70T Series Crane Drive Manual Parameter List In deceleration stop mode, the drive blocks the output when the Stop Detection ● F1.15 output frequency is lower than 0.50Hz 0x10F Frequency this value, then stops. Range: 0.00Hz~50.00Hz Ones-bit: Time reference 0: Max. frequency 1: Fixed frequency of 50.00Hz...
  • Page 64 Parameter List AC70T Series Crane Drive Manual 正转运行 反转运行 F1.18 F1.19 F1.17 F1.20 输出频率 Output freq. F1.17 F1.20 F1.19 F1.18 ● F1.21 Acceleration Time 2 0.01s~650.00s 20.00s 0x115 ● F1.22 Deceleration Time 2 0.01s~650.00s 20.00s 0x116 ● F1.23 Acceleration Time 3 0.01s~650.00s...

  • Page 65: Group F2: Switch Terminal

    AC70T Series Crane Drive Manual Parameter List If the AC drive was running before power loss, it will auto- restart in "By speed tracking" mode after power-on and F1.36 [Power-Down Restart Waiting Time]. During the wait, it doesn’t accept operation command;...
  • Page 66 Parameter List AC70T Series Crane Drive Manual 9: External fault input 10~12: Reserved 13: Channel A to Channel B Input 14: Combined frequency channel to A 〇 F2.03 Terminal 4 0x203 15: Combined frequency channel to B (X4) 16: Multi-segment speed terminal 1...
  • Page 67 AC70T Series Crane Drive Manual Parameter List It is used to set the polarity of the input X1~X4 terminal. Terminal ● F2.08 0: ON; 1: OFF 0000 0x208 Characteri Ones-bit: X1 Tens-bit: X2 stics Hundreds-bit: X3 Thousands-bit: X4 It is used to set the polarity of the input terminal.
  • Page 68 Parameter List AC70T Series Crane Drive Manual X6 ON ● F2.20 Detection 0.010s 0x214 Delay X6 OFF ● F2.21 Detection 0.010s 0x215 Delay X7 ON ● F2.22 Detection 0.010s 0x216 Delay X7 OFF ● F2.23 Detection 0.010s 0x217 Delay F2.24~F2.25...
  • Page 69 AC70T Series Crane Drive Manual Parameter List 0: OFF 1: ON Ones-bit: Terminal start protection in case of abnormal exit Tens-bit: JOG terminal start protection in case of abnormal exit Hundreds-bit: Start protection when command channel is switched to terminal Thousands-bit: Reserved F2.28~F2.43...
  • Page 70 Parameter List AC70T Series Crane Drive Manual Insufficient Brake torque error detection 37: Slewing-specific brake control Y ON ● F2.48 Delay 0.010s 0x230 Time Timing begins when the corresponding Relay1 controlled output terminal switches from ● F2.49 ON Delay OFF to ON, and an ON status is output only 0.010s...

  • Page 71: Group F3: Analog Terminal

    AC70T Series Crane Drive Manual Parameter List Y OFF ● F2.56 Delay 0.010s 0x238 Time (TA1/TB1 -TC1) Relay1 Timing begins when the corresponding ● F2.57 0.010s 0x239 Output controlled output terminal switches from ON to OFF, and an OFF status is output Delay only when the timing meets the set value.
  • Page 72 Parameter List AC70T Series Crane Drive Manual Define the size of the filter applied to the AI (VS) signal to remove interference signals. The longer the filter time, the stronger the anti-interference ability, but ● F3.04 VS Filter Time 0.010s 0x304 the response becomes slower;...
  • Page 73 AC70T Series Crane Drive Manual Parameter List AI(AS) Lower F3.17 0.00% ● 0x311 0.00%~100.00% Limit Percentage AI(AS) Upper 20.00 F3.18 0.00mA~20.00mA ● 0x312 Limit AI(AS) Upper F3.19 0.00%~100.00% 100.00% ● 0x313 Limit Percentage VS Terminal F3.20 See terminal functions. 0x314 〇...
  • Page 74 Parameter List AC70T Series Crane Drive Manual Curve 1 Inflection F3.34 ● Point1 Input 0.00V~10.00V 3.00V 0x322 Voltage Curve 1 Inflection F3.35 ● 0.00%~100.00% 30.00% 0x323 Point1 Percentage Curve 1 Inflection F3.36 ● Point2 Input 0.00V~10.00V 6.00V 0x324 Voltage Curve 1 Inflection F3.37...
  • Page 75 AC70T Series Crane Drive Manual Parameter List Reserved F3.48~F3.52 Ones-bit: AO1 0: 0V~10V 1: 4.00mA~20.00mA 2: 0.00mA~20.00mA Tens-bit: AO2 0: 0V~10V 1: 4.00mA~20.00mA 2: 0.00mA~20.00mA AO Signal 3: FM frequency pulse output F3.53 0040 ● 0x335 Selection 4: PWM frequency pulse output...
  • Page 76 Parameter List AC70T Series Crane Drive Manual Note: After setting the output mode, set the ON/OFF status of the control board's switches J1, J2, and J3 as follows: 1. For frequency pulse output (tens-bit set to 3 or 4), switch to J1;...
  • Page 77 AC70T Series Crane Drive Manual Parameter List F3.61 0.010s ● 0x33D AO2 Filter 0.000s~6.000s AO2 FM F3.62 0.20kHz ● 0x33E Frequency Lower 0.00kHz~100.00kHz Limit AO2 FM 50.00 F3.63 ● 0x33F Frequency Upper 0.00kHz~100.00kHz Limit Reserved F3.64~F3.79 − −...

  • Page 78: Group F4: System Parameters

    Parameter List AC70T Series Crane Drive Manual 6.5 Group F4: System Parameters Prop Code Name Description Default Address erty 0: Lock OFF 1: Parameter locked Parameter modification locked 2: Parameter and key locked (except FWD/STOP/JOG) Parameter modification locked, as well as all keys on the keyboard except FWD/STOP/JOG/PRG.
  • Page 79 AC70T Series Crane Drive Manual Parameter List Range: 0~9999 F4.04 Reserved 0: OFF 1: AC drive parameters are transmitted to the keyboard and saved 2: parameters saved in keyboard are transmitted to the AC drive Note: 1. When AC drive is in operation...
  • Page 80 Parameter List AC70T Series Crane Drive Manual parameter copying operation needs to be resumed by pressing the PRG key to exit the the interface that displays E.CPE and return to the monitoring interface. F4.06 Reserved Select the function of REV/JOG.
  • Page 81 AC70T Series Crane Drive Manual Parameter List Lower Limit Percentage Keyboard F4.12 0.00V~5.00V 4.50V ● Potentiometer 0x40C Upper Limit Keyboard Potentiometer F4.13 0.00%~100.00% 100.00% ● 0x40D Upper Limit Percentage 1st-line Keyboard In operation status: Monitoring ● F4.14 Display in parameters are cyclically...
  • Page 82 Parameter List AC70T Series Crane Drive Manual 2nd-line Keyboard ● F4.19 Display in 1004 0x413 Operation 2nd-line Keyboard ● F4.20 1100 0x414 Display at Stop 2nd-line Keyboard ● F4.21 1100 0x415 Display at Stop Ones-bit: Output frequency display selection 0: Target frequency (of the...
  • Page 83 AC70T Series Crane Drive Manual Parameter List Display coefficient for keyboard RPM Display monitoring code C-05 ● F4.24 100.0% 0x418 Coefficient [Mechanical Speed]. Range: 0.0%~500.0% Display coefficient used to Power Display correct the keyboard monitoring ● F4.25 100.0% 0x419 Coefficient code C-10 [Output Power].
  • Page 84 Parameter List AC70T Series Crane Drive Manual current waveform is more ideal and the motor noise is low. It is ideal for scenarios that require silence. Despite this, the switching loss of key components is up, which causes increased heat...

  • Page 85: Group F5: Motor Parameters

    AC70T Series Crane Drive Manual Parameter List according to the output frequency, and this function can improve the low-frequency performance of AC drive and the mute effect of high frequency. Hundreds-bit: Random PWM 0: OFF Motor Fixed Noise Frequency 1: ON...
  • Page 86 Parameter List AC70T Series Crane Drive Manual AM No-load Up to ※ F5.07 0.1A~3000.0A 0x507 Current model AM Stator Up to ※ F5.08 0.01%~50.00% 0x508 Resistance model AM Rotor Up to ※ F5.09 0.01%~50.00% 0x509 Resistance model AM Stator Leakage Up to ※...

  • Page 87: Group F6: Motor Vector Control

    AC70T Series Crane Drive Manual Parameter List encoder is essential, and the encoder must have sufficient lines in synchronous motor control. Range: 1~32767 If the motor encoder feedback interference is large, the filter time of the speed measurement can be appropriately increased.
  • Page 88 Parameter List AC70T Series Crane Drive Manual however, an excessively short integral time may lead to system overshoot and a tendency toward ● F6.02 ASR Filter Time 1 0.0ms 0x602 oscillation. Start by setting the proportional gain high enough to avoid oscillation;...
  • Page 89 AC70T Series Crane Drive Manual Parameter List switching frequency 1 [F6.03]. The second group of ASR (speed loop) parameters is valid when the output frequency is below the switching frequency 2 [F6.07]. When the output frequency is between switching frequency 1 [F6.03] and switching frequency 2...
  • Page 90 Parameter List AC70T Series Crane Drive Manual corresponds to the rated torque of the motor, valid for AM, PM in under SVC and FVC modes. The Generation Mode motor torque output is also limited ● F6.09 180.0% 0x609 Torque Limit by the AC drive output current limit point [FA.01] and the output...
  • Page 91 AC70T Series Crane Drive Manual Parameter List adjust the compensation intensity, and the compensation clipping is used to limit the compensation amplitude, relative to the drive maximum output frequency and is effective below the compensation range frequency, relative to the drive maximum output frequency.
  • Page 92 Parameter List AC70T Series Crane Drive Manual the value can be appropriately increased when heat dissipation of the motor is good. Range: 0.0%~500.0% For AM in vector control, the Vector Control ECO 〇 F6.24 0x618 function through Function analysis torque output, ●...

  • Page 93: Group F8: Motor Svc1 Parameters

    AC70T Series Crane Drive Manual Parameter List current and is valid for PM. But an irreversible demagnetization of the motor will occur if the flux weakening current is too large. Normally, this will not happen if the field-weakening current is within the rated range.
  • Page 94 Parameter List AC70T Series Crane Drive Manual V1 (Self-set 〇 F8.01 4.5% 0x801 Voltage) Customize the V/F curve using F1 (Self-set F8.02 0.0% 〇 0x802 [F8.01~F8.10]. If FF.02's Frequency) hundreds-bit is set to 1, it V2 (Self-set 〇 F8.03 5.6%...
  • Page 95 AC70T Series Crane Drive Manual Parameter List Output volt. 输出电压 Output freq. 输出频率 The output voltage regulation coefficient of the AC drive. This Output Voltage function is used to adjust the 〇 F8.11 100.0% 0x80B Percentage output voltage of the AC drive for different V/F characteristics.
  • Page 96 Parameter List AC70T Series Crane Drive Manual Note: When parameter [F8.00] is set to "11" (customized V/F curve), the torque boost set in [F8.12] is invalid, and AC drive runs according to the customized V/F curve. Range: F8.12: 0.0%~30.0% F8.13: 0.0%~100.0% −...
  • Page 97 AC70T Series Crane Drive Manual Parameter List Torque Boost Schematic 输出电压 输出电压 Output volt. Output volt. 电机额定 电机额定 Motor Motor 电压 电压 rated volt. rated volt. 转矩提升 Torque 转矩提升 Torque boost volt. 电压 电压 boost volt. 输出频率 输出频率 Output freq.
  • Page 98 Parameter List AC70T Series Crane Drive Manual F8.15: 0.0%~300.0% F8.16: 0.000s~6.000s − −...
  • Page 99 AC70T Series Crane Drive Manual Parameter List Slip Compensation Schematic 电机转速 Motor speed 输出电流 Output current 150% 100% Oscillation ● F8.17 0.0%~900.0% 100.0% 0x811 Suppression Gain Oscillation F8.18 Suppression Filter 0.0~100.0 0x812 Coefficient Automatic ECO 0: OFF F8.19 〇 0x813...

  • Page 100: Group Fa: Protection And Fault Parameters

    Parameter List AC70T Series Crane Drive Manual Reverse Operation frequency). Set frequencies in the F8.27 0x81B 〇 V2 (Self-set V/F curve to correspond to 5.6% Voltage) voltages V1-V5. group parameter settings must satisfy the Reverse Operation F8.28 0x81C following conditions: 〇...
  • Page 101 AC70T Series Crane Drive Manual Parameter List function prevents fault tripping by capping the load current to a predetermined point by real-time monitoring on load current in operation, ideal for loads with Overcurrent ● FA.00 large inertia or significant changes.
  • Page 102 Parameter List AC70T Series Crane Drive Manual Tens-bit: protection interference When this function is on, the AC drive will intelligently diagnose the E.OC alarm, exclude the interference, and only alarm the real fault signal. This function may delay the alarm time, so please use it with caution.
  • Page 103 AC70T Series Crane Drive Manual Parameter List exceeds the value set in FA.07 during deceleration, so as to ensure that the AC drive does not trip the over-voltage protection due to the excessive bus voltage. Select whether to enable the voltage suppression function when the AC drive accelerates.
  • Page 104 Parameter List AC70T Series Crane Drive Manual 母线电压 Bus voltage Overvoltage 过压抑制点 suppression point Time 时间 输出频率 Output frequency 时间 Time Bus Undervoltage when In AC drive operation, if the FA.09 〇 0xA09 Suppression bus voltage reaches or lowers than...
  • Page 105 AC70T Series Crane Drive Manual Parameter List be appropriately lowered to ensure that the AC drive works normally. Note: The output torque of the motor will drop when the grid voltage is too low. For constant power loads and constant torque...
  • Page 106 Parameter List AC70T Series Crane Drive Manual function of the AC drive will be invalid. In order to effectively protect the motors, please install a thermal protection relay at the inlet end of each motor. Range: 0.0%~250.0% Overload Protection Curve Schematic Figure 保护时间...
  • Page 107 AC70T Series Crane Drive Manual Parameter List 1: report error Load detection Motor output current serves as the 〇 FA.18 130.0% 0xA12 warning1 load warning threshold, with 100.0% equivalent to the rated Load detection 〇 FA.19 5.0s 0xA13 motor current. Compare it against warning time1 threshold [FA.18/FA.20] within...
  • Page 108 Parameter List AC70T Series Crane Drive Manual FA.25: 0.0s~60.0s Ones-bit: Detection selection 0: Detection off 1: Detect only at constant speed 2: Detection on Overspeed Tens-bit: Alarm selection 0002 〇 0xA1A FA.26 0: Report error Protection Action 1: Report a warning and continue...
  • Page 109 AC70T Series Crane Drive Manual Parameter List FA.30/FA.32 Range: 0~50 FA.33~FA.36 Reserved Failure Self- Failure self-recovery times: FA.37 〇 Recovery Times 0: OFF Automatic reset function is off, and it can only be reset manually. 1~5: ON The function is on, and 1~5 is the...
  • Page 110 Parameter List AC70T Series Crane Drive Manual Failure self-recovery interval: this parameter represents the wait time between an AC drive failure and each subsequent reset. Note: 1. This function is only valid for faults such as overload, overcurrent, system abnormality,...
  • Page 111 AC70T Series Crane Drive Manual Parameter List 0: Stop Acceleration 2: Deceleration 3: Constant speed Hundreds-bit: Reserved Thousands-bit: Reserved Input Terminal X See the input terminal status × FA.47 0xA2F Status during Fault figure Output Terminal See the output terminal status ×...

  • Page 112: Group Fb: Step Acceleration/Deceleration

    Parameter List AC70T Series Crane Drive Manual 6.10 Group FB: Step Acceleration/Deceleration Prop Code Name Description Default Address erty Acceleration ● FB.00 0.1%~FB.02 10.0% 0xB00 Section 1 Step Acceleration ● FB.01 0.00s~30.00s 0.50s 0xB01 Time 1 Acceleration ● FB.02 FB.00~FB.04 20.0%...

  • Page 113: Group Fc: Multi-Segment Speed

    AC70T Series Crane Drive Manual Parameter List Step Deceleration ● FB.19 0.00s~30.00s 2.00s 0xB13 Time 2 Deceleration ● FB.20 FB.18~FB.22 30.0% 0xB14 Section 3 Step Deceleration ● FB.21 0.00s~30.00s 1.50s 0xB15 Time 3 Deceleration ● FB.22 FB.20~FB.24 40.0% 0xB16 Section 4 Step Deceleration FB.23...

  • Page 114: Group Fd: Communication Control

    Parameter List AC70T Series Crane Drive Manual PLC Multi- ● FC.06 0.00Hz~600.00Hz 60.00Hz 0xC06 Segment Speed 7 PLC Multi- ● FC.07 0.00Hz~600.00Hz 20.00Hz 0xC07 Segment Speed 8 PLC Multi- ● FC.08 0.00Hz~600.00Hz 10.00Hz 0xC08 Segment Speed 9 PLC Multi- ●...
  • Page 115 AC70T Series Crane Drive Manual Parameter List selecting a drive to be a master or slave. Ones-bit: Modbus communication 0: Slave The drive acts as a slave, and the address determined [FD.01]. At this time, the drive receives the command from the...
  • Page 116 Parameter List AC70T Series Crane Drive Manual Ones-bit: Modbus communication 0: 1200 bps 1: 2400 bps 2: 4800 bps 3: 9600 bps 4: 19200 bps 5: 38400 bps Tens-bit: CAN communication Communication 0: 20K FD.02 0005 0xD02 〇 Baud Rate...
  • Page 117 AC70T Series Crane Drive Manual Parameter List This parameter defines the interval time between the end of data reception and the end of sending response data to the Modbus Response FD.05 host computer when the AC 0xD05 ● Delay drive is used as a Modbus communication slave.
  • Page 118 Parameter List AC70T Series Crane Drive Manual After the communication given command set by the AC drive has exceeded the duration set by [FD.06] and the next frame command is still not received or there other communication command, the AC drive stops according to the stopping mode.

  • Page 119: Group Fe: Crane Function Parameters

    AC70T Series Crane Drive Manual Parameter List 6.13: Group FE: Crane Function Parameters Prop Code Name Description Default Address erty Low Speed Gear ● 0xE00 FE.00 0.00Hz~50.00Hz 15.00Hz Operation High Speed Gear ● 0xE01 FE.01 0.00Hz~50.00Hz 50.00Hz Frequency Operation Control Box ●...
  • Page 120 Parameter List AC70T Series Crane Drive Manual 1: ON FE.17 Reserved 0xE12 〇 FE.18 Power-on Voice 0~1000 Reserved FE.19~FE.34 0: OFF 0xE23 ● FE.35 Cyclic Test Mode 1: ON Test Cumulative 0xE24 ● FE.36 0.0h~48.0h 4.0h Runtime 0xE25 ● FE.37 Test Run Cycle 0.0s~600.0s...
  • Page 121 AC70T Series Crane Drive Manual Parameter List during stop. Range: 0.00~50.00 Stable Control FE.56 0.00Hz~20.00Hz 10.00Hz 0xE38 ● Frequency Limit Increase when there is rebound during stop. Keep at or below 1.00 Stop Frequency FE.57 0.50Hz 0xE39 ● Hz to prevent issues with long jog Base distance.
  • Page 122 Parameter List AC70T Series Crane Drive Manual be performed with the rope length obtained from the hoisting drive. 1: ON For ON, the anti-swing control will be performed using the rope length set in FE.68. If the rope length is known, check the anti- swing performance here.
  • Page 123 AC70T Series Crane Drive Manual Parameter List Tens-bit: Anti-snag mode 0: OFF 1: Report a fault [E.059] 2: Alarm and continue running [A.079] Hundreds-bit: Reversed Thousands-bit: Constant power mode 0: OFF 1: ON This code computes the load when the target frequency exceeds it, so...
  • Page 124 Parameter List AC70T Series Crane Drive Manual FE.94~FE.97 Reserved Anti-snag Torque FE.98 0.0%~100.0% 20.0% 0xE62 ● Increase Anti-snag Torque FE.99 0.0%~100.0% 1.5% 0xE63 ● Change Rate Threshold Anti-snag Detection FE.A0 0.000s~20.000s 2.000s 0xE64 ● Time UP Hoisting Power FE.A1 0.0%~150.0% 90.0%...

  • Page 125: Group Ff: Crane-Specific Parameter Group 2

    AC70T Series Crane Drive Manual Parameter List 6.14 Group FF: Crane-Specific Parameter Group 2 Prop Code Name Description Default Address erty 0: Reserved 1: Single drive for lifter 2: Travel mechanism ○ FF.00 Application Type 3: Rotation mechanism 0xF00 4: Lifting integrated machine...
  • Page 126 Parameter List AC70T Series Crane Drive Manual 0: OFF REV is allowed during operation. 1: ON REV is allowed during operation. Tens-bit: Zero-crossing frequency jump 0: OFF 1: ON Switching from forward to reverse jumps the frequency from forward FF.05 to reverse FF.05 and vice versa.
  • Page 127 AC70T Series Crane Drive Manual Parameter List Forward Brake FF.06 0.00Hz~10.00Hz 2.00Hz 0xF06 ○ Release Frequency Forward Brake FF.07 0.00Hz~10.00Hz 2.00Hz 0xF07 ○ Apply Frequency Reverse Brake FF.08 0.00Hz~10.00Hz 2.00Hz 0xF08 ○ Release Frequency Reverse Brake FF.09 0.00Hz~10.00Hz 2.00Hz 0xF09 ○...
  • Page 128 Parameter List AC70T Series Crane Drive Manual Tens-bit: Independent modification for motor 0: OFF 1: ON FF.21~FF.24 Reserved Output While the drive runs, the output FF.25 0xF19 ○ Abnormality current is monitored. If it falls Protection below [FF.26] (100% being the...
  • Page 129 AC70T Series Crane Drive Manual Parameter List 0: OFF 1: ON To address tower jib "stuttering" issue, flexible control description for details. Tens-bit: Flexible control accel./decel. time 0: OFF 1: ON To address tower jib "stuttering" issue, flexible control description for details.
  • Page 130 Parameter List AC70T Series Crane Drive Manual FF.44 Reserved FF.45 Eddy Frequency 1 0.00Hz~Max. frequency 20.00Hz 0xF2D ● FF.46 Eddy Frequency 2 0.00Hz~Max. frequency 40.00Hz 0xF2E ● FF.47 Eddy Frequency 3 0.00Hz~Max. frequency 40.00Hz 0xF2F ● Zero-Speed Duty FF.48 0.0%~100.0% 0.0%...
  • Page 131 AC70T Series Crane Drive Manual Parameter List Brake Failure UP FF.64 0.00Hz~100.00Hz 0.00Hz 0xF40 ● Frequency Limit Brake Failure FF.65 0.00Hz~100.00Hz 50.00Hz 0xF41 ● Downward Frequency Limit ● FF.66 0.0%~200.0% 15.0% 0xF42 Reserved ● FF.67 0.0%~200.0% 15.0% 0xF43 Reserved ●...
  • Page 132 Parameter List AC70T Series Crane Drive Manual FF.79 Reserved 0.0%~200.0% 50.0% 0xF4F ● Post-delay of FF.80 0ms~60000ms 1000ms 0xF50 Slewing Brake ○ Apply Bus Voltage Filter FF.81 0xF51 ● Depth Lifting FF.82 0.0%~90.0% 72.0% 0xF52 ● Undervoltage Point Buffer Resistor FF.83...
  • Page 133 AC70T Series Crane Drive Manual Parameter List REV Gear Torque FF.96 0.0%~200.0% 80.0% 0xF60 ● Gain If REV Gear for Deceleration is REV Gear for ON (FF.87 hundreds-bit=1), Actual FF.97 70.0% 0xF61 ● Deceleration decel. time=FF.97*Original decel. Coefficient time. Range: 0.0%~100.0% 0xF62 FF.98...

  • Page 134: Terminal Function

    Terminal Function Selection AC70T Series Crane Drive Manual 7 Terminal Function Description Description Description Accel./decel. time No functions Forward operation off selection terminal 1 Forward Accel./decel. time Reverse operation off operation selection terminal 2 Reverse Acceleration/ deceleration 55~79 Reserved operation...
  • Page 135 AC70T Series Crane Drive Manual Terminal Function Selection Multi-segment Command channel to 16~19 Brake feedback speed terminal expansion card 20~31 Operation off Reserved Description Description Description Zero-speed operation in Slewing-specific brake No output progress control Drive in 13~23 Reserved 38~40...
  • Page 136 Terminal Function Selection AC70T Series Crane Drive Manual Given Insufficient brake torque frequency error detection reached − −...

  • Page 137: Monitoring Parameter

    AC70T Series Crane Drive Manual Monitoring Parameter 8 Monitoring Parameter Enter Parameter group "C” by pressing PRG key for more than 2s to view the current status of the AC drive. Code Name Definition Address C-00 Given Frequency 0.01Hz 2100H...
  • Page 138 Monitoring Parameter AC70T Series Crane Drive Manual C-34 Reserved 2122H C-35 Reserved 2123H C-36 Fault Alarm 2124H Cumulative Power C-37 1~9999 2125H Consumption (Low) Cumulative Power C-38 1~9999 2126H Consumption (High) C-39 Power Factor Angle 2127H Input Terminal ON/OFF Status: Note: C-30 monitoring extended input terminal D0~D5 wiring diagram is the same as this, but only shows that the first six bits are valid.

  • Page 139: Troubleshooting

    AC70T Series Crane Drive Manual Troubleshooting 9 Troubleshooting This chapter details AC drive faults, alarms, errors in operation, display, and solutions, as well as minor problems due to AC drive and motor malfunctions and their remedies. It also includes a debugging guide for the AC drive during trial operation.
  • Page 140 Troubleshooting AC70T Series Crane Drive Manual ● Check the grid voltage; Overvoltage ● Supply voltage fluctuation is ● Wait for the motor to stop above limit; completely before restarting, then Acceleration ● Start a running motor; set [F1.00] to 1 or 2.
  • Page 141 AC70T Series Crane Drive Manual Troubleshooting ● The general-purpose motor runs at low speed for a long time. ● Choose a drive with matching ● Load is too large; capacity; ● Acceleration time is set too ● Increase the acceleration time short;...
  • Page 142 Troubleshooting AC70T Series Crane Drive Manual ● Check motor connection; ● Motor detection timeout; ● Detect after the motor stops ● Start static detection during completely; Motor motor operation; ● Detect after the motor stops Detection ● Motor and drive capacities completely;...
  • Page 143 AC70T Series Crane Drive Manual Troubleshooting ● Communication timeout Expansion ● Check the connector and between the expansion card card reconnect it; E.ECF and drive. connection ● Choose the specified ● Mismatched expansion card abnormality expansion card. and drive. PG Card ●...
  • Page 144 Troubleshooting AC70T Series Crane Drive Manual ● Seek support from the CPU Timeout ● CPU timer timeout. manufacturer. PG Card AB ● Encoder phases A and B are ● Check the wiring between Phase E.042 Disconnectio disconnected. encoder and PG card.

  • Page 145: Fault Alarm

    AC70T Series Crane Drive Manual Troubleshooting 9.3 Fault Alarm Display Code Name A.072 Agent GPRS Lockout Alarm A.073 Non-agent GPRS Lockout Alarm A.074 485 Communication Alarm A.075 PG Card AB Phase Disconnection A.076 PG Card B-Phase Disconnection A.077 PG Card A Phase Disconnection A.078...

  • Page 146: Accessory Selection

    Accessory Selection AC70T Series Crane Drive Manual 10 Accessory Selection 10.1 Braking Resistor Selection For braking resistor selection, it requires considering the motor-generated power, influenced by factors like inertia, deceleration time, and potential energy load, as well as customers’ specific needs. Higher system inertia, shorter deceleration times, and more frequent braking necessitate a braking resistor with higher power and lower resistance.
  • Page 147 AC70T Series Crane Drive Manual Accessory Selection AC70T-T3-030-B Built-in ≥15kW ≥6kW ≥15Ω AC70T-T3-037-B Built-in ≥19kW ≥7.4kW ≥12Ω AC70T-T3-045-B Built-in ≥23kW ≥9kW ≥10Ω AC70T-T3-055-B 110A Built-in ≥28kW ≥11kW ≥8Ω AC70T-T3-075-B 150A Built-in ≥38kW ≥15kW ≥6Ω AC70T-T3-090-B 180A Built-in ≥23kW ≥9kW ≥12Ω...

  • Page 148: Pg Card Selection

    2. PG Card Selection and Classification The AC200PG01/02 feedback card, mainly used in the QT series and AC70T series crane drives, offers motor speed and direction feedback in FVC mode, enhancing functions like lifting mechanism load slippage prevention.
  • Page 149 AC70T Series Crane Drive Manual Accessory Selection Choose the PG card output signal receiving device based on actual needs: OC output for PLC monitoring equipment, and differential output for specialized, interference-resistant applications. Note: The recommended model for incremental encoder PG card is PG01-ABZ-05-C1, please refer to the ordering notice for other products.
  • Page 150 Accessory Selection AC70T Series Crane Drive Manual ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ Main signal terminal function description Definition Name Function ① Grounding +5V output power supply (for encoder) ② Output signal power supply reference ③...
  • Page 151 AC70T Series Crane Drive Manual Accessory Selection Terminal function selection description Function Position Illustration Description fo=fi fo=fi/2 fo=fi/4 PG card signal frequency division fo=fi/6 coefficient selection terminal fo=fi/28 fo=fi/30 − −...
  • Page 152 Accessory Selection AC70T Series Crane Drive Manual 5. Installation and Dimensions ⚫ Installation schematic ⚫ Installation dimensions − −...
  • Page 153 AC70T Series Crane Drive Manual Accessory Selection 6. Electrical Connection and Use Guide Electrical connection diagram ⚫ Integrated Wiring Diagram L1 L2 L3 AC200PG02 A+ A- B+ B- Z+ Z- Monitoring 监控设备 equipment Integrated wiring diagram ⚫ Wiring for application...
  • Page 154 Accessory Selection AC70T Series Crane Drive Manual Use Guide A. Install the PG card according to the “Installation schematic”; B. Connect the PG card to the encoder according to “Electrical connection diagram”; C. Set the drive related parameters according to the actual use. The following parameters are...
  • Page 155 AC70T Series Crane Drive Manual Accessory Selection set according to the sensor specifications. Range: 1~10000 PG Disconnection Range: FF.71 50ms ○ 0xF47 Detection Time 10ms~3000ms Ones-bit: A/B 0xF48 disconnection detection 0: OFF 1: ON PG Disconnection Tens-bit: Z disconnection FF.72 0001 ○...

  • Page 156: Appendix I: Rs485 Communication

    RS232/RS485 converter. 3. Modbus protocol defines the content and format of asynchronous transmission in serial communication, which can be divided into RUT and ASCII mode. And the AC70T series is in RTU (Remote Terminal Unit) mode. ● Communication frame structure The format of communication frame is shown below: Byte components: start bit, 8 data bits, parity bit and stop bit.
  • Page 157 RS485 Communication Appendix I 0~247 (0 is the broadcast address) 03H: Read slave parameters Command code 06H: Write slave parameters 08H: Circuit self-detection Parameter address, number of parameters, parameter value, Data field etc. CRC CHK low byte Check value: 16-bit CRC value CRC CHK high byte End of the frame Transmission time for 3.5 bytes...
  • Page 158 Appendix I RS485 Communication CRC CHK high byte Transmission time for 3.5 bytes RTU slave response (normal) START Transmission time for 3.5 bytes Slave address Command code Byte count low position Data address 2100H high position Data address 2100H low position Data address 2101H high position Data address 2101H low position Data address 2102H high position...
  • Page 159 RS485 Communication Appendix I Command code Write data address high position Write data address low position Data content high byte Data content low byte CRC CHK low byte CRC CHK high byte Transmission time for 3.5 bytes RTU slave response (normal) START Transmission time for 3.5 bytes Slave address...
  • Page 160 Appendix I RS485 Communication START Transmission time for 3.5 bytes Slave address Command code Check code high byte Check code low byte Data high byte Data low byte CRC CHK low byte CRC CHK high byte Transmission time for 3.5 bytes RTU slave response (normal) START Transmission time for 3.5 bytes...
  • Page 161 RS485 Communication Appendix I 1. Parity Check Users can configure controllers for odd or even parity check, or for no parity check. This will determine how the parity bit is set in each character. If either even or odd parity is specified, the quantity of “1 “ bits will be counted in the data portion of each character (7 data bits for ASCII mode, or 8 for RTU).
  • Page 162 This section describes the communication data used to control the operation, status, and parameter setting of the AC drive. A. AC70T Series Parameter Address Definition The AC drive function parameter serial number is used as the register address, which is divided into two parts: the high byte and the low byte.
  • Page 163 RS485 Communication Appendix I 0x1000 (stored in EEPROM) 0x0100 (not stored in EEPROM) F1 motion control parameters 0x1100 (stored in EEPROM) 0x0200 (not stored in EEPROM) F2 switch terminal parameters 0x1200 (stored in EEPROM) 0x0300 (not stored in EEPROM) F3 analog terminal parameters 0x1300 (stored in EEPROM) 0x0400 (not stored in EEPROM) F4 keyboard parameters...
  • Page 164 Appendix I RS485 Communication Note: There is a possibility of frequent rewriting of parameter values for communication. And the service life of EEPROM can be reduced due to excessive write operations. Users do not need to save specific function codes in communication mode; adjusting the values in the on-chip RAM is adequate for their requirements.
  • Page 165 RS485 Communication Appendix I Communication 0x3009 or 0~1000 corresponds to 0.0%~100.0% given PID feedback 0x2009 Communication 0x300A or 0~Max. Tension [F9.04] given tension 0x200A Communication 0x300B or 0~Max. roll diameter [F9.12] given roll diameter 0x200B Communication 0x300C or 0~Max. linear speed [F9.26] given linear speed 0x200C Communication...

  • Page 166: Appendix Ii: Emc Compliance

    Appendix II AC70T Series Crane Drive Manual Appendix II: EMC Compliance The EMC product standard (EN 61800-3:2004) illustrates EMC requirements for AC drives. Environment Classification: First Environment: Domestic premises. This includes applications directly connected without intermediate transformers to a low-voltage power supply network for domestic purposes.
  • Page 167 AC70T Series Crane Drive Manual Appendix II 2. Select the motor and control cable according to the instructions in this manual. 3. Install the drive according to the method described in this manual. C3 drive cannot be used in a domestic low-voltage public grid. Otherwise, it will produce radio frequency electromagnetic interference.

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