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Weq CTW900 User Manual

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AC/DC Converter
CTW900
User's Manual

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Summary of Contents for Weq CTW900

  • Page 1 Motors I Automation I Energy I Transmission & Distribution I Coatings AC/DC Converter CTW900 User’s Manual...
  • Page 3 User’s Manual Series: CTW900 Language: English Document number: 10002225239 / 04 Software Version: 1.1X Publication Date: 02/2018...
  • Page 4 Revision Description Chapter Initial Issue Included information about field supply on Table 10.1 Modified dimension ‘b’of Size D on Figure 5.2. Fix the unit of measurement of parameters P0090 and P0094. Change of maximum field current for Size D. 1, 4 and 5 Included references for fuses used inside Size D.

  • Page 5: Table Of Contents

    3 SAFETY INSTRUCTIONS ................ 28 SAFETY WARNINGS IN THE MANUAL ..................28 SAFETY WARNINGS ON THE PRODUCT .................. 28 PRELIMINARY RECOMENDATIONS ..................29 4 ABOUT THE CTW900 ................30 MANUAL INFORMATION ......................30 SOFTWARE VERSION ........................ 30 CHARACTERISTICS ........................30 MODELS AND VERSIONS ......................
  • Page 6 8.2.1 Cleaning Instructions ....................137 TECHNICAL ASSISTANCE ......................138 9 DEVICES AND ACCESSORIES ............. 139 10 TECHNICAL SPECIFICATIONS ............140 10.1 POWER DATA ........................140 10.2 ELECTRONICS/GENERAL DATA ..................141 10.3 DIMENSIONING OF THE CTW900 ..................142 6 | CTW900...

  • Page 7: Quick Parameter Reference

    -100.00 to 100.00 % 09, 32 P0020 A13 Value -100.00 to 100.00 % 09, 32 P0021 A14 Value -100.00 to 100.00 % 09, 32 P0022 Tacho Voltage -500.0 to 500.0 V P0023 Software Version 0.00 to 655.35 09, 36 CTW900 | 7...
  • Page 8 Seventh Fault Time 00:00 to 23:59 P0078 Eighth Fault 0 to 999 P0079 Eighth Fault Day/Month 00/00 to 31/12 P0080 Eighth Fault Year 0 to 2099 P0081 Eighth Fault Time 00:00 to 23:59 P0082 Ninth Fault 0 to 999 8 | CTW900...
  • Page 9 Multispeed Ref. 5 0 to 10000 rpm 1200 rpm P0129 Multispeed Ref. 6 0 to 10000 rpm 1500 rpm P0130 Multispeed Ref. 7 0 to 10000 rpm 1800 rpm P0131 Multispeed Ref. 8 0 to 10000 rpm 1650 rpm CTW900 | 9...
  • Page 10 Year 2000 to 2099 2012 P0197 Hour 00 to 23 P0198 Minutes 00 to 59 P0199 Seconds 00 to 59 P0200 Password 0 = Inactive 1 = Active 2 = Change password P0201 Language 0 = Português 10 | CTW900...
  • Page 11 Reference Eng. Unit 1 32 to 127 P0210 Reference Eng. Unit 2 32 to 127 P0211 Reference Eng. Unit 3 32 to 127 P0212 Reference Decimal Point 0 = wxyz 1 = wxy.z 2 = wx.yz 3 = w.xyz CTW900 | 11...
  • Page 12 LOC Run/Stop Selection 0 = I, O Keys CFG1 27, 29, 1 = DIx 2 = Serial/USB 3 = Anybus-CC 4 = SoftPLC P0225 LOC JOG Selection 0 = Inactive CFG1 27, 29, 1 = JOG Key 12 | CTW900...
  • Page 13 AI4 Signal Type 0 = 0 to 10 V/20 mA CFG1 1 = 4 to 20 mA 2 = 10 V/ 20 mA to 0 3 = 20 to 4 mA 4 = -10 to +10 V CTW900 | 13...
  • Page 14 CFG1 1 = 4 to 20 mA 2 = 20 to 0 mA 3 = 20 to 4 mA 4 = 0 to 10 V 5 = 10 to 0 V 6 = -10 to +10 V 14 | CTW900...
  • Page 15 16 = JOG+ 17 = JOG- 18 = No Ext. Alarm 19 = No Ext. Fault 20 = Reset 21 = Speed Reg. Gains 22 = Prog. Off 23 = Load User 1/2 24 = Load User 3 CTW900 | 15...
  • Page 16 0 = 20 A 09, 36 1 = 50 A 2 = 90 A 3 = 125 A 4 = 180 A 5 = 260 A 6 = 480 A 7 = 640 A 8 = 1000 A 16 | CTW900...
  • Page 17 Serial Interface Status 0 = Off 1 = On 2 = Watchdog Error P0317 Oriented Start-up 0 = No CFG2 1 = Yes P0318 Copy Function MemCard 0 = Inactive CFG1 1 = Drive->MemCard 2 = MemCard->Drive CTW900 | 17...
  • Page 18 1 = P0550* <>P0551 2 = P0550* > P0551 3 = P0550* < P0551 4 = Alarm 5 = Fault 6 = DIx P0553 Trace Sampling Period 1 to 65535 P0554 Trace Pre-Trigger 0 to 100 % 18 | CTW900...
  • Page 19 Bit 0 = DO1 09, 111 Bit 1 = DO2 Bit 2 = DO3 Bit 3 = DO4 Bit 4 = DO5 P0696 AOx Value 1 -32768 to 32767 09, 111 P0697 AOx Value 2 -32768 to 32767 09, 111 CTW900 | 19...
  • Page 20 CFG1 P0742 Anybus Write Word #7 0 to 1499 CFG1 P0743 Anybus Write Word #8 0 to 1499 CFG1 P0744 Anybus Write Word #9 0 to 1499 CFG1 P0745 Anybus Write Word #10 0 to 1499 CFG1 20 | CTW900...
  • Page 21 -32768 to 32767 P1047 SoftPLC Parameter 38 -32768 to 32767 P1048 SoftPLC Parameter 39 -32768 to 32767 P1049 SoftPLC Parameter 40 -32768 to 32767 P1050 SoftPLC Parameter 41 -32768 to 32767 P1051 SoftPLC Parameter 42 -32768 to 32767 CTW900 | 21...
  • Page 22 SoftPLC Parameter 50 -32768 to 32767 Notes: RO = Read only parameter CFG1 = Configuration parameter level 1: alteration not allowed with the converter Running CFG2 = Configuration parameter level 2: alteration allowed with the converter Disabled only 22 | CTW900...

  • Page 23: Faults And Alarms

    The relays set for “Without Fault” are switched off. ■ In order to enable the CTW900 again and operate it normally, it is necessary to reset it, which can be done the following ways: Switching off the electronics power supply (XC5) and switching it back on (power-on reset);...
  • Page 24 Ambient temperature above the maximum acceptable (40°C). ■ Fault on the fans of product. Note: Fault can only be reset when the temperature is below ■ Improper installation with obstruction of 82°C. the inlets and/or outlets of the product. 24 | CTW900...
  • Page 25 Poor installation of the communication Serial Communication within a certain period. and/or ground cables. Timeout ■ Master sending new telegrams in a Note: It may be disable by setting P0314 = 0.0s. period longer than the setting in P0314. CTW900 | 25...
  • Page 26 F149: ■ The firmware recorded on the PLD of the control board is not ■ PLD not recorded. Incompatible PLD compatible with the firmware of the CTW900. ■ PLD with firmware of another product. Firmware F150: ■ Actuates when the motor speed exceeds the value of P0132 ■...
  • Page 27 Faults and Alarms. Fault/Alarm Description Possible Causes A700: ■ Check the SoftPLC User’s Manual of the CTW900. Keypad (HMI) Disconnected F701: Keypad (HMI) Disconnected A702: Converter Disabled A704: Two Movements Enabled A706: ■ Check the SoftPLC User’s Manual of the CTW900.

  • Page 28: Safety Instructions

    Safety Instructions SAFETY INSTRUCTIONS This manual contains information necessary for the correct programming of the converter CTW900. It was written to be used by people with proper technical training or qualification to operate this kind of equipment. SAFETY WARNINGS IN THE MANUAL...

  • Page 29: Preliminary Recomendations

    NOTE! For the purposes of this manual, qualified personnel are those trained in order to be able to: 1. Install, ground, power up and operate the CTW900 in accordance with this manual and the safety legal procedures in force. 2. Use the protective equipment according to the standards in force;...

  • Page 30: About The Ctw900

    Due to the wide range of functions of this product, it may be used in applications different from those presented hereby. Neither does this manual aim at presenting all the possible applications of the CTW900, nor can the manufacturer take any liability for the use of the converter which is not based on this manual.

  • Page 31: Models And Versions

    Figure 4.2 – Simplified block diagram of the CTW900 MODELS AND VERSIONS The CTW900 converter family is divided into four frame sizes (A, B, C and D), which encompass a wide range of voltage and current, as shown in Table 4.1:...

  • Page 32: Nameplate And Identification Code

    About the CTW900 Table 4.1 – Models and versions of the CTW900 Power Supply (Vac) Rated Maximum Frame Current 500V 600V 990V Field Size (Adc) Current (Adc)     125A  180A  260A   480A ...

  • Page 33: Human Machine Interface (Hmi)

    About the CTW900 CTW900 0640 1 – WEG Three-Phase AC/DC Converter, series CTW900 2 – Type of Armature Bridge U = Unidirectional (1-Q) A = Antiparallel (4-Q) 3 – Rated Output Current ex.: 0640 = 640A 4 – Armature Power Supply Line T = Three Phase 5 –...

  • Page 34: Installation

    Indication of motor Indication of the Mode: direction of rotation. -LOC: local mode; Indication of motor -REM: remote mode. speed in rpm. 1. Status of the CTW900: -Disable Monitoring parameters: -Ready - Speed reference in rpm; -Run - Armature voltage in Volts;...

  • Page 35: Battery

    In order to keep the operation of the internal clock while the converter is powered down, the keypad (HMI) of the CTW900 has a battery. If the battery is low, or not installed on the keypad (HMI), the clock time will be incorrect and the indication “A181 –...

  • Page 36: Installation And Connection

    If any problems are detected, contact the carrier immediately. If the CTW900 is not installed soon, store it in a clean and dry location (temperature between -25ºC and 60ºC), with a cover to prevent dust accumulation inside it.
  • Page 37 Size B 20 Kg (10,8) (16,5) (11,8) (8,9) (15,7) Size C 47 Kg (10,9) (25,5) (16,8) (8,9) (24,6) 1285 1225 Size D 150 Kg (25,5) (50,5) (16,8) (17,7) (48,2) Figure 5.2 – Main measures for mechanical installation CTW900 | 37...

  • Page 38: Electrical Installation

    ATTENTION! The following information is merely a guide for proper installation. Comply with applicable local regulations for electrical installations. ATTENTION! For technical information and dimensioning of the CTW900, refer to chapter 10. Connection Local Description R / S / T...

  • Page 39: External Supply For The Field

    External Supply for the Field The CTW900 comes from the factory with the field bridge internally supplied by the same power supply circuit of the armature (R/S/T). In case the input voltage of the armature is too high for the motor field, it is possible to supply the field circuit with a different source, by means of connector X3.

  • Page 40: Power And Grounding Wiring

    When flexible cables are used for the power and grounding connections, proper terminals must be used. ATTENTION! Sensitive equipment, such as PLCs, temperature controllers and thermocouple cables must be placed at least 25 cm away from the cables between the converter and the motor. 40 | CTW900...

  • Page 41: Protection Fuses

    For Antiparallel converters (4-Q), it is also necessary to install fuses at the converter output (A1/B2), as shown in Figure 5.6. fuses fuses CTW900 CTW900 Unidirectional Antiparallel (1-Q) (4-Q) fuses Figure 5.6 – Configuration of the elements for the protection of the armature circuit of the CTW900 CTW900 | 41...
  • Page 42 When the field bridge is supplied externally as described in section 5.3.2, ultra fast fuses must be used at the circuit input, dimensioned according to Table 5.5. In order to prevent unintentional actuation, these models must not be mounted on disconnecting switch. 42 | CTW900...

  • Page 43: Line Reactance

    Therefore, the use of a line reactance together with the CTW900 is essential in order to ensure a supply without transients for the converter, the same way its use reduces the influence generated by the commutation of the thiristors on the supply line.

  • Page 44: Grounding Connection

    = rated current of the drive on the DC side, in Amps (A). rated For 60Hz lines and voltages up to 500Vac, the recommended reactances for each model of the CTW900 are presented in Table 5.6. For other voltages or frequencies, contact WEG to check the most suitable reactance.

  • Page 45: Control Connections

    5.3.7 Control Connections The control connections of the CTW900 (analog inputs/outputs, digital inputs/outputs) are made at connector XC1, located on the CC900 control electronic board. In order to access it, remove the product front plastic cover by loosening the two fastening screws in the lower part of the cover.
  • Page 46 As default, the analog inputs and outputs come from the factory selected for the range 0 to +10V. In order to change its operation range, you can change the position of switch S1, located on the upper left corner of the CC900 electronic board. 46 | CTW900...
  • Page 47 The shield connection of the cables must also observe the form presented in Figure 5.11 (see example of connection in Figure 5.12). Table 5.7 – Separation distances between control wiring and other wiring Minimum Separation Wiring Length Distance  30 m 10 cm > 30 m 25 cm CTW900 | 47...
  • Page 48 In order to eliminate this effect, RC suppressors must be connected in parallel to the coils of those devices (in case of DC power supply, make the connection in parallel with the freewheel diodes). 48 | CTW900...

  • Page 49: Typical Configurations

    DIs, the converter is already enabled right after the power-up. This condition requires greater care in the operation of the product, because the motor can only be driven with the application of the Run command. CTW900 | 49...
  • Page 50 ■ P0226 = 4 and P0227 = 1 (DIx), in case the three-wire control in Remote mode is desired. ■ S1 and S2 are pulsing push-buttons for ‘Turn ON’ (NO contact) and ‘Turn OFF’ (NC contact), respectively. 50 | CTW900...
  • Page 51 The direction of rotation in this function is defined by the ‘Forward’ and ‘Reverse’ inputs: direct rotation for ‘Forward’ and; ■ reverse rotation for ‘Reverse’. ■ The speed reference can come from any source (like in Configuration 3). CTW900 | 51...
  • Page 52 Installation and Connection Figure 5.16 – Connections in XC1 for configuration 4 52 | CTW900...

  • Page 53: Start-Up

    Start-up START-UP For a safe start-up of the CTW900, it is really important to observe the instructions of this chapter. Before, however, the converter must have already been installed according to the previous chapter. NOTE! Even if the drive project is different from the typical drives suggested, the steps below must also be followed.

  • Page 54: Password Setting In P0000

    6.2.2 Oriented Start-up Aiming at facilitating the configuration of the application, the CTW900 offers an Oriented Start-up routine, which displays on the keypad a sequence of the main parameters to be set. In order to enter the Oriented Start-up routine, follow the sequence presented in Figure 6.2, first setting P0317=1 and then the other parameters as they are displayed on the keypad.
  • Page 55 “Selec.”,“” or “” and then “Save”. - Also set the value of the Field Minimum Current (P0177) according to the motor. Figure 6.2 – Sequence of the Oriented Start-up routine CTW900 | 55...

  • Page 56: Setting The Parameters Of The Basic Application

    However, the CTW900 has a series of other parameters that allow its adaptation to a variety of applications. This section presents some basic parameters whose setting is necessary in most cases. In order to set them, you can use the Basic Application parameter group, as shown in Figure 6.3.

  • Page 57: Feedback By Emf (P0202 = Emf)

    (P0202 = EMF) and execute the procedure of item 6.3.1. Then return the setting of P0202 to DC Tacho. Path to access P0202: Menu  01 PARAMETER GROUPS  24 Speed Feedback. 2. Enable the firing of the armature bridge by closing the switch connected to the digital input configured as General Enable. CTW900 | 57...

  • Page 58: Feedback By Encoder (P0202 = Encoder)

    Path to access P0202 and P0405: Menu  01 PARAMETER GROUPS  24 Speed Feedback. OPTIMIZATION OF THE REGULATORS For a better performance of speed and current regulation of the CTW900, it is recommended to set the gains of the product control loops.

  • Page 59: Optimization Of The Speed Regulator

    Positive Torque Current Limit (P0169) according to the application (factory setting: P0355 = 5 % and P0169 = 25 %). 6.4.3 Optimization of the Speed Regulator 1. Set the speed reference for 75 % of the motor maximum speed. CTW900 | 59...

  • Page 60: Optimization Of The Field Regulator

    Normally the factory settings are enough for most applications. However, if the motor deceleration is too slow (not responding to the value set in P0101), it is recommended to increase the EMF Proportional Gain (P0186). Path to access P0186: Menu  01 PARAMETER GROUPS  26 REGULATORS  103 EMF Reg. 60 | CTW900...

  • Page 61: Detailed Description Of The Parameters

    DETAILED DESCRIPTION OF THE PARAMETERS PARAMETER STRUCTURE In order to facilitate the setting and monitoring tasks, the CTW900 parameters are arranged in groups divided into up to three different levels. Thus, when the right soft key is pressed in the monitoring mode (“Menu”), the first four groups are shown on the display, and it is possible to browse the other groups with the “...

  • Page 62: Parameter Groups [01]

    Description: These parameters set the date and time of the real time clock of the CTW900. It is important to set them with the correct date and time so that the fault and alarm log occurs with real date and time information.
  • Page 63 26 = SoftPLC P1019 # Properties: Groups of 01 PARAMETER GROUPS  20 HMI Access via HMI: Description: These parameters define which variables and in how they will be shown on the keypad (HMI) in the monitoring mode. CTW900 | 63...
  • Page 64 1 = wxy.z 2 = wx.yz 3 = w.xyz Properties: Groups of 01 PARAMETER GROUPS  20 HMI Access via HMI: Description: It defines the number of decimal places to show P0001 and P0002 on the display. 64 | CTW900...

  • Page 65: Ramps [21]

    (defined by P0105). Once this command is activated, the converter ignores the time of the first ramp (P0100 or P0101) and follows the value set for the second ramp (see example for external command via Dix in Figure 7.1 below). CTW900 | 65...
  • Page 66 This parameter allows the acceleration and deceleration ramps to have a non-linear profile, similar to an “S”, as shown in Figure 7.2 below. Figure 7.2 – S or linear Ramp The objective of the S function Ramp is to reduce mechanical shocks during accelerations and decelerations. 66 | CTW900...

  • Page 67: Speed References [22]

    ” keys are active (P0221 = 0 or P0222 = 0), this parameter sets the motor speed reference   value. The value of P0121 will be maintained with the last value set even when the converter is disabled or powered down, as long as parameter P0120 is configured as Active. CTW900 | 67...
  • Page 68 P0164 – Remote Reference Offset Adjustable Range: –999 to 999 Factory Setting: 0 Properties: Groups of 01 PARAMETER GROUPS  22 Speed Access via HMI: References....Description: Set the speed reference offset of the analog inputs (AIx). Refer to Figure 7.3. 68 | CTW900...
  • Page 69 Detailed Description of the Parameters. Figure 7.3 – Block diagram of the speed reference CTW900 | 69...

  • Page 70: Limits [23]

     38 Protections Access via HMI: ....Description: These parameters allow decreasing the current limitation value for speeds above the specification in P0138, according to the curve of Figure 7.5: Figure 7.5 – Current limitation considering the speed 70 | CTW900...

  • Page 71: Speed Feedback [24]

    Properties: CFG1 Groups of 01 PARAMETER GROUPS Access via HMI:  24 Speed Feedback ..Description: The CTW900 can use three types of speed feedback: EMF (Electromotive Force of the Armature); ■ DC tacho; ■ Encoder. ■ Depending on the type of feedback chosen, it may be necessary to set additional parameters for the speed to be correctly calculated by the converter.

  • Page 72: Control Options [25]

    Description: In some applications in which you want to control only the motor torque, the CTW900 can be configured to regulate only the armature current, ignoring the speed feedback value. In order to do so, you must set P0299 = 1 (Torque Mode).

  • Page 73: Regulators [26]

    In order to set these gains properly, follow the procedures described in sections 6.4.1 and 6.4.3. Note: In case there are some digital input set for the “Speed Reg. Gains” function, the CTW900 will use the second gain set (P0161 and P0162) when this Dix is active (24V).
  • Page 74 The differential action can minimize the effects on the motor speed arising out of the application or of the removal of load. Form of actuation of the speed differential gain (Gd): Figure 7.6 – Structure of the speed regulator and form of actuation of the differential gain 74 | CTW900...

  • Page 75: Current Regulator [101]

    In a general way, we can say the Proportional gain (P0167) stabilizes sudden current changes, whereas the Integral gain (P0168/P0171) corrects the error between the torque reference and the effective current. The use of each of the integral gains will be done automatically by the CTW900, according the output current level: for an intermittent armature current (motor with no load), the control will use the gain P0168;...

  • Page 76: Field Regulator [102]

    Properties: Groups of 01 PARAMETER GROUPS  26 REGULATORS Access via HMI: .. 102 Field Regulator ..Description: Value of the current applied to the motor field when the converter is Disabled or with Faults present. 76 | CTW900...

  • Page 77: Emf Regulator [103]

    Adjustable Range: 0.00 to 6.00 Factory Setting: 0.03 Properties: Groups of 01 PARAMETER GROUPS  26 REGULATORS Access via HMI: .. 103 EMF Regulator ..Description: Gains of the EMF regulator, responsible for the dynamic response of the EMF loop. CTW900 | 77...

  • Page 78: Local Control [27] / Remote Control [28]

    It defines the origin source of the command that will select between Local or Remote status so that the mode indicated at the end of each option specifies the default selection adopted at the power-up of the CTW900. 78 | CTW900...
  • Page 79 They define the origin source of the ‘Direction of Rotation’ command in the Local or Remote situation so that the direction indicated at the end of each option specifies the default selection adopted at the power-up of the CTW900. CTW900 | 79...
  • Page 80  27 Local Control  28 Remote Control Access via HMI: ....Description: They define the origin source for the ‘JOG’ command in the Local and Remote situation. Figure 7.9 – Block diagram of the Local / Remote status 80 | CTW900...

  • Page 81: Run/Jog Configuration [29]

    The armature firing will be enabled again when one of the conditions defined by parameter P0218 is met. DANGER! Be careful when you get close to the motor when the CTW900 is in the Blocked condition. It may start spinning at any moment due to the process conditions. If you wish to handle the motor or execute any kind of maintenance, power down the converter.

  • Page 82: Multispeed [31]

    This parameter is also used by the digital and relay output functions (see section 7.3.15). 7.3.11 Multispeed [31] The Multispeed function is used when up to eight fixed preset speeds are desired, being controlled by means of the digital inputs (DI4, DI5 e DI6). 82 | CTW900...
  • Page 83 24 V P0125 24 V P0126 24 V 24 V P0127 24 V P0128 24 V 24 V P0129 24 V 24 V P0130 24 V 24 V 24 V P0131 Figure 7.10 – Multispeed function operation CTW900 | 83...

  • Page 84: Analog Inputs [32]

    7.3.12 Analog Inputs [32] On the control board of the CTW900 (CC900) are two analog inputs (AI1 and AI2), normally enough for most applications. If necessary, however, other two inputs (AI3 and AI4) can be added by means of the available...
  • Page 85 Adjustable Range: 0.00 to 16.00 s Factory Setting: 0.01 s Properties: Groups of 01 PARAMETER GROUPS 07 I/O CONFIGURATION  32 Analog Inputs  32 Analog Inputs Access via HMI: ....Figure 7.11 – Block diagram of the analog inputs CTW900 | 85...
  • Page 86 (10 to 0) V / (20 to 0) mA Off / On (20 to 4) mA (-10 to +10) V When current signals are used in the inputs, the switch corresponding to the desired output must be set in the “ON” position. 86 | CTW900...

  • Page 87: Analog Outputs [33]

    7.3.13 Analog Outputs [33] The CTW900 provides two analog outputs (AO1 and AO2) directly on its control board, with galvanic isolation and resolution of 11 bits. In case more outputs or a greater resolution is needed, other two outputs (AO3 and AO4) of 14 bits can be added by means of the accessory IOA-01.
  • Page 88 ..Access via HMI: Description: They set the gain of the analog outputs by multiplying the value of the selected variable so as to generate the output signal. See the representation of gain application in Figure 7.12 88 | CTW900...
  • Page 89 01 PARAMETER GROUPS 07 I/O CONFIGURATION Access via HMI:  33 Analog Outputs .. 33 Analog Outputs ..Description: Those parameters configure if the analog output signal will be in current or voltage with direct or reverse reference. CTW900 | 89...

  • Page 90: Digital Inputs [34]

    For the drive and control of the converter by means of external physical commands, the standard version of the CTW900 has six digital inputs, and two more can be optionally added with the accessories IOA-01 and IOB-01. The parameters that configure these inputs are presented below.
  • Page 91 Local/Remote: When set, this functions actuates in “Local” with the application of 0V to the input, and in “Remote” with the application of +24V. It is also necessary to set P0220=4 (DIx). Option available only in parameter P0266, P0267 and P0268 (DI4, DI5 and DI6). CTW900 | 91...
  • Page 92 When the status of the Dix changes from low level to high level (transition from 0 V to 24 V), the user’s memory 3 will be loaded, since the content of the present parameters of the converter has been previously transferred to the parameter memory 3 (P0204 = 9). 92 | CTW900...
  • Page 93 DIx set to 24 V; ■ trigger condition for the Trace configured for DIx (P0552 = 6); ■ status of the Trace function in “Waiting” (P0576 = 1). ■ For further details, refer to section 7.3.21. CTW900 | 93...
  • Page 94 Detailed Description of the Parameters Figure 7.14 a) to g) – Details about the operation of the functions of the digital inputs 94 | CTW900...
  • Page 95 Detailed Description of the Parameters. Figure 7.14 h) to j) – Details about the operation of the functions of the digital inputs (continued) CTW900 | 95...
  • Page 96 Detailed Description of the Parameters Figure 7.14 k) to m) – Details about the operation of the functions of the digital inputs (continued) 96 | CTW900...

  • Page 97: Digital / Relay Outputs [35]

    Parameters. 7.3.15 Digital / Relay Outputs [35] For the implantation of the protection and interlock logics, the CTW900 has three digital relay outputs on its control board, and two more open collector outputs on the accessories IOA-01 and IOB-01. Below is the detailed description of the parameters related to these outputs.
  • Page 98 Remote: Function that will activate the digital output programmed when the converter is operating in the Remote status. Run: Indicates if the CTW900 is operating with programmed reference (even if that is zero), and is equivalent to the ‘Run’, ‘Accelerating’ and ‘Decelerating’ status of the converter.
  • Page 99 (Torque reference point selected by the user) Time Hx P0294 (Time reference point selected by the user) P0046 Total Speed Reference Figure 7.15 a) to d) – Details about the operation of the functions of the digital and relay outputs CTW900 | 99...
  • Page 100 Detailed Description of the Parameters Figure 7.15 e) to k) – Details about the operation of the functions of the digital and relay outputs (continued) 100 | CTW900...
  • Page 101  35 Digital Outputs  35 Digital Outputs Access via HMI: ....Description: They define the speed reference points used in the functions N*> Nx, N > Nx and N <Ny of the digital and relay outputs. CTW900 | 101...

  • Page 102: Drive Data [36]

    It defines the time reference point used in the function Time Enabled>Hx of the digital and relay outputs. 7.3.16 Drive Data [36] In this group are the parameters related of the information and characteristics of the CTW900, such as model, accessories present, software version, etc.
  • Page 103 3, 4 or 5, the code will be shown through parameter P0028. The following table shows the codes informed in these parameters regarding the accessories of the CTW900. Table 7.16 – Identification codes for the accessories of the CTW900...
  • Page 104 Properties: CFG2 Groups of 01 PARAMETER GROUPS  36 Drive Data Access via HMI: ..Description: It defines the converter power supply, and it must be set according to the power supply to which the CTW900 is connected. 104 | CTW900...

  • Page 105: Motor Data [37]

     36 Drive Data Access via HMI: ..Description: It defines the type of the CTW900 in relation to the configuration of the armature bridge: option 0 (Single Bridge) = converter Unidirectional (1-Q); ■ option 1 (Double Bridge) = converter Antiparallel (4-Q).

  • Page 106: Protections [38]

    01 PARAMETER GROUPS  38 Protections Access via HMI: ..Description: It indicates the present temperature of the power heatsink in Celsius. Its value is also used to monitor the alarm of the converter overtemperature protection (A050 and F051). 106 | CTW900...
  • Page 107 It establishes the maximum level that the output current can reach without the actuation of the Overcurrent. In case the effective current (P0003) exceeds the value defined in P0135 for over two seconds, the CTW900 will disable the armature firing and will display the fault F071.
  • Page 108 The protection will be inactive if the setting of P0156 is smaller or equal to P0157, or if P0348 is configured for 0 (Inactive) or 3 (Alarm). P0340 – Auto-Reset Time Adjustable Range: 0 to 600 s Factory Setting: 0 s Properties: Groups of 01 PARAMETER GROUPS Access via HMI:  38 Protections ..108 | CTW900...
  • Page 109 Parameters. Description: When a fault occurs (except for F074, F084, F099 and F149), the CTW900 may automatically reset after the time set in P0340 has elapsed. After the auto-reset, if the same fault occurs again for three times consecutively, the auto-reset function will be disabled.
  • Page 110 EMF value reaches 115 V, meeting the conditions of P0353 (> 50 V) and of P0354 (|P0002 – P0041|> 25 %). Figure 7.17 – Monitoring area of the protection against Tacho/ Encoder Loss according to the value in P0353 110 | CTW900...
  • Page 111 The protection will be disable if P0357 is set to 60s. P0358 – Maximum Armature Overvoltage Adjustable Range: 0 to 100 % Factory Setting: 10 % Properties: Groups of 01 PARAMETER GROUPS  38 Protections Access via HMI: ..CTW900 | 111...
  • Page 112 P0296. With this protection, when the line voltage (P0004) falls below the value of [100 % – P0362) x P0296] for a period over the setting in P0357, the converter will be disabled by fault F003. 112 | CTW900...

  • Page 113: Communication [39]

    F009. 7.3.19 Communication [39] In order to exchange information via communication network, the CTW900 features several standardized communication protocols, such as MODBUS, Profibus, CANopen, DeviceNet, EtherNet/IP and PROFINET. For further details regarding the inverter configuration to operate in those protocols, refer to the Modbus and Anybus Communication Manual of the CTW900.

  • Page 114: Local/ Remote Configuration [110]

    P0699 – Value 4 for Analog Outputs Parameters used to monitor and control the CTW900 when it operates by communication networks. For further details on these parameters, refer to the Communication Manuals of the CTW900, supplied in the CD-ROM that comes with the product.

  • Page 115: Softplc [40]

    Detailed Description of the Parameters. 7.3.20 SoftPLC [40] The SoftPLC function allows the CTW900 to execute functions that are characteristic of a PLC. Using this function you can create interlock logics between inputs and outputs, enabling the execution of specific motor drive sequences.

  • Page 116: Trace Function [41]

    7.3.21 Trace Function [41] The trace function is used to register variables of interest of the CTW900 (such as current, voltage, speed) when a certain event occurs in the system (alarm/ fault, high current, for instance). This event, for triggering the data storage process, is called trigger in this manual.
  • Page 117 Adjustable Range: 0 to 100 % Factory Setting: 0 % Properties: Groups of 01 PARAMETER GROUPS  41 Trace Function Access via HMI: ..Description: Percentage of data that will be recorded before the occurrence of the trigger event. CTW900 | 117...
  • Page 118 0 to 100 %, corresponds to requesting the reservation of 0 to 15 Kbytes for the Trace Function. Each point stored by the function takes two bytes in the memory of the CTW900. This parameter defines, indirectly, the maximum number of points the user can store by means of this function.
  • Page 119 P0572 – Day/ Month of the Trace Trigger Adjustable Range: 00/00 to 31/12 Factory Setting: P0573 – Year of the Trace Trigger Adjustable Range: 00 to 99 Factory Setting: P0574 – Hour of the Trace Trigger Adjustable Range: 00:00 to 23:59 Factory Setting: CTW900 | 119...

  • Page 120: Oriented Start-Up [02]

    All parameters with content different from the factory setting can be viewed in sequence in this menu. BASIC APPLICATION [04] Groups of Access via HMI: 04 BASIC APPLICATION In this group are the parameters common to most applications. For further details, refer to section 6.2.3. 120 | CTW900...

  • Page 121: Self-Tuning [05]

    Figure 7.19 – Transfer of parameters by means of P0204 In order to load the parameters of User 1, User 2 and/or User 3 to the CTW900 operating area (P0204=4, 5 or 6), it is necessary that those areas be previously saved.
  • Page 122 Memory Card  CTW900: transfers the content of the parameters stored in the Flash memory to the control board of the CTW900. After storing the parameters of the CTW900 in a FLASH Memory Module, it is possible to transfer them to another CTW900 using this function. However, if the converters have incompatible software versions, the keypad will display the message: “FLASH Memory Module with invalid parameters”...
  • Page 123 In case the keypad (HMI) had been previously loaded with parameters from a version “different” from that of the CTW900 where you are trying to copy the parameters to, the operation will not be effected and the keypad (HMI) will display fault F082 (Copy Function Fault). It is understood as a “different”...

  • Page 124: Fault History [08]

    P0070 – Sixth Fault P0074 – Seventh Fault P0078 – Eighth Fault P0082 – Ninth Fault P0086 – Tenth Fault Adjustable Range: 0 to 999 Factory Setting: Properties: RO Groups of 08 FAULT HISTORY Access via HMI: 124 | CTW900...
  • Page 125 P0084 – Ninth Fault Year P0088 – Tenth Fault Year Adjustable Range: 0 to 2099 Factory Setting: Properties: RO Groups of 08 FAULT HISTORY Access via HMI: Description: They display the year of the ten last faults occurred. CTW900 | 125...
  • Page 126 P0093 – Total Reference at the Moment of the Last Fault Adjustable Range: -10000 to 10000 rpm Factory Setting: Properties: RO Groups of 08 FAULT HISTORY Access via HMI: Description: Record of the total speed reference at the moment of the occurrence of the last fault. 126 | CTW900...

  • Page 127: Read Only Parameters [09]

    7.10 READ ONLY PARAMETERS [09] In order to simplify the view of the main reading variables of the do CTW900, you may directly access the group [09] – “Read Only Parameters”. It is important to point out that all the parameters of this group can only be viewed on the keypad display, and cannot be changed by the user.
  • Page 128 It indicates the present power line voltage (R/S/T) in Volts (V). P0005 – Power Line Frequency Adjustable Range: 0.0 to 100.0 Hz Factory Setting: Properties: RO Groups of 09 READ ONLY PARAMETERS Access via HMI: Description: Actual value of the power line frequency (R/S/T) in Hertz (Hz). 128 | CTW900...
  • Page 129 Groups of 09 READ ONLY PARAMETERS Access via HMI: Description: It indicates one of the ten possible status of the CTW900. See the description of each status in the following table. Table 7.26 –Description of the status of the CTW900 Status...
  • Page 130 It indicates the selected bridge for the triggering of the armature circuit. This selection is automatically done by the control circuit of the CTW900, according to the needs of reverse or braking. Note: commutation to Bridge B only occurs in Antiparallel converter (CTW900 A).
  • Page 131 Access via HMI: Description: They indicate the voltages of the power line (R/S/T) in Volts (V). P0038 – Encoder Speed Adjustable Range: 0 to 65535 rpm Factory Setting: Properties: RO Groups of 09 READ ONLY PARAMETERS Access via HMI: CTW900 | 131...
  • Page 132 This value is maintained even when the converter is powered down. If you wish to reset this parameter, set P0204 = 1. P0044 – kVAh Counter Adjustable Range: 0 to 65535 h Factory Setting: Properties: RO Groups of 09 READ ONLY PARAMETERS Access via HMI: 132 | CTW900...
  • Page 133 7.3.18. P0098 – Phase Sequence Adjustable Range: 0 = RST Factory Setting: 1 = RTS Properties: RO Groups of 09 READ ONLY PARAMETERS Access via HMI: Description: It indicates the phase sequence of the power supply. CTW900 | 133...

  • Page 134: 7.11 Parameter Incompatibility

    Detailed Description of the Parameters 7.11 PARAMETER INCOMPATIBILITY In order to prevent drive or control problems, the CTW900 identifies and signals parameterization combinations that can lead to an undefined operating situation. Thus, in case some of the conditions of Table 7.27 occurs, the converter will signal the incompatibility on the display and will go into the Configuration status (“Config”, on the keypad), preventing its enabling until the...
  • Page 135 Detailed Description of the Parameters. Figure 7.21 – Block diagram of the control of the CTW900 CTW900 | 135...

  • Page 136: Troubleshooting And Maintenance

    Voltage). Keypad ■ Check if the keypad connection to the converter is correct. Connection Display off ■ Check if fuse F1 of the electronics (located on the IC900 board) is burned. If so, Electronics Fuse replace it. 136 | CTW900...

  • Page 137: Preventive Maintenance

    Troubleshooting and Maintenance. PREVENTIVE MAINTENANCE When installed in proper environments and operating conditions, the CTW900 requires little maintenance. Table 8.1 provides the recommended inspections to be performed every 6 months after the start-up. DANGER! Always disconnect the general power supply before touching any electrical component ■...

  • Page 138: Technical Assistance

    By before contacting, it is important to have the following data at hand: converter model; ■ serial number informed on the product nameplate (see section 4.5); ■ software version installed (see P0023); ■ application and effected parameterization data. ■ 138 | CTW900...

  • Page 139: Devices And Accessories

    Accessories. DEVICES AND ACCESSORIES The CTW900 has several accessories which can be added to the converter in a simple and fast way based on the plug and play concept. Therefore, when an accessory is connected to the expansion slots, the control circuit identifies the model and informs the code of the accessory connected in P0027 and P0028.

  • Page 140: 10 Technical Specifications

    288 kW 250 kW 1362 W 640 A 384 kW 333 kW 1575 W 1000 A 600 kW 520 kW 2343 W 1500 A 900 kW 780 kW 3900 W 2000 A 1200 kW 1040 kW 5300 W 140 | CTW900...

  • Page 141: 10.2 Electronics/General Data

    USB SERIAL ■ CONNECTION TO PC USB plug type B ("device"); INTERFACE ■ Interconnecting cable: standard host/device shielded USB cable. ■ Modbus RTU; ■ Modbus TCP; ■ DeviceNet; COMMUNICATION NETWORKS ■ Profibus DP; ■ EtherNet/IP; ■ PROFINET IO. CTW900 | 141...

  • Page 142: 10.3 Dimensioning Of The Ctw900

    Technical Specifications 10.3 DIMENSIONING OF THE CTW900 In order to dimension the converter CTW900 correctly, it is necessary to take into account the DC motor used, the load cycle characteristic and the environmental conditions of the application. Thus, first you must check the rated voltage of the motor armature so as to determine the converter voltage class, as per Table 10.1.
  • Page 143 Table 10.3 – Recommended voltages for field feedback Field Rated Voltage [U Field Supply Voltage  190 V 220 V 190 V < U  330 V 380 V 330 V < U < 380 V 440 V CTW900 | 143...
  • Page 144 WEG Drives & Controls – Automação LTDA. Jaraguá do Sul - SC – Brazil Phone 55 (47) 3276-4000 - Fax 55 (47) 3276-4020 São Paulo - SP – Brazil Fone 55 (11) 5053-2300 - Fax 55 (11) 5052-4212 automacao@weg.net www.weg.net...

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