Omron Q2A Series Manual page 4

Braking torque
V/f characteristics
Main control functions
Motor
Momentary overcurrent
Overload
Overvoltage
Undervoltage
Momentary power loss ride-thru
Heatsink overheat
Stall prevention
Ground fault
DC Bus charge LED
Area of use
Power supply
Ambient temperature
Humidity
Storage temperature
Surrounding area
Altitude
Vibration
Installation orientation
Safety standard
*4
Protection design
*1. Correctly select drive capacity for this starting torque in these control methods: OLV, CLV, AOLV, AOLV/PM, CLV/PM.
*2. Set L3-04 to 0 (Stall Prevention during Decel = Disabled) when operating the drive with a regenerative converter, regenerative unit, braking unit, braking
resistor or braking resistor unit. Failure to obey could prevent the drive from stopping in the specified deceleration time and cause serious injury or death.
*3. The drive can trigger the overload protection function at 150% of the drive rated output in less than 60 seconds if the output frequency is less than 6 Hz.
*4. Install an UL Type 1 kit on an Open-chassis type (IP20) to convert the drive to a Enclosed wall-mounted type (UL Type 1).
4
Approximately 20%
Approximately 125% with a dynamic braking option
Short-time average deceleration torque:
• Motor output 0.4/0.75 kW: over 100%
• Motor output 1.5 kW: over 50%
• Motor output 2.2 kW or higher: over 20%, over-excitation braking/high slip braking allow for approximately 40%
Continuous regenerative torque: approx. 20%, dynamic braking option allows for approximately 125%, 10% ED, 10 s
Models 4002 to 4168 have a built-in braking transistor.
Short-time average deceleration torque refers to the torque needed to decelerate the motor (uncoupled from the load)
from the rated speed to zero. Motor characteristics can change the actual specifications.
Motor characteristics change the continuous regenerative torque and short-time average deceleration torque for motors
of 2.2 kW or higher.
Select from 15 pre-defined V/f patterns or a user-set V/f pattern
Torque control, Droop control, Speed/Torque control switching, Feed forward control, Zero servo function, Restart after
momentary power loss, Speed search, Overtorque/Undertorque detection, Torque limit, 17 step speed (max), Accel/De-
cel switch, S-curve acceleration/deceleration, 3-wire sequence, Auto-tuning (rotational and stationary), Dwell function,
Cooling fan ON/OFF, Slip compensation, Torque compensation, Frequency Jump, Upper/lower limits for frequency ref-
erence, DC injection braking at start and stop, Overexcitation braking, High slip braking, PID control (with sleep function),
Energy saving control, MEMOBUS/Modbus communication (RS-485 max. 115.2 kbps), Auto restart, Application presets,
Q2dev (customized functions), Removable terminal block with parameter backup function, Online tuning, KEB, Overex-
citation deceleration, Inertia (ASR) tuning, Overvoltage suppression, High frequency injection
Electronic thermal overload protection
Drive stops when the output current exceeds 200% of the HD output current
Drive stops when the output current exceeds 150% of the HD output current for 60 seconds
Stops when the DC bus voltage is more than approximately 820 V
Stops when the DC bus voltage decreases to less than approximately 380 V
Stops when power loss is longer than 15 ms.
Continues operation if power loss is shorter than 2 s (depending on parameter settings).
Stop time may be shortened depending on the load and motor speed.
Drive capacity will change the continuous operation time. A momentary power loss recovery unit is necessary to continue
operation through a 2 s power loss on models 4002 to 4031.
Protected by thermistor
Stall prevention is available during acceleration, deceleration and during run
Electronic circuit protection
This protection detects ground faults during run. The drive will not provide protection when there is a low-resistance
ground fault for the motor cable or terminal block or energizing the drive when there is a ground fault.
Charge LED illuminates when DC bus voltage is more than 50 V.
Indoor (no corrosive gas, dust, etc...)
Overvoltage Category III
-10ºC to +50ºC
95% RH or less (without condensation)
-20ºC to +70ºC (short-term temperature during transportation)
Pollution degree 2 or less
Install the drive in an area without:
• Oil mist, corrosive or flammable gas or dust
• Metal powder, oil, water or other unwanted materials
• Radioactive materials or flammable materials, including wood
• Harmful gas or fluids
• Salt
• Direct sunlight
Up to 1000 meters max. (output derating of 1% per 100 m above 1000 m, max. 3000 m)
• 10 Hz to 20 Hz: 1G (9.8 m/s²)
• 20 Hz to 55 Hz: 4002 to 4168 - 0.6G (5.9 m/s²) / 4208 to 4675 - 0.2G (2 m/s²)
Install the drive vertically for sufficient airflow to cool the drive.
• UL61800-5-1
• EN61800-3
• IEC/EN61800-5-1
• Two Safe Disable inputs and one EDM output according to ISO/EN13849-1 Cat.III PLe, IEC/EN61508 SIL3
Open chassis type: IP20
*2
*3
Frequency inverters