Crompton Controls CIMR-VC4A0001BAA User Manual
Page 5
5
Specifications
Control Functions
Control methods
Open Loop Vector Control (Current Vector), V/f Control, PM Open Loop Vector Control (for SPM and IPM motors)
Frequency Control Range
0.01 to 400 Hz
Frequency Accuracy
(Temperature Fluctuation)
Digital input: within ±0.01% of the max. output frequency (-10°C to +50°C))
Analog input: within ±0.1% of the max. output frequency (25°C ±10°C)
Frequency Setting
Resolution
Digital input: 0.01 Hz
Analog input: 1/1000 of max. frequency
Output Frequency
Resolution
20 bit of maximum output frequency (parameter E1-04 setting)
Frequency Setting
Resolution
Main frequency reference: 0..10 V (20 kΩ) 10 bit, 4..20 mA (250 Ω) or 0..20 mA (250 Ω) 9-bit
Main speed reference : Pulse Train Input (max. 32 kHz)
Starting Torque
200% / 0.5 Hz (assumes Heavy Duty rating AC Motor of 3.7 kW or less using Open Loop Vector Control),
50% / 6 Hz (assumes PM Open Loop Vector Control)
Speed Control Range
1:100 (Open Loop Vector Control), 1:20 to 40 (V/f Control), 1:10 (PM Open Loop Vector Control)
Speed Control Accuracy
±0.2% in Open Loop Vector Control (25°C ±10°C) *
1
Speed Response
5 Hz in Open Loop Vector (25°C ±10°C) (requires Rotational Auto-Tuning)
Torque Limit
Open Loop Vector Control allows separate settings in four quadrants
Accel/Decel Time
0.0 to 6000.0 s (4 selectable combinations of independent acceleration and deceleration settings)
Braking Torque
q
Short-time decel torque*
2
: over 150% for 0.1/0.2 kW motors, over 100% for 0.4/ 0.75 kW motors, over 50% for 1.5 kW motors, and over 20% for
2.2 kW and above motors (overexcitation braking/High-Slip Braking: approx. 40%)
w
Continuous regen. torque: approx. 20% (approx. 125% with dynamic braking resistor option*
3
: 10% ED, 10 s, internal braking transistor)
V/f Characteristics
User-selected programs, V/f preset patterns possible
Main Control
Functions
Momentary power loss ride-thru, Speed search, Overtorque detection, Torque limit, 17-step speed (max), Accel/decel time switch, S-curve accel/decel,
3-wire sequence, Auto-tuning (rotational, stationary tuning for resistance between lines), Dwell, Cooling fan on/off switch, Slip compensation, Torque
compensation, Frequency jump, Upper/lower limits for frequency reference, DC injection braking at start and stop, Overexcitation braking, High slip
braking, PID control (with sleep function), Energy saving control, MEMOBUS comm. (RS-485/422 max, 115.2 kbps), Fault restart, Application presets,
DriveWorksEZ (customized function), Removable terminal block with parameter backup function...
Protection Function
Motor Protection
Motor overheat protection based on output current
Momentary Overcurrent Protection Drive stops when output current exceeds 200% of Heavy Duty Rating
Overload Protection
Drive stops after 60 s at 150% of rated output current (Heavy Duty Rating)*
4
Overvoltage Protection
200 V class: Stops when DC bus exceeds approx. 410 V
400 V class: Stops when DC bus exceeds approx. 820 V
Undervoltage Protection
Stops when DC bus voltage falls below the following levels:
Three-phase 200 V class: approx. 190 V, single-phase 200 V class: approx. 160 V, three-phase 400 V class: approx. 380 V, three-phase 380 V class:
approx. 350 V
Momentary Power Loss Ride-Thru
Stops after approx. 15 ms (default). Parameter settings allow the drive to continue running if power loss lasts for up to approx. 2 s *
5
Heatsink Overheat Protection
Protection by thermistor
Braking Resistance Overheat
Protection
Overheat sensor for braking resistor (optional ERF-type, 3% ED)
Stall Prevention
Separate settings allowed during acceleration, and during run. Enable/disable only during deceleration.
Ground Fault Protection
Protection by electronic circuit *
6
Charge LED
Charge LED remains lit until DC bus has fallen below approx. 50 V
Operating Environment
Area of Use
Indoors
Ambient Temperature
-10°C to +50°C (open chassis), -10°C to +40°C (NEMA Type 1)
Humidity
95 RH% or less (no condensation)
Storage Temperature
-20°C to +60°C (short-term temperature during transportation)
Altitude
Max. 1000 m (output derating of 1% per 100 m above 1000 m, max. 3000 m)
Shock
10 to less than 20 Hz (9.8 m/s2) max., 20 to 55 Hz (5.9 m/s2) max.
Safety Standard
UL508C, EN954-1 Cat. 3, IEC/EN61508 SIL2
Protection Design
IP20 open-chassis, NEMA Type 1 enclosure
*
1
Speed control accuracy may vary slightly depending on installation conditions or motor used.
*
2
Momentary average deceleration torque refers to the deceleration torque from 60Hz down to 0 Hz. This may vary depending on the motor.
*
3
If L3-04 is enabled when using a braking resistor or braking resistor unit, the motor may not stop within the specifi ed deceleration time.
*
4
Overload protection may be triggered at lower levels if output frequency is below 6 Hz.
*
5
Varies by drive capacity. Drives smaller than 7.5 kW (CIMR-VA2A0004/CIMR-VA4A0023) require a separate Momentary Power Loss Recovery Unit to continue operating during a momentary power loss of 2 s.
*
6
Protection may not be provided under the following conditions as the motor windings are grounded internally during run:
• Low resistance to ground from the motor cable or terminal block.
• Drive already has a short-circuit when the power is turned on.
Rotational Auto-Tuning must be performed to achieve the performance described with Open Loop Vector Control.