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YASKAWA VS MINI J7 series - Page 111

YASKAWA VS MINI J7 series
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110
Control Characteristics
Control Method Sine wave PWM (V/f control)
Frequency
Control Range
0.1 to 400 Hz
Frequency
Accuracy
(Temperature
Change)
Digital reference: ±0.01%, 10 to 50°C
Analog reference: ±0.5%, 25±10°C
Frequency
Setting
Resolution
Digital reference:
0.1 Hz (less than 100 Hz)/1 Hz (100 Hz or more)
Analog reference: 1/1000 of max. output frequency
Output
Frequency
Resolution
0.01 Hz
Overload
Capacity
150% rated output current for one minute
Frequency
Reference
Signal
0 to 10 VDC (20 k), 4 to 20 mA (250 ), 0 to 20 mA (250 ), fre-
quency setting potentiometer (Selectable)
Acceleration/
Deceleration
Time
0.0 to 999 s
(Acceleration/deceleration time are independently programmed.)
Braking Torque
Short-term average deceleration torque
*2
0.2 kW: 150%
0.4/0.75 kW: 100%
1.5 kW: 50%
2.2 kW or more: 20%
Continuous regenerative torque: Pyrex. 20%
V/f
Characteristics
Possible to program any V/f pattern
Protective Functions
Motor Overload
Protection
Electronic thermal overload relay
Instantaneous
Overcurrent
Motor coasts to a stop at approx. 200% of Inverter rated current
Overload Motor coasts to a stop after 1 minute at 150% of Inverter rated out-
put current
Overvoltage Motor coasts to a stop if DC bus voltage exceed 820 V
Undervoltage Stops when DC bus voltage is approx. 400 V or less
Voltage Class 400 V 3-phase
Model CIMR-
J7A
3-phase 40P2 40P4 40P7 41P5 42P2 43P0 43P7

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