Download VARISPEED V7 USER'S MANUAL

Example for 200 V Class Motors
Cooling Effect
General-purpose
Effective when
operated at
50/60 Hz from
commercial
power supply
Torque Characteristics
60 s
Short-term
Continuous
rating
Torque
(%)
Electronic
Thermal Overload
An
error (motor overload protection)
occurs when
continuously
operated at 50/
60 Hz or less at
100% load.
50
Operation Frequency (Hz)
Base Frequency 60 Hz
(V/f for 50 Hz, 220 V Input Voltage)
For low-speed operation, torque
must be limited in order to stop motor temperature rise.
Inverter Motor
Effective even
when operated at low
speed (approx. 6 Hz)
60 s
Short-term
Continuous
rating
Torque
(%)
50
Operation Frequency (Hz)
Base Frequency 60 Hz
(V/f for 50 Hz, 220 V Input Voltage)
Use an Inverter motor for continuous
operation at low speed.
130
Electronic thermal overload
protection is
not activated
even for continuous operation
at 50/60 Hz or
less at a 100%
load.