EV Inverter Operating Manual
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TECO
– Westinghouse Motor Company 40
F45 Motor rated frequency : (Hz)
F46 Motor rated power : (kW)
F47 Motor rated speed : (RPM) : F47 X 10= Motor rated speed
F48 Torque boost gain (Vector mode), C14=000 (Control mode setting)
Performance: If the motor load is determined to be excessive, increase the output torque.
The inverter will output the value of B and C voltage points according the C15 V/F pattern setting.
‗B‘ = Parameter C20 Value and ‗C‘ = Parameter C22 Value. The starting torque will be raised as shown.
•
Operating frequency range: 0 - Motor rated frequency
• When the motor output torque is not sufficient, increase the value of F48.
• When the motor is erratic or vibrates, decrease
the value of F48.
• The maximum output torque limit of the inverter is the current rating.
• If increasing the value of F48 results in excessive output current, then increase the value of
F49 at the same time. (See Fig. 11.9)
F49 Slip compensation gain (vector mode), C14=000 (Control mode setting)
Performance: If the motor load is excessive,
increase
the slip compensation.
(Load current) (Compensation gain)
B
C
100%
Voltage
F48
=
1
2.5/3.0
50/60
Hz
ΔF
slip
≒
I
Gain
Fig. 11.8 V / f curve with torque boost
Summary of Contents for EV INVERTER Series
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