Motor Set Speed; Actual Elevator Speed; Inverter Load; Actual Motor Speed - KEB COMBIVERT F5 Instruction Manual

Inverter Load

Motor Set Speed

Actual Motor Speed

Actual Elevator Speed

Diagnostic Parameters
Display of the actual inverter load in %. 100% equals rated load of the
inverter.
Displays the motor set speed in rpm, calculated from the system
data.
Displays the actual motor speed in rpm measured from the motor
encoder .
Actual motor speed should always be the same sign (polarity) as
LF.88 and within 20 rpm. Otherwise there is a problem with the
encoder, the encoder cable, or the setting of parameters LF.28.
i
To verify the encoder operation with induction motors, run the
elevator drive in open loop (LF.30=0), set the inspection speed
(LF43) to 50% of contract speed and run the car empty up. The
actual motor rpm value displayed in LF.89 should be nearly equal
to the value displayed in LF.88. If the value in LF.89 varies by
more than +/- 10 rpm or the value is greater or less than LF.88 by
more than 20 rpm, there is a problem with either the encoder or
the encoder cable.
Display of the car speed in ft/min; only when the encoder is con-
nected.
This is a calculated value. The car speed should always be verified
with an independent measuring device.
US
87