Electronic Motor Overload Current - KEB COMBIVERT F5 Instruction Manual

Parameter Description - Motor Data
i
The following parameters configure the COMBIVERT Elevator Drive to the particular
motor. Correct adjustment of these parameters is critical for proper operation of the
system. Depending on the mode of operation the units and or range of acceptable
values may change. Parameters LF10 through LF.19 have dual functions depending
on the type of motor.
For induction motor configuration modes the parameter
information will be indicated with the symbol
For synchronous permanent magnet motors, configuration mode
the parameter info will be indicated with the symbol
Electronic
motor overload
current
80
This parameter sets the current threshold in amps above which the
IM
Elevator drive activates the motor overload function.
Unit:
Value range:
Default setting:
Adjustment value:
For PM motors the current threshold for electronic motor protection
PM
is set equal to the rated motor current in LF.12. Some motors must
be protected from long term peak current to prevent damage to the
motor windings. This parameter is then used to limit the peak current
to the motor. If the motor current exceeds this value for longer than
3.0 seconds, the drive will automatically trigger the error E.OH2 and
shut down operation.
When adjusting the rated motor current in LF.12, this value is
automatically set to 3 times the value of LF.12. After setting LF.12,
this parameter can then be adjusted based on the max. current
allowed by the motor manufacturer.
Unit:
Value range:
Default setting:
Adjustment value:

If this parameter is set too low, it may interfere with operation
of the elevator, resulting in shut downs.
IM
ampere
1.0...1.1 x drive rated current
8.0A
in accordance with motor nameplate
ampere
1.0... drive peak current
3 times LF.12
in accordance with the motor
PM