2-6 Inst Overcurrent
Range:
Function:
400%*
[80% - 600% FLC]
Sets the trip point for instantaneous overcurrent protection, as a percentage of motor full load
current.
2-7 Inst Ocrnt Delay
Range:
Function:
0 secs*
[0:00 - 1:00 (min:secs)]
Slows the MCD 500's response to overcurrent, avoiding trips due to momentary overcurrent events.
7.6.4 Frequency Trip
The MCD 500 monitors mains frequency throughout operation, and can be configured to trip is the frequency varies beyond a specified tolerance.
2-8 Frequency Check
Option:
Function:
Do not Check
Start Only
Start/Run
*
Run Only
Determines when the starter will monitor for a frequency trip.
2-9 Freq Variation
Option:
Function:
Selects the soft starter's tolerance for frequency variation.
NB!
Running a motor outside its specified frequency for long periods can cause dam-
age and premature failure.
±
2 Hz
±
5 Hz
*
±
10 Hz
±
15 Hz
2-10 Frequency Delay
Range:
Function:
1 sec*
[0:01 - 4:00 (min:sec)]
Slows the MCD 500's response to frequency disturbances, avoiding trips due to momentary fluctu-
ations.
NB!
If the mains frequency drops below 35 Hz or rises above 75 Hz, the starter will
trip immediately.
MCD 500 Operating Instruction
7 Programming
MG.17.K2.02 - VLT
®
is a registered Danfoss trademark
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