Digistart D3: User Guide
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Issue: G
6D – Reserved
This parameter is reserved for internal use.
6E – Reserved
This parameter is reserved for internal use.
6F – Frequency Delay
Range:
0:00 - 4:00 (minutes:seconds)
Default:
1 second
Description:
Slows the Digistart D3's response to frequency disturbances, avoiding trips due to momentary
fluctuations.
6G – Restart Delay
Range:
00:01 - 60:00 (minutes:seconds)
Default:
10 seconds
Description:
The Digistart D3 can be configured to force a delay between the end of a stop and the beginning of
the next start. During the restart delay period, the display shows the time remaining before another
start can be attempted.
NOTE
The restart delay is measured from the end of each stop. Changes to the restart delay setting take effect
after the next stop.
6H – Ground Fault Delay
Range:
0:01 - 4:00 (minutes:seconds)
Default:
3 seconds
Description:
Slows the Digistart D3's response to ground fault variation, avoiding trips due to momentary
fluctuations.
NOTE
Ground fault protection is only available if the RTD/PT100 and ground fault protection card is fitted.
8.8.8 Group 7 - Set Points
7A – Low Current Flag
The Digistart D3 has low and high current flags to give early warning of abnormal operation. The current flags can be
configured to indicate an abnormal current level during operation, between the normal operating level and the
undercurrent or instantaneous overcurrent trip levels. The flags can signal the situation to external equipment via one
of the programmable outputs.
The flags clear when the current returns within the normal operating range by 10% of the programmed flag value.
Range:
1% - 100% FLC
Default:
50%
Description:
Sets the level at which the low current flag operates, as a percentage of motor full load current.
7B – High Current Flag
Range:
50% - 600% FLC
Default:
100%
Description:
Sets the level at which the high current flag operates, as a percentage of motor full load current.
7C – Motor Temperature Flag
The Digistart D3 has a motor temperature flag to give early warning of abnormal operation. The flag can indicate that
the motor is operating above its normal operating temperature but lower than the overload limit. The flag can signal
the situation to external equipment via one of the programmable outputs.
Range:
0% - 160%
Default:
80%
Description:
Sets the level at which the motor temperature flag operates, as a percentage of the motor's thermal
capacity.
7D – Mains Reference Voltage
Range:
100 – 690 V
Default:
400 V
Description:
Sets the nominal mains voltage for the keypad's monitoring functions. This is used to calculate
motor kilowatts and kilovolt amperes (kVA) but does not affect the Digistart D3's motor control or
protection.
