Nidec Digistart D3 User Manual

94 Digistart D3: User Guide
Issue: G
Display
Possible cause/Suggested solution
Network communication
(between device and
network)
There is a network communication problem, or the network master may have sent a trip
command to the starter. Check the network for causes of communication inactivity.
Related Pr: 16M
No Flow
This is a name selected for a programmable input. See Input A trip.
Overpower
The motor has experienced a sharp rise in power. Causes can include a momentary overload
condition which has exceeded the adjustable delay time.
Related Pr: 5F, 6C, 16E
Parameter out of range
This trip is not adjustable.
• A parameter value is outside the valid range.
The keypad will indicate the first invalid parameter.
• An error occurred loading data from the EEPROM to RAM when the keypad powered up.
• The parameter set or values in the keypad do not match the parameters in the starter.
• "Load User Set" has been selected but no saved file is available.
Reset the fault. The starter will load the default settings. If the problem persists, contact your
local distributor.
Related Pr: None
Phase sequence
The phase sequence on the soft starter's input terminals (L1, L2, L3) is not valid.
Check the phase sequence on L1, L2, L3 and ensure the setting in Pr 5D is suitable for the
installation.
Related Pr: 5D
PLC
This is a name selected for a programmable input. See Input A trip.
Power loss
This trip is not adjustable.
The starter is not receiving mains supply on one or more phases when a Start Command is
given.
Check that the main contactor closes when a start command is given, and remains closed until
the end of a soft stop. Check the fuses. If testing the soft starter with a small motor, it must
draw at least 2% of its minimum FLC setting on each phase.
Related Pr: None
Pump Fault
This is a name selected for a programmable input. See Input A trip.
RTD/PT100 A
RTD/PT100 B~G
The RTD/PT100 set temperature has been exceeded and tripped the soft starter. Identify and
resolve the condition which caused the appropriate input to activate.
NOTE
PT100 B to PT100 G are applicable only if
a RTD/PT100 and Ground Fault
card is fitted.
Related Pr: 14A, 14B, 14C, 14D, 14E, 14F, 14G, 16Q ~ 16W
RTD/PT100 X Circt
Indicates that the indicated RTD/PT100 has short circuited. Check and resolve this condition.
Related Pr: None
Starter communication
(between device and soft
starter)
•
There is a problem with the connection between the soft starter and the optional
communications module. Remove and reinstall the module. If the problem persists,
contact your local distributor.
• There is an internal communications error within the soft starter. Contact your local
distributor.
Related Pr: 16L
Starter Disable
This is a name selected for a programmable input. See Input A trip.
Thermistor Cct (Thermistor
circuit)
The thermistor input has been enabled and:
• The resistance at the input has fallen below 20 Ω (the cold resistance of most thermistors
will be over this value) or
• A short circuit has occurred. Check and resolve this condition.
Related Pr: None
Time-overcurrent
The Digistart D3 is internally bypassed and has drawn high current during running. (The 10A
protection curve trip has been reached or the motor current has risen to 600% of the motor FLC
setting.)
Related Pr: None

Nidec Digistart D3 Specifications

General

Brand	Nidec
Model	Digistart D3
Category	Controller
Language	English