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56
Digistart IS User Guide
www.controltechniques.com
Issue: 4
8.8.5
Group 4 - Digital outputs
The Digistart IS has three programmable outputs, which can be used to signal different operating conditions to associated
equipment. Three additional outputs are available on the input/output expansion card.
No
Function
Range
Default
4A
Relay A Action
Off, Main Contactor, Run, Trip, Warning,
Low Current Flag, High Current Flag, Motor
Temp Flag, Input A Trip, Input B Trip, Motor
Overload, Current Imbalance, Underpower,
Overpower, Frequency, Ground Fault,
Heatsink Overtemp, Phase Loss, Motor
Thermistor, Changeover Contactor
Main Contactor
Selects the function of Relay A (normally open). Relay A is terminals COM1, RLO1.
Off
Relay A is not used.
Main Contactor
The relay closes when the Digistart IS receives a start command,
and remains closed as long as the motor is receiving voltage.
Run
The relay closes when the starter changes to run state.
Trip
The relay closes when the starter trips (see Pr
16A
to
16X
).
Warning
The relay closes when the starter issues a warning (see Pr
16A
to
16X
).
Low Current Flag
The relay closes when the low current flag activates (see Pr
7A
Low Current Flag
, while the motor is running).
High Current Flag
The relay closes when the high current flag activates (see Pr
7B
High Current Flag
, while the motor is running).
Motor Temp Flag
The relay closes when the motor temperature flag activates (see
Pr
7C
Motor Temperature Flag
).
Input A Trip
The relay closes when Input A activates to trip the soft starter.
Input B Trip
The relay closes when Input B activates to trip the soft starter.
Motor Overload
The relay closes when the starter trips on Motor Overload.
Current Imbalance
The relay closes when the starter trips on Current Imbalance.
Underpower
The relay closes when the starter trips on Underpower.
Overpower
The relay closes when the starter trips on Overpower.
Frequency
The relay closes when the starter trips on Frequency.
Ground Fault
The relay closes when the starter trips on Ground Fault.
Heatsink Overtemp
The relay closes when the starter trips on Heatsink
Overtemperature.
Phase Loss
The relay closes when the starter trips on Phase Loss.
Motor Thermistor
The relay closes when the starter trips on Motor Thermistor.
Changeover Contactor
The relay closes when the high rotor resistance current ramp has
reached full voltage, allowing use with a slip-ring motor.
No
Function
Range
Default
4B
Relay A On Delay
00:00 to 05:00 (minutes:seconds)
00:00
4C
Relay A Off Delay
Sets the delay for closing or re-opening Relay A.
No
Function
Range
Default
4D
Relay B Action
Off, Main Contactor, Run, Trip, Warning,
Low Current Flag, High Current Flag, Motor
Temp Flag, Input A Trip, Input B Trip, Motor
Overload, Current Imbalance, Underpower,
Overpower, Frequency, Ground Fault,
Heatsink Overtemp, Phase Loss, Motor
Thermistor, Changeover Contactor
Run
4E
Relay B On Delay
00:00 to 05:00 (minutes:seconds)
00:00
4F
Relay B Off Delay
See Pr
4A
to
4C
for details of parameter options.