15
VersiStart i III
6.3
Control Voltage
Different models require control voltage to different terminals:
x
C1 (110~120 VAC) A5, A6
x
C1 (220~240 VAC) A4, A6
x
C2 (24 VAC/VDC)
A5, A6
6.4
Control Wiring
The VersiStart i III has three fixed inputs for remote control. These inputs should be controlled by contacts rated for low voltage, low
current operation (gold flash or similar).
1
A
B
A
B
C
A
B
C
C
2
3
C32
C31
C24
C23
C42
C41
0394
3.
D
C32
C31
C24
C23
C42
C41
C32
C31
C24
C23
C42
C41
1
Two-wire control
2
Three-wire control
3
Four-wire control
A
Start
B
Stop
C
Reset
CAUTION
The control inputs are powered by the soft starter. Do not apply external voltage to the control input terminals.
Cables to the control inputs must be segregated from mains voltage and motor cabling.
6.5
Relay Outputs
The VersiStart i III has three programmable relay outputs.
Operation of the programmable outputs is determined by the settings of parameters 7A~7I.
x
If assigned to Main Contactor, the output activates as soon as the soft starter receives a start command and remains active
while the soft starter is controlling the motor (until the motor starts a coast to stop, or until the end of a soft stop).
x
If assigned to Run, the output activates when the soft start is complete (when the starting current falls below 120% of the
programmed motor full load current) and remains closed until the beginning of a stop (either soft stop or coast to stop).
x
If assigned to a trip function, the output activates when a trip occurs.
x
If assigned to a flag, the output activates when the specified flag is active (parameters 7J~7L).
CAUTION
Some electronic contactor coils are not suitable for direct switching with PCB mount relays. Consult the contactor
manufacturer/supplier to confirm suitability.
6.6
Motor Thermistors
Motor thermistors can be connected directly to the VersiStart i III. The soft starter will trip when the resistance of the thermistor circuit
exceeds approximately 3.6 k
:
or falls below 20
:
.
If no motor thermistors are connected to the VersiStart i III thermistor input terminals 64, 65 must be open. If 64, 65 are shorted, the
VersiStart i III will trip.
The thermistor input is disabled by default, but activates automatically when a thermistor is detected. If thermistors have previously been
connected to the VersiStart i III but are no longer required, either:
x
connect a 1.2 k
:
resistor between 64, 65 or
x
reset the starter to factory defaults (refer to Load/Save Settings). If you wish to retain the starter’s configuration, save the
starter’s settings to a user set before resetting. Reload the settings after the thermistor input has been reset.
NOTE
The thermistor circuit should be run in screened cable and must be electrically isolated from earth and all other power and
control circuits.