24 • Technical Data
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4.7 Control Connections Description
Refer to
Figure 13 page 29
Indication Description Remarks
Terminal 1 Control voltage - phase (positive –
for DC control)
The control voltage operates the electronic circuitry
and the auxiliary relay that controls the firing relay
Terminal 3 Control voltage - neutral (return –
for DC control)
The available control voltages are:
115V for 115V +10%/ -15% 50/60Hz
230V for 230V +10%/ -15% 50/60Hz
24VDC for 24VDC +10%/ -15% DC
110VDC for 110V +10%/ -15% DC
125VDC for 125V +10%/ -15% DC
220VDC for 220V +10%/ -15% DC
Note:
It is recommended that terminals 1-3 be
continuously connected to the control voltage.
Terminal 2 Firing control An internal relay connects the control voltage from
terminal 1 to terminal 2 when firing is required
during Soft Start and Soft Stop. Typically external
relay controlled by this terminal connect the firing
transformer which feed the firing system.
Terminal 4 Input – STOP command.
Input from a N.C. contact
To stop the motor, disconnect
Control Input voltage from
terminal 4 for at least 250mSec.
(no SOFT STOP)
Control Input voltage (STOP, SOFT STOP,
START, terminal inputs 7 and 8) can be the same
as Control Supply (terminals 1, 3) or voltage from
a different source.
The Control Inputs are opto-coupled and isolated
from the microprocessor circuitry.
Terminal 5 Input – SOFT STOP command.
Input from a N.C. contact
To SOFT STOP the motor
disconnect Control Input voltage
from terminal 5 for at least
250mS
Note:
If SOFT STOP is not required,
connect a jumper between
terminals 4 and 5.
Control Input voltages available:
115V for 115V +10%/ -15% 50/60Hz
230V for 230V +10%/ -15% 50/60Hz
110VDC for 110V +10%/ -15% DC
125VDC for 110V +10%/ -15% DC
220VDC for 220V +10%/ -15% DC
Terminal 6 Input – START command.
Input from a N.O. contact.
To SOFT START the motor,
connect Control Input voltage to
terminal 6 for at least 500mSec.
Notes:
Motor will start only if STOP
(terminal 4) and SOFT STOP
(terminal 5) terminals are
connected to Control Input
voltage.
To reset a fault the START
command must be removed.
(except for UNDERCURRENT
protection)
The soft starter ignores start
within 3 seconds after stop. Wait
at least 3 seconds before
restarting.
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