Nexen Electronic Over Load Protection System Controller 964403 - Manual (Page 5)

5 FORM NO. L-20309-A-1099
OPS SETUP
1. Connect AC voltage ser vice (115 or 230VAC) to
terminal block J3 or the +12VDC voltage service to
Terminals 7 and 8 of terminal block J1 (See Figure 4).
NOTE
Step 2 is not necessary if the +12VDC option is used;
otherwise, proceed with Step 3.
2. Slide voltage selector switch SW4 to select proper
voltage (115 or 230VAC) (See Figure 4).
3. Set jumpers W1 and W2 to select 2 WIRE SENSOR (See
Figure 4).
The 2 WIRE SENSOR setting is for use with NAMUR
type proximity sensors such as the ones used in Nexen’s
OPS equipped clutches. The 3 WIRE SENSOR setting
is for use with sinking current output type proximity
sensors and is not used with Nexen’s OPS equipped
clutches.
4. Set jumper W3 to select the desired sensitivity (See
Figure 4).
Sensitivity selection allows some control over how much
slip occurs before the clutch disengages. It is
recommended to start with the setting at 2 which is the
most sensitive. If nuisance disengagements occur, try
setting the sensitivity to 4 or 8. Larger numbers allow
more slip.
EXTERNAL ALARM OR INDICATOR CONNECTION
The OPS controller has relay (K2) available to operate
external alarms or indicators. K2 is a single pole double
throw relay, (See Figure 3 for connection information and
SPECIFICATIONS for contact rating). K2 is able to
complete or break an AC or DC circuit but it can not source
power to an external device. When using the enclosed
version of the OPS controller, route the external alarm or
indicator’s wires or cable through the top knock-out holes
and secure to housing with customer supplied wire clamp
(See Figures 5 and 6).
K2
K2
Connections
FIGURE 5
Knock-out
Hole
FIGURE 6