Nexen Electronic Over Load Protection System Controller 964403 - Manual (Page 2)

2 FORM NO. L-20309-A-1099
INTRODUCTION
The Nexen Overload Protection System (OPS) protects
Nexen friction clutches from damage by detecting plate
slippage during excessive loading conditions. An OPS will
detect slippage between the input and output plates and
disengage the clutch automatically. Although the OPS
controller can detect plate slippage, it does not control the
amount of torque transmitted by the clutch. Torque transmitted
by the clutch is a function of the clutch used and the air
pressure supplied.
The OPS controller is offered with a NEMA-12 enclosure or
as a chassis-mount for installations in cabinets, consoles, or
enclosures. This controller is intended to be mounted remote
from the clutch and near operator work stations. Lighted
SAFETY PRECAUTIONS
DANGER
The “Activate Controller” push button does not disconnect the power source from the OPS controller. If the controller
is supplied with 115 or 230VAC, this supply must be disconnected at its source before opening the enclosure cover
or servicing the printed circuit board. Failure to do so can result in severe injury or death.
Before working on a Nexen OPS equipped clutch, deactivate the OPS controller by using the “Activate Controller”
push button.
If a lockout/tagout is required, lockout/tagout the input power source (+12VDC or 115/230VAC) for the OPS controller.
push buttons provide for at-a-glance status of the clutch’s
condition and for its manual engagement and
disengagement.
Used with the Nexen’s OPS equipped FMCE family, the OPS
provides for easy connection between the controller and
clutch. One cable plugged into the clutch is all that is required
to connect the two components.
The OPS controller can be powered from +12VDC, 115VAC
or 230VAC in order to work within a variety of industrial
environments. Furthermore, the OPS controller can operate
external alarms or indicators to provide status information to
other remote panels or controllers.