KB Electronics KBPW-240D User Manual

Page 17

(jumper J3 set to “TCL” position). The control can be reset by either setting the start/stop
switch to “START” position or by disconnecting and reconnecting the AC line. If the over-
load condition still exists when the control is restarted or AC line reapplied, the OL LED
will illuminate again. If the OL LED remains illuminated during control operation, a fault
condition may exist. Possible causes for this condition are as follows:

• Motor is overloaded. Check motor current. If the motor is a shunt wound type, the field

may be open or not receiving proper voltage.

• Motor may be defective. Check motor for shorts or grounds.

• CL may be set too low. Check position of CL trimpot and setting of jumper J2.

Note: In some applications, especially those requiring the motor to cycle on and
off, or from one speed to another, or from stop to high speeds, the OL LED may
blink, indicating a transient overload. This may be a normal condition for the appli-
cation.

OPTIONAL ACCESSORIES
Complete instructions and connection diagrams are supplied with all accessories to facilitate
installation.

A. On/Off AC Line Switch (P/N 9341) – Disconnects the AC line. Mounts on the enclosure

cover and is supplied with a switch seal to maintain watertight integrity.

B. FWD-BRK-REV Switch (P/N 9339) – Provides motor reversing and dynamic braking.

This switch is equipped with a center off hesitation mechanism, which assures that the
motor is fully stopped before it can be reversed. Mounts on the enclosure cover and is
supplied with a switch seal to maintain watertight integrity.

C. Run-Stop-Jog Switch (P/N 9340) – Selects speed setting from either main potentiome-

ter or JOG trimpot. Mounts on the enclosure cover and is supplied with a switch seal to
maintain watertight integrity.

D. Signal Isolator KBSI-240D (P/N 9431) – Provides isolation from non-isolated signal

sources. Mounts on the inside of the enclosure cover.

E. Auto/Manual Switch (P/N 9377) – When used with the KBSI-240D (P/N 9431), it selects

either an isolated signal from the KBSI-240D or from the main speed potentiometer.
Mounts on the enclosure cover and is supplied with a switch seal to maintain watertight
integrity.

F. Anti-Plug Reversing Module APRM-PC (P/N 9378A) – Provides electronic braking and

reversing. Mounts on the inside of the enclosure cover.

Note: For use with this control, the APRM-PC must be Revision A or newer.

G. KBRF-200A RFI Filter (P/N 9945C) – Provides RFI and EMI suppression. Meets CE

directives.