Interlocks, External control, Output – Ransburg RCS-100FP Fluid Pump Kit 70945 User Manual

Page 12

LN-9227-00

Fluid Pump Motor Speed Control Station - Installation

INTERLOCKS

The high voltage ON interlock is connected to
terminal strip TB3. The controller is designed to
accept either 115 VAC high voltage interlock, 24
VAC interlock, or 24 VDC interlock. These are
connected to TB3 as shown on the following
interlock wiring diagram.

Figure 2: Interlock Connections

EXTERNAL CONTROL

For model 70945-02, external control connec-
tions are made to TB2 terminal strip. The
potentiometer connects to TB2-1, 2, and 3, and
the OFF/ON controls to TB3 and RE1 as shown
in external wiring.

The Remote Control Station is approved as ex-
plosion proof and suitable for use in hazardous
areas classified as Class I, Division I, Groups C
and D.

Proper wiring practices MUST be

adhered to and MUST be suitable for the
location for which the remote station is
located. Refer to the National Electrical
Code, NFPA 70.

W A R N I N G

!!!!!

For model 70945-01, the speed adjust and OFF/
ON controls are wired internally. No other con-
nections are needed for these functions.

OUTPUT

Output connections to the DC pump drive are
made to TB1 terminals F+ and F- (to the motor
field connections F1 and F2 respectfully) and
TB1 terminals A1 and A2 (to the motor armature
connections A1 and A2 respectfully).

On earlier versions of the 70945, con-

troller, the motor armature outputs were
labeled as A- and A+. A1 should be con-
nected to TB1-A+ and A2 to TB1-A-. The
motor operating in the wrong direction is
an indication that the armature wires are
reversed.

*NOTE

Do NOT use external line switching to

start and stop the motor.

C A U T I O N

!!!!!