Cameron CLIF MOCK CD-20SFA, Руководство пользователя

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CD-20SFA Sample Probe Controller
The CD-20SFA motor control assembly (Figure 1.2) consists of a control card and power board mounted to a
ring, which in turn, is mounted to the back of the CD-20SFA gear motor. All field connections are to terminal
block 1TB on the control card. The motor and proximity switch connections are made at the factory to
terminal block 2TB on the power board .
CD20 Power Board
(2TB)
CD20 Control Card
(1TB)
Figure 1.2—CD-20SFA motor control assembly
How It Works
When an input pulse from an external pulse source is received, a command is output to rotate the motor.
Armature feedback controls the speed of the motor at about 12 rpm and current feedback limits motor current
to 3 amperes.
The pulse input be closed for at least 5 msec to produce a “start” pulse. An electronic square wave input must
have an amplitude of 12VDC.
The proximity switch input amplifier provides the signal to stop the motor. Two LEDs installed on the
controller card allow the user to test the controller’s operation. The I-LIMIT LED is on when the drive is in
current limit, which is normal during acceleration.The PROX (“Hold”) LED is on when the motor is stopped.
Field wiring instructions are provided in
Section 2—Installation and Wiring, page 7 .
Hazardous Location Safety Compliance
Assemblies designed for 24VDC, 115VAC and 230VAC input power are UL-listed in the US and Canada for
Class I Groups C and D Hazardous Locations.