11
CD-20SFA Sample Probe Controller
Problem
Probable Cause
Recommended Action
Motor does not run and
the current limit LED is off.
Input power not on or connected backwards.
Check wiring of 1TB-1 and
1TB-2 on control card.
Fuse F1 or F2 open.
Check fuse continuity.
Open circuit to motor armature.
Check wiring of 2TB-1 and
2TB-2 on power board.
CD-20SFA control failure.
Return to factory for
replacement of control card.
No pulses of proper amplitude at 1TB-5 to
1TB-6.
Verify the pulse input signal is
present.
Motor continues to run.
The PROX (“Hold”) LED
never comes on or blinks
on and off.
Broken or open proximity switch wire.
Check wiring of 2TB-3 and
2TB-4.
The proximity switch is not sensing the high
points of the cam.
Check proximity switch and
cam alignment.
CD-20SFA control failure (power supply
board).
Return to factory for
replacement of CD-20SFA
motor control assembly.
Factory Repairs
Important The UL Listing mark applies to the CD Series controller in its original factory condition.
To maintain certification, repairs must be performed by a UL-authorized Cameron facility.
Attempts to modify the product at any other location will make the certification invalid.
To return a product for repair, contact Cameron to request an Return to Manufacturer Authorization (RMA)
form and shipping instructions.
Phone: 1-800-654-3760; 281-582-9500 Fax: 281-582-9599
Email: SupportUSA.Jiskoot@c-a-m.com
Return shipments should be addressed to:
Cameron
Measurement Systems Division Service Department
14450 John F. Kennedy Blvd.
Houston, TX 77032
