Section 7-Test Procedure; Section 8-Trouble-Shooting Faults - Omron MC3 Series Installation And Operating Manual

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OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
P
ROCEDURE
T
E R F O R M I N G E S T
The test procedure given in Appendix A must be performed by a qualified
person at installation and after any maintenance, adjustment, or modification
to the presence sensing mats, the MC3 controller or the machine and machine
control circuitry. Testing ensures that the mats, MC3 controller, machine and
machine control circuitry work properly to stop the machine. Failure to test
properly could result in serious injury to personnel.
-
SHOOTING
Symptom
No indicators lit.
Possible Solutions
No power to the controller. Check 24VDC power supply and its connections to
Y1/Y2. Also see earth discussion in Section 5.2.4 "Earth Considerations".
Symptom
MAT CLEAR indicator cannot be made to light.
Possible Solutions
1. Mat wired improperly. Check connections.
2. Mat wire broken. Replace mat.
3. Mat is shorted. Is there something on the sensing area? Is the surface
deformed?
Symptom
Cannot start in START/RESTART INTERLOCK mode.
P
R O C E D U R E
F
AULTS
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E S T R O C E D U R E
Performing Test Procedure
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©OSTI 0411 PN99307-0010 Rev. D
Original Instructions