Repairs, Specifications – Banner Safety Mat Monitoring Modules User Manual

Page 13

Condition

Indicator Status

Possible Causes or Solution

Fault LED ON*

• Check for loose wiring.
• Actuate the mat to clear the fault.

Possible internal fault:

• Return to factory for repair or replacement.

Ch1 LED ON

Ch2 LED ON

All LEDs OFF

Possible fault in the machine control or wiring to the Module:

• Check input power connections or external fuses.
• Check connectors are properly seated.

Dim LEDs

Power LED dim:

• Check power supply capacity and load.

Other LEDs dim:

• May glow during power-up (normal).
• Check power supply load and capacity.

*Fault LED Flickers

This is normal while the Fault LED is ON.

MSCs do not energize

Power LED ON

Possible fault in machine control or an open circuit between machine
control and MSCs:

• Check continuity of safety outputs (e.g. between terminals 13 and

14).

• Check control wires and connectors.
• Check MSCs

Fault LED OFF

Ch1 LED ON

Ch2 LED ON

Repairs

CAUTION: Abuse of Module After Failure
If an internal fault has occurred and the Module will not reset, do not tap, strike, or otherwise attempt to
correct the fault by a physical impact to the housing. An internal relay may have failed in such a man-
ner that its replacement is required.
If the Module is not immediately replaced or repaired, multiple simultaneous failures may accumu-
late such that the safety function can not be guaranteed.

Do not attempt any repairs to the Module. It contains no field-replaceable components. Return it to the factory for warranty repair or
replacement: Contact Banner Factory Application Engineering at the address or the numbers listed on the back page. They will attempt to
troubleshoot the system from your description of the problem.
If they conclude a component is defective, they will issue a return merchandise authorization (RMA) number for your paperwork and give
you the proper shipping address. Pack the Module carefully. Damage that occurs in return shipping is not covered by warranty.

Specifications

Category

Specification

Supply Voltage and
Current

AI-A2: 115V ac (model SM-GA-5A) or 230V ac (model SM-HA-5A) ±15%, 50/60Hz
BI-B2: 11V dc – 27.6V dc
Connect the Safety Module only to a SELV (safety extra-low voltage, for circuits without earth ground) or a
PELV (protected extra-low voltage, for circuits with earth ground) power supply, according to EN IEC 60950,
NEC Class 2.

Power Consumption

Approx. 4W/7VA

SM-xA-5A Safety Mat Monitoring Modules

P/N 122364_Web
rev. C