ETA Systems ETA-20SH Handbuch - Seite 11

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TROUBLESHOOTING THE ECM MODULE AS A STANDALONE UNIT

Note: All troubleshooting should be done by a certified electrician.

Issue 1: Incoming AC LED is not illuminated.

Possible Cause #1:

Incoming AC Mains circuit breaker has tripped due to excessive load.

Action Needed: Check the AC outlet that the ECM is plugged into for 120V AC voltage. If no voltage is present, check to see if

the AC outlet is on a GFI and check to see if it was tripped. If it has not been tripped trace the AC Mains outlet

back to the electrical panel and check the AC Mains breaker to see if it is tripped.

Possible Cause #2: AC Mains power is ok (120V), internal 20A (ETA-ECM20, ETA-ECM20M, ETA-20SH) Slow Blow fuse is blown.

Action Needed: Open ECM unit and replace the fuse with a Slow Blow type.

Issue 2: AC Fault LED is Flashing.

Possible Cause: A lthough the Clamping Suppression circuit virtually assures protection from most transient voltage spikes and

surges, nature has a way of occasionally creating electrical forces that are beyond the capabilities of any device

to absorb without some degree of damage. In the rare instance that this occurs, the clamping circuit can be

damaged during the suppression.

Action Needed: The unit will need to be repaired or replaced. It is important to have all equipment that was connected to

that ETA-20SH Module be inspected for proper operation. Note: The unit will still operate but no AC Spike or

Suppression protection will be available.

Issue 3: ECM Active LED is not illuminated.

Possible Cause: Slide switch is not set to Manual ON.

Issue 4: Unit is set to External Trigger, the incoming AC LED is illuminated but the Active LED is not illuminated.

Possible Cause #1:

External Switch is not connected across the "D" and "+" terminals.

Possible Cause #2:

External DCV is not connected across the "+" and "G" terminals.

Possible Cause #3:

External DCV voltage polarity is not correct across the "+" and "G" terminals.

Possible Cause #4:

External DCV voltage is too low to activate the trigger circuit. Must be a minimum of 5VDC.

ETA-20SH

AC Power Conditioning & Suppression Module

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: 800-321-6699 • Fax: 800-996-3821

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Specifications are subject to change without notice.

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