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All Rights Reserved
Multilink Inc.
580 Ternes Ln. | Elyria,OH 44035 | 440.366.6966 | www.gomultilink.com
Troubleshooting
Section 8: Troubleshooting
This troubleshooting guide has been designed to help you quickly locate and resolve common powering
problems. The table assumes normal operation and configuration of the SATS at any given time. If you still
cannot solve the problem, replace the SATS with a known, functional unit.
CAUTION
There are various fuses inside the SATS to protect against over current conditions. These items are not
field-serviceable. The enclosure cover shall not be removed while in operation. Repair must be done by
certified technicians. Additionally, when replacing the SATS when in use at a live intersection, use of law
enforcement may be required to direct traffic during maintenance.
Operating Conditions
Corrective Actions
No output voltage to load
• Verify wiring is correct to all SATS terminal strips. Tighten contacts.
• Verify the upstream AC utility line circuit breaker to CLOSED.
• Verify the UPS Input circuit breaker is closed, and voltage is available at
the input of the UPS.
• Verify the UPS is operating in Line mode, otherwise, inspect UPS for
output alarms or faults.
• Verify AC utility line voltage is present.
• If no audible relay closure is heard when applying AC utility line volt-
age, replace SATS.
Bypass Mode not operational
• Verify AC utility line voltage is present.
• Verify the LED illuminates when the switch is placed in Bypass Mode.
• If LED does not illuminate, replace SATS.
No outpute voltage at duplex outlet
• Verify the AC utility line circuit breaker to CLOSED.
• Verify AC utility line voltage is present.
• F8, 6Amp fuse failure. Replace fuse with 6Amp fuse.
No output voltage with Generator
• Verify wiring to the SATS GEN terminal strip is correct. Tighten contacts.
• Verify switch is in AUTO Mode.
• Verify generator AC output voltage is present.
MAINS/GEN Sense relays not reporting
• F2, F3 open. Replace fuses.
