Troubleshooting the controllers - PEAK - PK-IOM5711-0 - PK-IOM5731-0 - Input/output controller - PEAK IOM5711 - PEAK IOM5731

PEAK IOM57 Input/Output Modules Installation Guide

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Observe the status LEDs on the front of the controller and see Table 1 to troubleshoot the controller.

Table 1. Status LEDs and descriptions of LED states
LED label LED color Normal LED state Description of LED state
POWER Green On steady Off steady = No supply power or the controller’s polyswitch/resettable fuse is open. Check output wiring for short circuits and cycle power to controller.

On steady = Power connected

FAULT Red Off steady Off steady = No faults

On steady = Device fault; no application loaded; Main code download required, if controller is in Boot mode, or a firmware mismatch exists between the controller and the ZFR1811 Wireless Field Bus Router.

Blink - 2 Hz = Download or Startup in progress, not ready for normal operation

SA/FC BUS Green Blink - 2 Hz Blink - 2 Hz = Data transmission (normal communication)

Off Steady = No data transmission (N/A - auto baud not supported)

On Steady = Communication lost, waiting to join communication ring

EOL Amber Off (Except on terminating devices) On steady = EOL switch in ON position

Off steady = EOL switch in Off position

RELAY Amber, Green On steady green

Off steady

On steady green = Relay switch is set to AUTO, and relay output is active ON

On steady amber = Relay switch is set to OVERRIDE ON, and relay output is active ON

Off steady = Relay switch is set to either AUTO or OFF and relay output is OFF