Schneider Electric 840 USE 106 0 manual LED Display, Module, CHS 110

		Overview of Quantum Hot Standby
LED Display	The following illustration shows five status indicators on the face of each CHS 110
	module.
	140
	CHS 110 00
	HOT STANDBY
	Active
	Ready	Fault
	Run	Bal Low
	Pwr ok

Modbus Com Err

Modbus! Error A

Com Act Error B

Primary

Mem Prt Standby

The following table shows the five status indicators.

Indicator	Color	Message
Ready	Green	If steady, power is being supplied to the module and it has
		passed initial internal diagnostic tests. If blinking, module is
		trying to recover from an interface error.
Com Act	Green	If steady, CHS 110 modules are communicating. If blinking, an
		error has been detected.
Primary	Green	Module is Primary controller.
Com Err	Red	Module is retrying CHS communications or CHS
		communications failure has been detected.
Standby	Amber	If steady, module is Standby controller, and is ready to assume
		Primary role if needed. If blinking, program update is in
		progress.

Error messages are discussed in detail in Com Act Error Patterns, p. 209.

840 USE 106 00 January 2003 19