Manual

Publication GMSI10-UM015B-EN-E - June 2011
Installing the XM Electronic Overspeed Detection System 43
Channel 1 and Channel 2 Indicator
Startup (Start) Indicator
Relay Indicators
Color State Description
No color Off • Normal operation within alarm limits on the XM-220
channel.
• No power applied to the module, look at XM-220
Module Status LED.
Yellow Solid An alert level alarm condition exists on the channel
(and no transducer fault, tachometer fault, or danger
level alarm condition exists).
Flashing Tachometer fault (no transducer fault) condition exists
on the XM-220 channel.
Red Solid A danger level alarm condition exists on the XM-220
channel (and no transducer fault or tachometer fault
condition exists).
Flashing A transducer fault condition exists on the XM-220
channel.
Color State Description
Yellow Off Startup period is not in effect.
Solid Startup period is in effect.
• XM-220 module may be inhibiting the Tach Fault
alarm status.
• XM-220 module may be monitoring for locked rotor
conditions.
Color State Description
Red Off On-board relay is not activated.
Solid On-board relay is activated.