Emerson VSG Operation Manual page 64

Filter Inlet Pressure Fail –
This message will appear with the manifold pressure rises above 300 PSI or falls below 30" Hg.
Start Filter Diff Press Fail –
This message will appear if the Filter Differential pressure rises above the High Fltr Diff Press – Start
setpoint before the Filter Differential Pressure Safety Changeover timer times out.
Run Filter Diff Press Fail –
This message will appear if the Filter Differential pressure rises above the High Fltr Diff Press Run
setpoint after the Filter Differential Pressure Safety Changeover timer times out.
Maximum Amperage Fail –
This message will appear if the motor amperage rises above the Hi Motor Amps trip setpoint.
Motor Starter Aux Contact Fail –
This message will appear if the Motor Auxiliary contact fails to close before the Compressor Starter
Auxiliary Contact Bypass timer times out. Refer to wiring diagram.
Auxiliary Safety#1 Input Fail –
This message will appear when power is removed from the input module that is designated as "Aux-
iliary #1 Safety" (please refer to your wiring diagram).
Low Oil Separator Level Fail –
This message may appear when power is removed from the input module that is designated as "Low
Separator Oil Level Trip" (please refer to your wiring diagram). This safety has an associated delay.
The associated delay timer is the Low Oil Separator Level Bypass Timer. This safety will activate only
after the oil level has been low after the timer times out.
64
Safety Failure Message
VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL