Emerson VSG & VSSG Troubleshooting Guide download pdf (Page 64)

VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL

Safety Failure Message

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.

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Emerson VSG & VSSG Troubleshooting Guide Page 64