Emerson VSG & VSSG Troubleshooting Guide download pdf (Page 10)

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

Shutdown due to

Operational

Failure

Delayed Lockout Timers

WARNING: FOR THE FOLLOWING SHUTDOWNS, A DELAYED RESTART MAY OCCUR:

High Discharge Pressure Failure

High Compressor Discharge Temp Failure

High Package Outlet Temp Failure

High Oil Injection Temp Failure

Shutdown Value

Below Reset

Value?

1 min Delay

Have

There Been 3 Shutdowns of “Any

of the Above Failure Conditions”

in H2 Hours

Auto Restart if All Other Values

Are In Range

Lockout

Requires

Manual Restart

Has

It been *H1

Hours Since

Shutdown?

H1= Timer Set Between .5-6 Hours.

Default Value= .5 Hours

H2= Timer Set Between 4-100 Hours.

Minimum and Default Value= 4 Hours

H2 must be equal to or greater than 4 x H1

Yes

Shutdown Due

to Power Failure

1 min Delay

Have

There Been 3 Shutdowns

of This Same Condition

in H4 Hours

Auto Restart if All Other Values

Are In Range

Lockout

Requires

Manual Restart

Has

It been *H3

Hours Since

Shutdown?

H3= Timer Set Between .5-6 Hours.

Default Value= .5 Hours

H4= Timer Set Between 4-100 Hours.

Minimum and Default Value= 4 Hours

H4 must be equal to or greater than 4 x H3

Yes Yes

Yes

Power Re-

establishing

WARNING: INCASE OF A POWER FAILURE A DELAYED RESTART MAY OCCUR:

Was Compressor

Running During Power

Failure?

Operational Flow Charts

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 71 72

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Emerson VSG & VSSG Troubleshooting Guide Page 10

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