High Process Temperature; Low Suction Temperature; High Discharge Temperature - Emerson VILTER MicroVission Operation And Service Manual

Section 6 • Alarms and Trips
Warnings
Not Running (Idle)

High Process Temperature:

Below Messages will be displayed on Main Screen when Process Temperature value rises below configured setpoints.
Refer Figure 6- 1 for Alarm setpoints.
There are two different set of Alarm setpoints which will be active depending on Active Control Mode selected from
Compressor Control screen.
These safeties will be only active when Active Control Mode selected from Compressor Control is "Process
Temperature SP1" or "Process Temperature SP2".

Low Suction Temperature:

Below Messages will be displayed on Main Screen when Suction Temperature value drops below configured set-
points. Refer Figure 6- 2 for Alarm & Trip setpoints.
Low Suction
Temperature Warning
Suction Temperature
<= Low Suction
Temperature Alarm
Setpoint

High Discharge Temperature:

Below Messages will be displayed on Main Screen when Discharge Temperature value rises above configured set-
points. Refer Figure 6- 2 for Alarm & Trip setpoints.
High Discharge Temperature Alarm & High Discharge Temperature Trip safeties will be monitored only once High
Discharge Temp Bypass Timer is lapsed.
High Discharge
Temperature Warning
Discharge Temperature
>= High Discharge
Temperature Alarm
Setpoint
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.3
Inhibits
Pre-Start
Low Suction Temperature Inhibit
Suction Temperature <= Low
Suction Temperature Alarm
Setpoint
High Discharge Temperature
Inhibit
Discharge Temperature >= High
Discharge Temperature Alarm
Setpoint
Alarms
Running
High Process
Temperature Alarm
Process Temperature
>= High Process
Temperature Alarm
Setpoint 1 / Setpoint 2
Low Suction
Temperature Alarm
Suction Temperature
<= Low Suction
Temperature Alarm
Setpoint
High Discharge
Temperature Alarm
Discharge Temperature
>= High Discharge
Temperature Alarm
Setpoint
Trips
Running
Low Suction
Temperature Trip
Suction Temperature
<= Low Suction
Temperature Trip
Setpoint
High Discharge
Temperature Trip
Discharge Temperature
>= High Discharge
Temperature Trip
Setpoint
6 – 5