Alarm Listing - Emerson Vilter PLC Operation Manual

Section 11 • Alarms, Trips, Status Information & Troubleshooting

Alarm Listing

The following table shows all possible alarms and trips and possible causes. Some alarms and trips are application
specifi c, and do not apply unless a specifi c option is selected.
To reset alarms or trips press the "Alarm Reset" Button on the overview screen. If the condition is cleared, the alarm
will reset. If the condition is not cleared, the alarm will remain active.
Alarm Message
(A001) Alarm:
(A002) Alarm: PLC to Central Comms
Faulted
(A003) Alarm: Blower 1 VFD Comms
Faulted
(A004) Alarm: Blower 2 VFD Comms
Faulted
(A005) Alarm: Blower 3 VFD Comms
Faulted
(A006) Alarm: Blower 4 VFD Comms
Faulted
(A007) Alarm:
(A008) Alarm:
(A009) Alarm:
(A010) Alarm: Low Suction Header
Pressure
(A011) Alarm: High Discharge
Header Pressure
(A012) Alarm: Aftercooler VFD Fault
(A013) Alarm: Aftercooler Fan
Starter Fault
(A014) Alarm:
(A015) Alarm: User Defi ned Alarm 1
(A016) Alarm: User Defi ned Alarm 2
(A017) Alarm: User Defi ned Alarm 3
(A018) Alarm: User Defi ned Alarm 4
(A019) Alarm: User Defi ned Alarm 5
11 – 2
Table 11-1. Alarm Listing
Cause(s)
Loss of Communication with DCS/
Central - Settable Communications
Watchdog Timer Expired. (Alarm
and Revert to Local Selected on
Communication Failure.)
Loss of Communication with Blower
1 VFD.
Loss of Communication with Blower
2 VFD.
Loss of Communication with Blower
3 VFD.
Loss of Communication with Blower
4 VFD.
Suction Header Pressure drops
below "Suction Pressure" Low Alarm
Setpoint
Suction Header Pressure rises above
"Discharge Pressure" High Alarm
Setpoint
Fault contact open on Aftercooler
VFD
Aftercooler Fan is commanded
to run, running confi rmation not
received.
User defi ned Alarm 1
User defi ned Alarm 2
User defi ned Alarm 3
User defi ned Alarm 4
User defi ned Alarm 5
Blower Package PLC Operation Manual •Vilter/Emerson • 35391BLP
Notes
Watchdog Active if Control by
Communications is selected
Active if monitoring Suction Header
Pressure
Active if monitoring Discharge
Header Pressure
If controlling a VFD type aftercooler
If controlling a step-type aftercooler
Message Defi ned in "Device Names"
Screens
Message Defi ned in "Device Names"
Screens
Message Defi ned in "Device Names"
Screens
Message Defi ned in "Device Names"
Screens
Message Defi ned in "Device Names"
Screens