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Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide
Alarm Messages
The following alarms and messages can appear on the Mercury display.
Display
Message
Ft
Prb1
Prb2
Prb3
Prb4
Prb5
Prb6
rEC
dEF
AL
Network Alarms
The table below shows the text and associated type number that is sent to the system "front end". The type number is normally used to
provide different alarm actions.
Alarm text
Missed defrost
Plant Fault 1
Case over temperature
Case under temperature
Probe 1,2,3,4,5 or 6 Faulty
Door Left Open
Product over temperature
Modifying controller states
During normal operation you can change the following states from the function menu
Fans Only "FAnS"
Selecting the Fans Only option will put the controller into the Fans Only state if the current state is not Fans Only. If the current state is
Fans Only then the controller will change to the Normal state. Selecting this option will exit the setup menu automatically. The display will
show "FAnS OnLy"
If a remote display with key switch is being used, this function can be invoked by turning the key switch to the fans only position (90
degrees clockwise) with parameter P85 set to "fans"
Case Off "CASE"
Selecting the Case Off option will put the controller into the Case Off state if the current state is not Case Off. If the current state is Case
Off then the controller will change to the Normal state. Selecting this option will exit the setup menu automatically. The display will show
"CASE OFF". An alarm is generated, fixed delay of 1 minute, when the controller is placed into the Case Off state.
If a remote display with key switch is being used, this function can be invoked by turning the key switch to the case-off position.
(Clockwise 90 degrees) with parameter P85 set to "case".
Lights Only "LitS"
Selecting the Lights Only option will put the controller into the Lights Only state if the current state is not Lights Only. If the current state is
Lights Only then the controller will change to the Normal state. Selecting this option will exit the setup menu automatically. The display
will show "LitS OnLy"
Note. When lights are being used in "Remote" mode with a timing channel: -
If the controller goes offline, the lights are turned ON after a delay of 5 minutes. The lights will stay on until the controller comes back on-
line where they will revert to the state of the timing channel being used.
Probe Offset
This feature allows each probe value to be modified by an "offset". Offset values are from -10
channel basis. Example C1 = Probe 1.
Warning
Ensure that all power is
switched off before
installing or maintaining
this product
Please Note
System status
Control Fault
Probe 1 Fault
Probe 2 Fault
Probe 3 Fault
Probe 4 Fault
Probe 5 Fault
Probe 6 Fault
Control State in Recovery
Control Sate in Defrost
Control State in Alarm
Type # (index)
15
3
4
5
6
2
8
Display
System status
Message
FAnS ONLy
Controller in Fans Only
LitS ONLy
Controller in Lights Only
CASE OFF
Controller in Case Off
Ot
Over Temperature Alarm
Ut
Under Temperature Alarm
door
Door Open Alarm
TrAP
Person Trapped Alarm
PLnt
Plant Fault
LgOt
Log Probe Over Temperature
LgUt
Log Probe Under Temperature
Alarm text
Product under temperature
Person Trapped
Plant Fault 2
Monitor Probe OT
Case Off
Remote evap temperature
IO Brd evap temperature
Revision 1.2a
Type # (index)
9
1
3
12
29
6
6
O
O
O
O
C (-18
F) to +10
C (+18
F) and on a
Page 20 of 25
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