Revision 1.2a
Page 20 of 25
Warning
Please Note
The specifications of the product detailed on this
Set-Up Guide may change without notice. RDM
Ltd. shall not be liable for errors or for incidental
or consequential damages, directly and indirectly,
in connection with the furnishing, performance or
misuse of this product or document.
Ensure that all power is
switched off before
installing or maintaining
this product
Mercury 2 & Intuitive Mercury EPR Stepper Installation
Guide
www.resourcedm.com
Alarm Messages
The following alarms and messages can appear on the Mercury display.
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
Type # (index)
Alarm text
Type # (index)
Missed defrost
15
Product under temperature
9
Plant Fault 1
3
Person Trapped
1
Case over temperature
4
Plant Fault 2
3
Case under temperature
5
Monitor Probe OT
12
Probe 1,2,3,4,5 or 6 Faulty
6
Case Off
29
Door Left Open
2
Remote evap temperature
6
Product over temperature
8
IO Brd evap temperature
6
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
O
C (-18
O
F) to +10
O
C (+18
O
F) and on a
channel basis. Example C1 = Probe 1.
Display
Message
System status
Display
Message
System status
Ft
Control Fault
FAnS ONLy
Controller in Fans Only
Prb1
Probe 1 Fault
LitS ONLy
Controller in Lights Only
Prb2
Probe 2 Fault
CASE OFF
Controller in Case Off
Prb3
Probe 3 Fault
Ot
Over Temperature Alarm
Prb4
Probe 4 Fault
Ut
Under Temperature Alarm
Prb5
Probe 5 Fault
door
Door Open Alarm
Prb6
Probe 6 Fault
TrAP
Person Trapped Alarm
rEC
Control State in Recovery
PLnt
Plant Fault
dEF
Control Sate in Defrost
LgOt
Log Probe Over Temperature
AL
Control State in Alarm
LgUt
Log Probe Under Temperature
