Specifications

Control Valves - SMARTLINK
®
MRV
www.maxoncorp.com
combustion systems for industry
Maxon reserves the right to alter specifications and data without prior notice.
© 2014 Copyright Maxon Corporation. All rights reserved.
10-30.7-67
E-i -3/14
50120624-001/
Control Interface Alarms / Faults
Alarm / Fault Code
(Code = CI #0-9
Lights ON)
Alarm / Fault Name
User Display
Message
Alarm / Fault Description and Corrective Action
4, 5
Memory
(Fault)
“FAULT: CI MEMORY”
Control Interface detected data corruption.
Reload commissioning data if stored in optional User Display. If a User Display was not pur-
chased, reset factory defaults and re-commission system using the Commissioning Table filled
out during initial commissioning. If alarm persists, replace Control Interface.
4, 6 Lock “ALARM: CI LOCK”
Control Interface is locked and Mode switch is in command entry (middle) position. A flashing
alarm light also indicates this condition. Move Mode switch on Control Interface to the RUN
position or unlock the unit by entering Command A-7 followed by the 4-digit passcode.
4, 5, 6 Processor Reset “ALARM: CI RESET”
Control Interface detected a reset due to improper software execution, high electrical noise,
improper shield connections, or electronics failure.
If alarm persists after checking for noise source, replace Control Interface.
4, 7
User-Initiated
Shutdown
(Fault)
“FAULT” CI U-
SHUTDOWN”
Control Interface user-initiated system shutdown occurred via User Display.
Cycle power to the system or momentarily provide a Remote Reset command to the Control
Interface.
4, 5, 7 Firing Rate Limit “ALARM: CI FR LIMIT”
Control Interface firing rate exceeds commissioned maximum “running” index.
Re-commission installed valves at position index #9 as described in pages 10-30.7-61 through
-63.