51
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CLASSIC
®
800 Product Manual
Troubleshooting
1. LED Fault Indicator
The CLASSIC 800 is designed so that any error condition will be immediately detected and displayed as a FAULT
condition on the Display Panel.
•
The diagnostic circuit continuously monitors the operation of the heater, sensor elements, connecting
pathways and all aspects of the Electronics Module.
•
When in
FAULT MODE
:
•
Both relays will de-energize and remain de-energized
•
The 4-20mA signal will output high or low
•
See LED Fault Code section, for a visual list of diagnostic faults displayed on bar graph
•
The FAULT remains on, until the problem is corrected. Once fault is corrected, the fault light will turn
off, but only after a 300 second time delay to ensure fault does not return intermittently. Time delay is
adjustable through the Kayden RCM software.
•
The
4-20 mA
output can be programmed to revert to a value of either
3.0 mA
or
21 mA
to indicate
FAULT mode. For more information see
Section 2 “Installation Guidelines, View or Adjust the 4-20
mA Fault Mode Configuration”
.
•
All FAULT Codes are automatically recorded in the EVENT LOG. The EVENT LOG may be viewed in the
Kayden RCM Software.
•
If a sensor fault has been corrected (such as correcting faulty wiring), pressing SET and then RUN will
cause the CLASSIC to resume Run mode immediately.
2. LED Fault Codes
In the event a FAULT occurs, the CLASSIC enters Fault Mode and the Fault LED on the Display Panel is turned
on. In Fault Mode, the LED Bar Graph cycles every 7 seconds between showing the Fault Code, and showing the
Software Version and Modbus Node Address.
Fault Code
Software Version / Modbus Node Address
Fault Cycle
Example
(Cycles every
7 seconds)
Figure 36 - Fault Cycle Display Example