Honeywell UDC2800 User Manual

259
Lower Display Reason for Failure How to Correct the Problem
Calibration Test
Error
Calibration test failed at start
up.
1. Run through STATUS check to
determine the reason for the
failure.
2. Restore factory settings. See
Restoring Factory Configuration
for more information.
3. Power cycle the instrument. If
the message reappears, replace
the instrument.
Configuration
Error
It appears when one of the
following conditions is
happened:
l
PV low limit is > PV high limit
l
SP low limit is > SP high limit
l
Output low limit > Output
high limit
Check the configuration for each
item and reconfigure if necessary.
Config Test
Error
Calculated checksum is
mismatched with the checksum
in EEPROM.
Restore the instrument.
Failsafe This error message shows
whenever the controller goes
into a failsafe mode of
operation. This will happen if:
l
RAM test failed
l
Configuration test failed
l
Calibration test failed
l
Burnout is configured for
none and the input failed.
1. Run through STATUS check to
determine the reason for the
failure.
2. Press the Setup and Increment
key until Status appears.
3. Press the Function key to see
whether the tests pass or fail,
then run through the Status
codes a second time to see if
the error cleared.
Input 1 Range Input 1 out of range. The
1. Make sure the range and
Chapter 8 - Troubleshooting/Service

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X