Error Code Values Reported To The Plc; Figure 19 2500C-8-Tc Error Code Table - Control Technology 2500 Series Installation And Operation Manual

1.11 Error Code Values Reported to the PLC

The 'temperature sensor bad' code is reported to the PLC when either of the two
temperature sensors encapsulated in front panel connector goes bad. This is a rare
occurrence, but would yield code 32,761 if it does occur.
The math overflow code of 32,763 occurs when the thermocouple type, mV and SCALE
modes are chosen, and the units tries to report a value under –32,000.The following chart
summarizes the 2500C-8-TC error codes:
Error Code Error
32761 Bad Temperature
Sensor(s)
32763 Math Overflow
32764 EEPROM Error
32765 Channel Overrange
32766 Channel Underrange
2500C-8-TC Installation and Operation Guide
Comment; Corrective Action
A temperature sensor (s) in front panel
connector is faulty/defective; call CTI for
replacement 2500C-8-TC connector, P/N:
2500C-32F-CJC.
Low end range of mV/SCALE exceeded;
Check process to determine if input is actually
low. Determine if mV transmitter is defective.
EEPROM Storage Error
Input level is above normal input range (see
Figures 1.4-1.11 for each thermocouple type);
Check process to determine if input is actually
high or if the transmitter is defective.
Input level is above below input range (see
Figures 1.4-1.11 for each thermocouple type);
Check process to determine if input is actually
low or if the transmitter is defective.

Figure 19 2500C-8-TC Error Code Table

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