Micromod MOD: Modcell 2050R Users Guide - Manual (Page 208)

IB-23C650
DIAGNOSTICS
conditions using the UP key.
Input Failure Messages
• [OPEN TC1 (2)] Open Thermocouple 1 (or 2) (upscale burnout)
• [HIGH TC1 (2)] Overtemperature Thermocouple 1 (or 2)
• [LOW TC1 (2)] Undertemperature Thermocouple 1 (or 2)
• [RTD1 (2) LO] Failed RTD1 (or 2), Low (active lead shorted against
another lead)
• [RTD1 (2) HI] Failed RTD1 (or 2), High (any one lead open)
• [CJC1 (2) BAD] Failed Cold Junction RTD 1 (or 2)
• [MA1 (2) LOW] Out of range low for 4-20 mA Input 1 (or 2)
• [MA1 (2) HIGH] Out of range high for 4-20 mA Input 1 (or 2)
• [V1 (2) LOW] Out of range low for Voltage Input 1 (or 2)
• [V1 (2) HIGH] Out of range high for Voltage Input 1 (or 2),
• [MV1 (2) LOW] Out of range low for mv Input 1 (or 2)
• [MV1 (2) HIGH] Out of range high for mv Input 1 (or 2)
NOTE
Turn off power to the unit before replacing controller or
repairing wiring. Failure to do so may cause a loss of
calibration.
Operational Failure Messages
Failures in the general operation of the instrument are indicated by the
following diagnostic messages:
• [POWER] [FAILED]
This is the first display to appear after power-up if the power-up message
was not suppressed in BASE CFG MENU. It indicates that the power has
been off due either to a normal shutdown or an accidental power failure.
Pressing any key clears this message and starts the operating display
sequence.
• [BUS INHB], [CMP ERB], [BUS ERR], [OVERCFGD]
These messages identify communication problems. They are described
in the Modbus Communications Supplement, IB-23C650M.
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