Omron E5AZ User Manual page 146

h.err
HB error
Meaning
Internal circuits are in error.
Action
First, turn the power OFF then back ON again. If the display remains the same, the E5AZ/E5EZ must be
repaired. If the display is restored, then a probable cause can be electrical noise affecting the control system.
Check for electrical noise.
Operation at error
Control output and control output functions turn OFF. An error message is displayed when "process value" or
"PV/SP" are displayed.
ffff
Current value exceeds
Meaning
This error is displayed when the heater current value exceeds "55.0 A".
Action
Control continues, allowing normal operation. An error message is displayed when "heater current value moni-
tor" is displayed.
Appendix
127