Appendix A - Pecm Led Interpretation - Siemens Maxum Edition II Installation Manual

Appendix A - PECM LED Interpretation

The LEDs on the PECM board can help with troubleshooting problems. There are two sets of
LEDs: one on each side of the front board as shown in the diagram to the right. The bottom set
of three LEDs is the same as used on other boards. The left set is for the PECM software and
the right set is for the temperature controller software. Each will go through a separate display
on power up and normal operation. The top two sets of four LEDs each are for the operation of
each of the two temperature controllers on the front board. Heater 1 is on the left and heater 2
is on the right side of the board.
PECM LED Interpretation
Installation Manual
Installation Manual, 12/2019, 2000595 Rev 1
LEFT Heater Status
Heater 1 Air Pressure
Heater 1 Power Activate
Heater 1 Temp Limit
Heater 1 Overtemp
PECM Status
PECM LEDs
Normal
Fault
Warning
RIGHT Heater status
Heater 2 Air Pressure
Heater 2 Power Activate
Heater 2 Temp Limit
Heater 2 Overtemp
Normal Normal
Fault Fault
Warning Warning
A
Temperature
Controller
Status
49