5500 S
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4. Programming
4.1. User Interface
To program the control unit, use the membrane pad on the front of the unit.
Program settings are saved on non-volatile memory in the CPU. Settings are unaffected by
power down and reset function. Default values are stored and can be restored.
4.1.1
LED Indication
K1
K2
P/SV
BYPASS
PT100
40
rograMMing
LED Color
Green
Amber
Blue/amber
Amber
Red
Description
Contact K1 is energized
Contact K2 is energized
Blue: safe pressure
Amber: valve on
Bypass is ON
PT100 is in fault mode