a. Two options:
b. We offer PTCAL and PTCAH whose temperature point is as same as the
controller setting for over-temp alarm and over-temp trip. Over-temp alarm
PTC is PTC130, over-temp trip PTC is PTC150. PTC temperature point of
resistance mutation is fixed value could not be adjustable. If users need to
change the PTC temperature point, please make a note when ordering.
• PTCAL&PTCAH: Involved in controlling over-temp alarm and over-temp
trip signal output
• PTCAH: Involved in controlling over-temp trip signal output
C. PTC status query of over-temp alarm and trip (Function code 1006)
D. About PTC ordering
08
Normal display status
Note1: Good: PTC of over-temp trip is normal；
-OP-: PTC of over-temp trip is open circuit；
-OL-: PTC of over-temp trip is short circuit.
Note2: Good: PTC of over-temp alarm is normal；
-OP-: PTC of over-temp alarm is open circuit；
-OL-: PTC of over-temp alarm is short circuit
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