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3.4 External thermal trip input (TH1+, TH1-)
By connecting the thermistor to TH1+ and TH1- terminal, when the thermistor value is
unusual, the inverter can be trip.
The resistor value
between TH1+ and TH1-
about under 70 ohm
about 70 - about 2.5k ohm
about 1.6k ohm
about 3k ohm
Parameter
Title
f637 PTC thermal selection
PTC
thermistor
Thermistor short broken detection
Normal value
Thermistor fault reset
Thermistor fault detection
Function
Expansion IO card option
P15
4.2k
TH1+
Voltage
detection
TH1-
Detect condition
Adjustment range
0: Deselect
1: Select
circuit
12
E6581339⑥
Movement
oh2 trip
―――
―――
oh2 trip
Default setting
0
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