4 external thermal trip input (th1+, th1-) – Toshiba ETB003Z User Manual

Page 13

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E6581339⑤

12

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-

Detect condition

Movement

about under 70 ohm

Thermistor short broken detection

oh2

trip

about 70 - about 2.5k ohm

Normal value

―――

about 1.6k ohm

Thermistor fault reset

―――

about 3k ohm

Thermistor fault detection

oh2

trip

Parameter

Title

Function

Adjustment range

Default setting

f637

PTC thermal selection

0: Deselect
1: Select

0

TH1+

TH1-

PTC
thermistor

Expansion IO card option

P15

4.2k

Voltage

detection

circuit

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