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15
AC30 series General Purpose I/O Option
Motor Thermistor (7004-01-00, 7004-02-00 and
7004-03-00)
The motor thermistor input provides a means of monitoring motor
temperature in order to protect the motor from a potentially damaging high
temperature.
By default the drive will trip if the motor exceeds a user-defined
temperature threshold thereby preventing the motor temperature from
rising further.
Terminal
Name Range
Description
X22
01
TH1
0 to
4.5kΩ
Connect motor thermistor between
these two terminals.
If thermistor is not required,
connect these two terminals
together, and ensure PTC
thermistor is selected.
02
TH2
Programming
Parameter Access
Value
Description
1184
Write
or
Read
NTC
PTC
KTY
Thermistor type.
Default = PTC
1004
Write
or
Read
0 to
4500Ω
Thermistor trip level.
Default = 1000Ω
PTC
Drive trips if thermistor
resistance exceeds this
trip level.
NTC
Drive trips if thermistor
resistance is less than
this trip level.
KTY
Drive trips if thermistor
resistance exceeds this
trip level.
1185
Read
only
0 to
4500Ω
Actual thermistor resistance