4-57
4-2 Function Mode
4
Functions
•You can also reset an Inverter trip by pressing the STOP/RESET key on the Digital Operator.
•In reset selection C102, you can select alarm reset timing and either enable/disable in normal
operation.
•For the RS terminal, only NO contact is available.
Thermistor Trip Function
This function protects the motor by tripping with the built-in thermistor detecting a temperature rise.
•Allocate 19 (PTC) to multi-function input 5 (C005). This cannot be used with other multi-function
terminals. (Use a thermistor with the PTC characteristics.)
•Trip level is fixed at 3 kΩ ±10% max. For how to connect the thermistor, refer to "Functions and
Connections of the Control Circuit Terminals" (page 2-23).
Parameter No. Function name Data Default setting Unit
C102 Reset selection
00: Trip reset at power-on (example 1)
Enabled during normal operation (shuts
off output)
00 ⎯
01: Trip reset at power-off (example 2)
Enabled during normal operation (shuts
off output)
02: Trip reset at power-on (example 1)
Disabled during normal operation (trip
reset only)
(Example 1)
RS
Alarm
ON
OFF
ON
OFF
(Example 2)
RS
Alarm
ON
OFF
ON
OFF
Data Symbol Function name Status Description
19 PTC Thermistor input
Connected
When the thermistor is connected between terminals
S5 and SC, the Inverter can detect motor temperature
and, if the temperature exceeds the specified level,
trips to shut off the output (E35). The level is fixed.
Open
If the thermistor is not connected, the Inverter trips
(E35) to shut off the output even with this function
selected.
Related functions C005 only
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