Thermistor Trip Function - Omron SYSDRIVE MX SERIES User Manual

Reset
This function resets an Inverter trip.
Data Symbol
18 RS
Available input terminals
Required settings
•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.
Parameter No. Function name
C102 Reset selection
(Example 1)
ON
RS
OFF
ON
Alarm
OFF

Thermistor Trip Function

This function protects the motor by tripping with the built-in thermistor detecting a temperature rise.
Data Symbol
19 PTC Thermistor input
Available input terminals
•Allocate 19 (PTC) to multi-function input 5 (C005). This cannot be used with other multi-function
inputs. (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 of the
Control Circuit Terminals" (page 2-26).
Function name Status
ON
Reset
OFF
C001, C002, C003, C004, C005, C006
Data
00
01
02
Function name Status
Connected
Open
Description
Shuts off the power if the Inverter is running.
Cleared at trip.
(The same process as when the power is turned on)
Same as above.
C102
Description
Trip reset at power-on (example 1)
Enabled during normal operation (shuts off output)
Trip reset at power-off (example 2)
Enabled during normal operation (shuts off output)
Trip reset at power-on (example 1)
Disabled during normal operation (trip reset only)
(Example 2)
ON
RS
OFF
ON
Alarm
OFF
Description
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.
If the thermistor is not connected, the Inverter trips (E35)
to shut off the output even with this function selected.
C006 only
4-2 Function Mode
4-48
4