Electrical connections
Ex p control unit
Motor Purge Controller
Page 42 of 96
01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx
Rev. 0
So that the bypass switch is recognised,
and the function can be carried out, a
resistor with 620R must be connected to the
closing contact.
The temperature sensor can be a PT 100 or
1000. Settings for the sensor are made in
the device. Two or three wire sensors can be
used.
Terminal
Connection
Function
1
Bypass IN
Contact for the bypass switch
2
Bypass OUT
Contact for the bypass switch
3
T-Sensor 1 IN
Connection temperature sensor 1
4
T Sensor 1 OUT
Connection temperature sensor 1
5
T Sensor 1 MESS
Connection temperature sensor 1
6.2.2.2
Terminal row “X14”
As an additional release, a release switch can be connected after the APEX
control unit has authorised the release.
This function issues the operational release when the control unit is released
plus the main switch is activated.
The main switch does not require a
combination of resistors.
The temperature sensor can be a PT 100 or
1000. Settings for the sensor are made in the
device. Two or three wire sensors can be
used.
Terminal
Connection
Function
1
Main switch IN
Contact for the main switch
2
Main switch OUT
Contact for the main switch
3
T-Sensor 2 IN
Connection temperature sensor 2
4
T-Sensor 2 OUT
Connection temperature sensor 2
5
T-Sensor 2 MESS
Connection temperature sensor 2
