Zanotti un0 010, Workshop Manual

Page: 162 / 248

151
5.3 Digital Sensors
Electronics and wiring
MP Unit Door Micro-switch
Specifications:
Circuit unipolar
State N.C.
Opens at Cover Door opening
Connections:
Port-Pin by Wire
J10 − 8th NE108
J8 − 15th 61
Function:
MP trips when unit door is opened and A08 Alarm stopping
unit until door is closed.
Digital Input menu label:
Door Microswitch
Alarm: A08 - Door Microswitch
ON/OFF Button
Specifications:
Circuit unipolar
State Pushbutton N.O. (No Contact Block)
Connections:
Port-Pin by Wire
J10 – 5
th
NE105
J8 − 10
th
40
Functions:
This button is equipped to help technicians during service
procedure, giving them possibility to turn on and off unit
directly from Electrical Box.
Digital Input menu label:
Remote ON/OFF
MPC Cold-Room Door Micro-switch (optional)
Specifications:
Circuit unipolar
State N.C.
Opens at Door opening
Connections:
Port-Pin by Wire
J10 Not connected
J8 − 6
th
Not connected
Function:
This sensor is to stop evaporator fans and unit operations
when cold-room door is opened, preventing and reducing