User manual

µC
2
SE process chiller +030220416 - rel. 2.2 - 25.01.2013
2.3 µC
2
SE wiring diagram
Key
G 24 Vac power supply
G0 Powe
r
supply reference
B1…B4
A
nalogue inputs 1…4
ID1…ID5 Digital inputs 1…5
C1…C5 Common digital outputs 1…5
NO1…NO5 Digital outputs 1…5 normally open contact
Y
1
A
nalogue outpu
t
1
Key/SP
V
Connector for key/superviso
r
V
+ Ratiometric pressure probe power supply
Tx/R
x
tLAN port
Ground
Notes:
- the digital output 1 cannot be programmed and is intended for the
compressor;
- the analogue inputs B1 and B2 are reserved respectively for the
evaporator input and output probes.
2.4 I/O board wiring diagram
Key
G 24 Vac power supply
G0 Power supply reference
ID11…ID15 Digital inputs 11…15
B8
A
nalogue input 8
C11…C15 Common digital outputs 11…15
NO11…NO15 Digital outputs 11…15 normally open contac
t
V
+ Ratiometric pressure probe power supply
Y
2
A
nalogue output 2
Tx/R
x
tLAN port
Ground
2.5 Optional connections
The programming key input can be used successively for the connection to the
supervision network via RS485 converter.
2.6 Inputs/outputs labelling
µC
2
SE I/O expansion board
A
nalogue inputs B1…B4 B8
Digital inputs ID1…ID5 ID11…ID15
A
nalogue outputs
Y
1Y2
Digital outputs NO1…NO5 NO11…NO15
Notes:
- only probe B8 can be connected to the I/O expansion board;
- the numbering of the digital inputs/outputs of the expansion board goes
from 11 to 15.
!
If the serial line is connected in supervision mode, do not connect to earth the secondary terminal of the supply transformer of the control.
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