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26 Operation principle and hardware description
Overview of control connections of ZCU-14 control unit
It is possible to:
•
control the unit through the control panel and fieldbus
•
read the status information of the supply unit through the control panel, fieldbus
and relay output.
The diagram shows the control connections and interfaces of the ZCU control unit.
1
Analog and digital I/O extension modules and fieldbus communication modules can be inserted
into slots 1, 2 and 3.
2
3
4
Memory unit
5
Not in use in supply modules
6
Terminal blocks
7
Control panel
Supply unit control devices
Run enable is the main control signal of the supply unit. The control program reads it
from digital input DI2. You can control the signal, for example, with an operating switch
FXX
FXX
FXXX
X
R
O
SLOT 1
1
X
1
R
O
2
X
R
O
3
X
P
O
W
J1J2
2
X
A
I
SLOT 2
X
A
X12
O
SAFETY
OPTION
J3
X
5
D
2
D
X208
X
FAN2
S
T
O
3
X210
FAN1
X
D
I
SLOT 3
X
X209
D
AIR IN
I
TEMP
O
J6
X
D
2
4
X13
X205
CONTROL PANEL
MEMORY UNIT
4
7
6
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