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Hitachi CSC-5S Installation And Operation Manual page 23

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EXTERNAL OUTPUT AND INPUT FUNCTION
NOTE:
- In case of individual control, option No.1 only is available.
- If "RESET" switch is pressed or any switch is not pressed for more than 30 seconds during
option setting procedure, option setting mode is changed to the normal mode without option
setting. (A setting is not registered in this case.)
- Option setting is not available during operation. If "OPTION" switch is pressed during operation,
"NO FUNC." is indicated.
- If "UNIT SELECTION" switch is pressed in multiple-unit control, "NO FUNC." is indicated.
- Unit No. is always indicated as "AA" when all the units are operated simultaneously, in normal
mode.
Table 1. Option Setting
Option No.
Setting
2
Option 1
3
4
Inlet
Option 2
Outlet
0
Option 3
1
0
Option 4
1
* The water pump at the final stop still runs even under thermo-off.
8.
EXTERNAL OUTPUT AND INPUT FUNCTION
This controller (CSC-5S) has a function of 2 channel External Input and Output respectively.
Connection is shown below.
1 and 2 pin of CN2 ... External Input 1 Simultaneous Operation and Stoppage Input (Level Signal)
2 and 3 pin of CN2 ... External Input 2 Emergency Stoppage Input (Level Signal)
1 and 2 pin of CN3 ... External Output 1Simultaneous Operation Output (Level Signal)
1 and 3 pin of CN3 ... External Output 2Simultaneous Alarm Output (Level Signal)
3
CN2
2
1
3
CN3
2
1
Cable More Than 0.5mm
Use optional wiring assembly with the connector (PCC-1A) to connect external input and output. The
suitable relay for the external output is of Omron MY type.
Content of setting
Set Differential 2 Degree
Set Differential 3 Degree
Set Differential 4 Degree
Inlet Temperature Control
Outlet Temperature Control
Available for Capacity Control
to the Unit Stopped Finally
Not Available for Capacity
Control to the Unit Stopped
Finally
The pump is started after
Thermo-OFF.
The pump is stopped after
Thermo-OFF.*
Cable with Connecctor (Option): PCC-1A
2
(Field-Supplied, Max. Length: 70m)
Setting at
Individual
shipping
Control
Non-Voltage A Contact Input
RYa
RY
19
Multiple-
unit Control

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