Operation; Parameters List - Hitachi PC-ARF Technical Catalogue

8 Control support devices
PC-A1IO

8.3.4 Operation

8.3.4.1 Parameters list

(SW8 setting: All in Off)
Code Description
AI1
AI2
AI3
AI4
Not available
AI5
AI6
AI7
AI8
DI1 Fan unit ON/OFF
DI2 Fan HIGH speed
DI3 Fan MEDIUM speed
DI4 Fan LOW speed
DI5 Alarm code
DI6 ON/OFF status
DI7 Not available
DI8 Not available
DO1 Fan unit ON/OFF
DO2 Fan HIGH speed
DO3 Fan MEDIUM speed
DO4 Fan LOW speed
DO5 Heat/Cool mode
DO6 Central/Local mode
DO7 Alarm signal
DO8 Not available
1) If some of DI2~4 are activated at the same time, the lower speed is selected.
2) If some of those terminals are not available or accessible from fan unit, then those functions are not available.
Some functions activated by local Remote Controller (ON/OFF and FAN SPEED).
All these parameters can be used for other purposes different from those indicated in the previous table. In that case, it is
recommended to keep in local mode, just to avoid the undesired performance of that parameter in case of central control.
Those functions in central mode can be operated from CSNET WEB as normal Hitachi Indoor Unit
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TCGB0106 rev.0 - 12/2014
Connection
–
From local remote controller
From local remote controller
From local remote controller
From local remote controller
From local remote controller
From fan unit (feedback signal)
–
Unit fan: ON/OFF terminals
Unit fan: HIGH speed terminals
Unit fan: MEDIUM speed terminals
Unit fan: LOW speed terminals
Unit fan: Operation mode terminals
Local Remote Controller: Lamp
To Local Remote Controller
-
Remarks Local
– –
OFF: Open
Applicable
ON: Closed
Selector switch:
Applicable
Selected switch is
closed circuit (1)
Alarm OFF: Open
Applicable
Alarm ON:
Closed
OFF: Open
Applicable
ON: Closed
– –
OFF: Open
Applicable
ON: Closed
OFF: Disabled
Applicable (2)
ON: Activated
COOL: Open
Applicable (2)
HEAT: Closed
OFF: Local
Applicable
ON: Central
OFF: Alarm OFF
Applicable
ON: Alarm ON
- -
Central
–
Monitoring
Monitoring
Monitoring
Monitoring
–
Control
Control
Control
Control
Control
-