Input/Output Function - Hitachi PC-ARF Technical Catalogue

5 Centralised remote controls
PSC-A64S

5.3.4.3 Input/Output function

The central station has two input functions and two output functions as shown below.
1 Simultaneous Operation/Stoppage.
This function is for operating / stopping all the indoor units of the group, which is set by the central station, by the
external contact signal.
2 Simultaneous Operation.
This function is for operating all the indoor units of the group, which is set by the central station, by the external pulse
signal.
3 Simultaneous Stoppage.
This function is for stopping all the indoor units of the group, which is set by the central station, by the external pulse
signal.
4 Emergency Stop signal connection function.
This function is for stopping all the air conditioners connected with the central station by the external emergency stop
signal.
* When other central controller is used together with, even in the state of emergency stop, the RUN/STOP operation
by other central controllers is available.
5 Demand Control Function.
The peak-cut according to the electricity is available by the control of air conditioners with the control signal from the
demand control. The group set by the central station is operated by the demand signal as follows.
Table A. Input / Output Setting Mode and Connector
*1: The control is performed every 15 seconds for the zone, which is subject to demand control, in descending
-
order of the zone Nº
*2: The control is performed every 15 seconds for the zone, which is subject to demand control, in ascending or-
-
der of the zone Nº
- *3: During automatic cooling/heating operation, the activation of "Demand 1" is executed.
- *4: For the group with the optional setting of fixing operation mode, the activation of "Demand 1" is executed.
- *5: For the group with the optional setting of fixing operation mode or fixing set temperature, the activation of "De-
mand 1" is executed.
6 Simultaneous Operation Output.
This function is for outputting signal outward in the case where there is any air conditioner in operation in the group
set by the central station.
388
TCGB0106 rev.0 - 12/2014
Demand signal ON
Indoor Unit Stop
Demand 1
(Remote Control
Inhibited)
Demand 2 (*3,*4)
COOL, DRY→FAN
HEAT→STOP
Demand 3 (*3,*5)
(Remote Control
Inhibited)
Demand signal ON
(1*) (2*)
Back to the former
state of operation
The setting tempera-
ture is set as follows;
COOL, DRY...28ºC
HEAT...20ºC