Hitachi RAS-2-HVNP Service Manual page 163

6. Optional functions
  
RAS-3HVNPE / RAS-(4-12)H(V)N(P/C)(E)
Input signals
Ind. Input signal
No setting application
0
Fixing the heating mode
1
Fixing the cooling mode
2
Demand thermo OFF
3
No setting application
4
Forced stoppage
5
Current control demand 60%
6
Current control demand 70%
7
Current control demand 80%
8
Current control demand 100%
9
No setting application
10
Output signals
Ind. Output signal
No setting application
0
Operation signal
01
Alarm signal
02
Compressor ON signal
03
Defrost operation signal
04
N O T E
Do not set same function to multiple input port. If set, the higher input terminal number will be cancelled.
149
SMGB0079 rev.0 - 01/2013
Application
No setting
This signal allows to pre-fix the operation mode, in this case the heating
mode, independently of what the indoor unit requests. If the indoor units
request the oposite mode than the outdoor unit, the compressor will not start.
This is very useful to set up a unique operation mode.
This signal allows to pre-fix the operation mode, in this case the cooling
mode, independently of what the indoor unit requests. If the indoor units
request the oposite mode than the outdoor unit, the compressor will not
start. This is very useful for computer rooms where the cooling mode is fixed
throughout the year.
This signal allows to stop the compressor if it reaches a certain power as well
as to put the indoor unit in Thermo-OFF. This is very useful for installations
with high power consumption. This signal is only activated if function F1 has
value 1.
No setting
This signal allows to control the stoppage of the compressor and the fans of
the indoor as well as outdoor units. This is very useful when used with the
alarm signals of the fire prevention systems. This signal is only activated if
function F1 has value 1.
This signal allows to regulate current consumption and establish an average
consumption of 60% of the rate point. This is very useful for installations that
run 24 hours a day.
This signal allows to regulate current consumption and establish an average
consumption of 70% of the rate point. This is very useful for installations that
run 24 hours a day.
This signal allows to regulate current consumption and establish an average
consumption of 80% of the rate point.This is very useful for installations that
run 24 hours a day.
This signal allows to regulate current consumption and establish an average
consumption of 100% of the rate point. This is very useful for installations
that run 24 hours a day.
No setting
Application
No setting
This signal allows to pick up the machine's operation signal. This is very
useful to start up additional systems such as humidifiers, fans and other ad-
ditional air-conditioning systems.
This signal picks up the machine's alarm. This is very useful to warn that an
alarm has been tripped.
This single allows to pick up the compressor's operation signal. It is very
useful for checking signals during remote-control operation and for the
interlock of the outdoor unit.
This signal allows to pick up the defrosting of the unit. This is very useful to
know how the indoor unit is operating if there is an abnormal situation.
Port
—
CN1 and CN2
CN1 and CN2
CN1 and CN2
—
CN1 and CN2
CN1 and CN2
CN1 and CN2
6
CN1 and CN2
CN1 and CN2
—
Port
—
CN7
CN7
CN7
CN7