Design Technical Manual


SETTING OF OUTDOOR UNIT AND SYSTEM CONTROLLER OR
TOUCH PANEL CONTROLLER
To obtain the appropriate Input Power by System Controller or Touch Panel Controller,
the power value measured by an electricity meter must be properly conveyed. To do this,
appropriate setting at the electricity meter, outdoor unit, and System Controller or Touch Panel
Controller is necessary. The method of setting the pulse from the electricity meter received by
an outdoor unit and the method of setting the pulse value set by System Controller or Touch
Panel Controller are described here. When electricity meter setting is necessary, perform it in
accordance with the instruction manual supplied with the electricity meter.
Below, the setting method of electricity meters specied in pulse units and that specied in
pulse constant are described.
(1) When electricity meter used is specied in pulse units
The connection conguration is shown below
.
Pulse unit
reference
point
measurement
ine
measurement
line
pulse
transmission
line
pulse transmission line
CT
VT
(PT)
3ø
1ø
VT
(PT)
System Controller
Transmission line (VRF Network)
Outdoor unit
Indoor unit
RB unit
Power cable
Electricity meter
Electricity meter
to CN135
to CN135
Touch panel
controller
For the electricity meter specied in pulse units, the output pulses are normalized in advance
(normally 1kWh/pulse) and is output. In this case, the settings are as follows:
Set point Set item Set value Description Remarks
Electricity
meter
Set in
accordance
with the product
manual.
- When there is a product unique setting,
setting is performed in accordance with
the product manual. (Pulse units value,
VT/CT ratio, output coe󰀩cient, etc.)
Outdoor unit Meter No.
setting
Arbitrary Set an unique electricity meter No. for
electricity meter identication.
The information
will become
necessary when
setting System
Controller or ECA
Tool later.
Refer also to
2-1 OUTDOOR
UNIT.
Electricity meter
pulse setting
1 Fixed to “1”.
When 1 pulse comes from the
electricity meter, the outdoor unit
communicates “1” to the System
Controller or ECA Tool.
System
Controller or
ECA Tool
Electricity meter
system setting
Units measured by
electricity meter
Set the outdoor unit and indoor unit,
measured by the electricity meter of the
meter No. set at the outdoor unit.
The value set by
each outdoor unit
is used.
Pulse setting Electricity meter pulse
units value (Usually
either of 1, 10, or 100
[kWh/ pulse])
Set the pulse units specied by the
electricity meter as they are.
Set the number of kWh that
corresponds to the “1” communicated
from the outdoor unit.
Refer to the
value set by each
outdoor unit.
[
Setting example]
Equipment conditions: VT ratio=1 (not used), CT ratio=50(250/5A), electricity meter=1kWh/pulse
Set value: Electricity meter pulse setting=1(xed), pulse setting=1(corresponds to electricity meter used)
- (07 - 179) -
FUNCTION SETTING FUNCTION SETTING