Mitsubishi Electric LGH-15RVX3-E Installation Instructions Manual page 14

When the external device has an Volt-free contact signal
• If the input is pulse signal, move the pulse input switch [SW2-2] to
the ON position. (Refer to function settings
• When level signal is selected, the signal width has to be more
than 10 seconds for ON and OFF .
• When pulse signal is selected, a pulse width has to be at least 200
m sec. to turn Lossnay ON, and 10 sec. interval is necessary to
next output.
• The wiring should be as shown by the following picture.
Lossnay external
1 2 Y Z
control input
(TM2)
Maximum 500 m
CAUTION
• If an optocoupler or any other type of polar coupler is used at
the Volt-free contact, connect the positive side to Y and the
negative side to Z.
3
When operating multiple Lossnay units
In the case that all Lossnay units are the same LGH-RVX3-E series,
up to 15 multiple units can be operated at the same time.
1) Connect the Lossnay unit from Unit 1 to Unit 2, and from Unit 2 to
Unit 3 and so on up to a maximum of 15 units using a transmission
cable.
Wire type: two-core sheathed cable
Wire diameter: 0.3 mm
2
2) When it is interlocked with an external device, set the Lossnay unit
which has external signal input to "Main".
Lossnay
External
device
Power supply
Lossnay
Power supply
Lossnay
Power supply
MAX 15 units
CAUTION
TM4, TB5
✓
Note
• Do not tighten screws of terminal block with a torque larger
than 1.2 N・m. It could damage the circuit board.
• When connecting multiple cables to the terminal, use round
terminal.
• Solid wire (single-stranded wire) cannot be connected.
)
No. 28
0.5 mm 2 to 1.5 mm 2 sheathed PVC cable
External device
Volt-free contact
Remote controller
(PZ-62DR-EA/EB)
Power supply
Operating switch for
external device
First
TM4
Lossnay
1 2
Connect to
remote controller
(PZ-62DR-EA/
EB)
Second
TM4
Lossnay
1 2
Connect to
third Lossnay
Transmission cable
• Only one unit can be set as main Lossnay. The operating signal
and pulse signal of the external device can be connected to
Main Lossnay only.
• Connect the power supply cable to each Lossnay unit.
• When setting the Lossnay address for use with a Mitsubishi
Electric Air-Conditioner Network System (MELANS) etc., the
Lossnay with the smallest address in the group will be the Main
Lossnay. When not setting the address, set the address to "1"
for only one unit in the group. The Lossnay with an address of
"1" is the Main Lossnay. (Refer to "Setting the address" on the
section 5 for more detail.)
4
Signal output from Lossnay unit
Set DIP-SW or Function setting on PZ-62DR-EA/EB as following table
depending on the necessary output signal from Lossnay unit. For
more information of signal output, see function settings
No. 16
.
DIP-SW setting Function setting on
PZ-62DR-EA/EB
SW5-1 SW5-2
- -
OFF OFF
ON OFF
OFF ON
12
ON ON
N/A N/A
N/A N/A
N/A N/A
Indicator
External device
etc.
• Do not tighten screws of terminal block with a torque larger than 0.5
N・m. It could damage the circuit board.
• When connecting multiple cables to the terminal, use round terminal.
• If multiple output signals are necessary, use optional signal output
terminal (PZ-N4GS-E).
When using Pre-heater output signal, the wiring should be as shown
by the following picture.
2 m or more
OA
Pre-heater
Power Supply
for heater
CAUTION
• Failure to follow below instructions, it could cause a fire.
• Choose a OA pre-heater which can control the heater outlet air
temperature even both the air flow is maximum and minimum,
and set Lossnay inlet air temperature to 2 - 13˚C.
Otherwise it could fall the supply fan into intermittent operation.
• Select a duct heater in compliance with local and national laws,
ordinances, and standards.
• Select a duct heater that is tested by a certification body.
• Always select a heater that is equipped with a non-self-resetting
safety device.
• Do not directly supply power from the Lossnay unit to the duct
heater. Doing so could cause fire.
• Install a circuit breaker for the duct heater in compliance with
all applicable laws, ordinances, and standards.
Eng-14
2303N22HHZA0013
Signal output
0 Dip-SW priority
1 Operation monitor
2 Malfunction monitor
3 By-pass monitor
4 Supply fan operation monitor
5 Exhaust fan operation monitor
6 Pre-heater signal output
7 After-heater signal output
TM3
9
10
Power Supply
Max. 240 VAC, 1 A
24 VDC, 1 A
Min. 220 VAC, 100 mA
5 VDC, 100 mA
Lossnay
SA
TM3
9
Relay
10
Power Supply
Max. 240 VAC, 1 A
for relay
24 VDC, 1 A
Min. 220 VAC, 100 mA
5 VDC, 100 mA
No. 12
to