Service Manual

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No. Check Item Corrective action
1 Is the main Lossnay (and its address setting) set
correctly?
Check the address setting switches (SW11, SW12)
on the circuit board.
When controlling with external input signals without
connecting to MELANS, set one of the units in the
group as the main Lossnay (with address number 1
or the smallest number other than 0).
Connect the signal cables to the main Lossnay unit.
2 Are the function selection switches on the circuit
board set correctly to suit the required application?
Set the function selection switches (SW2, SW5) on
the circuit board correctly.
3 Is the applicable model used as the Lossnay
remote controller?
Use PZ-62DR-EA or PZ-43SMF-E.
(The air conditioner remote controller including
PAR-40MAA cannot be used.)
4 When PZ-62DR-EA is used, are the function selec-
tions set correctly to suit the required application?
Set the function selections correctly.
After setting the functions with PZ-62DR-EA, oper-
ating the model selection switch (SW6) or address
setting switches (SW11, SW12) on the control cir-
cuit board resets the settings to the initial settings.
5 For a function that can be set with both
PZ-62DR-EA and the function selection switches on
the control circuit board, was the function set with
the function selection switches after the function is
set with PZ-62DR-EA?
Set the function again with PZ-62DR-EA.
For the function that can be set with both
PZ-62DR-EA and the function selection switches,
after the function was set with PZ-62DR-EA, setting
with the function selection switches is disabled.
[4] Function setting
Terminal block TM3 [9] [10]
Function Name Operation monitor (Factory default setting) (Note 1)
Signal specifications Volt-free contact
Output rating
240 V AC, 1 A
24 V DC, 1 A
Min. applicable load
208 V AC, 100 mA
5 V DC, 100 mA
(Note 1) Output can be changed with function settings.
Table 3-1 Monitor output specifications
No. Check Item Corrective action
1 Is the signal cable wired by multicore cable? Wire the cable using a 2-core cable.
2 Are the signal cables and transmission cables wired
in the same piping duct?
Wire the signal cables away from the transmission
cables.
3 Is the power supply cable wired at least 2 in. (5 cm)
away from signal cables?
Wire the power supply cable at least 2 in. (5 cm)
away from the signal cables.
4 Is the signal cable connected to the designated ter-
minal block? (See Table 3-1.)
Connect the signal cable to the designated terminal
block.
5 Is the signal cable incorrectly wired, is there a faulty
connection or are screws loose?
Connect the cable securely and correctly, and
tighten the screws firmly.
6 Is the output capacity of the signal cable within rat-
ing? (See Table 3-1.)
Use the signal cable within rating.
7 Is the function selection for the external output sig-
nal set correctly?
Set the function selection switches (SW5-1 and 5-2)
on the circuit board correctly, or set the function set-
tings (No. 12 to 16) of PZ-62DR-EA correctly.
[3] Monitor output signal cable