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Troubleshooting
Problem
The indicator on the Collective ON/OFF button is
blinking.
Problem
is displayed on the screen.
Problem
A Filter Sign is displayed on the screen.
Problem
[Emergency Stop (Level-signal)] is displayed on the screen, and the controller does not respond to the ON/OFF button.
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Solution
Touch Main Menu > System Management > Status List.
ON the Malfunction tab, check the error code and the error
source address on the screen, and consult your dealer.
Refer to P57.
Solution
Touch Main Menu > System Management > Status List.
ON the Malfunction tab, check the error code and the error
source address on the screen, and consult your dealer.
Refer to P57.
Solution
Touch Main Menu > System Management > Status List.
ON the Filter Sign tab, check the address on the screen.
Clean the filter on the unit whose Filter Sign is on according
to the instructions in the manual for the applicable unit.
Refer to P57.
If the external input interface receives an emergency stop
signal, all indoor units and the LOSSNAY that are controlled
by the AT-50A will stop. The AT-50A controller, low-level
system controllers, or local remote controllers will not
respond until the emergency stop signal input is removed.
When the emergency stop signal is removed, the operation
status before the signal was received will be restored.
30VDC *1
Power source
(for connection to M-NET only)
Operating temperature range
Temperature
Operating conditions
Storage temperature range
Humidity
30%~90%RH (Non-condensing)
Weight
0.5 kg [1-1/8 lbs]
External dimensions (W x H x D)
180 x 120 x 30 mm 7-3/32 x 4-23/32 x 1-3/16 in
*1 Not for use with a generic DC power supply device. Use the power supply unit for transmission line (PAC-SC51KUA etc.) by Mitsubishi.
*2 "Power consumption Coefficient" is a coefficient to calculate the relative power consumption of the devices that receive power through the
M-NET transmission line.
Refer to the note at the end of Chapter 1-5 "System diagram" in the Installation Manual.
Specifications
Receives power from the power supply unit for transmission line or
from outdoor units via the M-NET transmission cable. The power
consumption coefficient*
2
of AT-50A is "4."
0 - 40˚C [32˚F - 104˚F]
-20 - +70˚C [-4˚F - +158˚F]
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