Mitsubishi Electric SRK100VNPZJX, Technical Manual

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308
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'12 • PAC-T-174
(a) Output for external control (remote display)
Following output connectors (CnT) are provided on the indoor control PCB for monitoring operation status.
①
Operation output:
Outputs DC12V signal for driving relay during operation
②
Heating output:
Outputs DC12V signal for driving relay during heating operation
③
Thermostat ON output:
Outputs DC12V signal for driving relay when compressor is operating.
④
Error output:
Outputs DC12V signal for driving relay when anomalous condition occurs.
(b) Remote operation input
Remote operation input connector (CnT-6 or CnTA) is provided on the indoor control PCB.
However remote operation by CnT-6 or CnTA is not effective, when “Center mode” is selected by center controller.
In case of plural unit (twin, triple, double twin), remote operation input to CnT-6 or CnTA on the slave indoor unit is
invalid.
Only the “LEVEL INPUT” is acceptable for external input
, however when the indoor function setting of “Level
input (Factory default)” or “Pulse input” is selected by the function for “External input” of the wired remote controller,
operation status will be changed as follows.
1) In case of “Level input” setting (Factory default)
Input signal to CnT-6 or CnTA is OFF→ON …… unit ON
Input signal to CnT-6 or CnTA is ON→OFF …… unit OFF
Operation is not inverted.
ON ON
OFF
OFF
OFF
ON ON
ON ON
Remote
controller OFF Remote
controller ON
Remote
controller OFF Remote
controller ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
CnT-6 or CnTA input
Unit A
Unit B
CnT-6 or CnTA input
Unit A
Unit B
Note: The latest operation has priority
It is available to operate/stop by remote controller or center controller
2) In case of “Pulse input” setting (Local setting)
It is effective only when the input signal to CnT-6 or CnTA is changed OFF→ON, and at that time unit operation [ON/
OFF] is inverted.
ON ON
OFF
OFF
OFF
ON ON
ON
ON
Remote
controller OFF Remote
controller ON
Remote
controller OFF Remote
controller ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON ON
OFF OFF
CnT-6 or CnTA input
Unit A
Unit B
CnT-6 or CnTA input
Unit A
Unit B
3) In case of CnT
①
Operation stop level > CnTA
③
Operation permission/prohibition level
( ※ ) CnT level input supersedes CnTA operation prohibition.
Operation permission Operation permission
CnT
Ԙ
Level input
CnTA
Ԛ
Operation permission/
prohibition setting
Operation permission/
prohibition zone
Actual operation
Operation permission
Operation prohibition
Operation
Operation Operation
Operation
Operation(
̪
)
Operation
Prohibition
Stop Stop Stop
Stop Stop Stop
Prohibition