Mitsubishi Heavy Industries SRK60ZJX-S, Technical Manual

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'10 • SR-T-091
(t) Operation permission/prohibition
(In case of adopting card key switches or commercially available timers)
When the indoor function setting of wired remote controller for “Operation permission/prohibition” is changed from “Invalid
(Factory default)” to “ Valid”, following control becomes effective.
XR5
Card key
switch
XR1
1
2
3
4
5
6
XR3
XR4
CnT
Blue
12V
XR2
Optional
XR5
Normal operation
(Factory default)
Operation permission/prohibition mode
“Valid” (Local setting)
CnT-6
ON OFF ON OFF
Operation Stop
Operation
permission*1
Operation prohibition
(Unit stops)
*1
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.
In case of “Level input” setting In case of “Pulse input” setting
Unit operation from the wired
remote controller becomes
available*(1)
Unit starts operation
*(2)
*(1) In case that “Operation permission/prohibition mode” setting is “Valid” and “External input” setting is “Level
input (Factory default)”;
① When card key switch is ON (CnT-6 ON: Operation permission), start/stop operation of the unit from the
wired remote controller becomes available.
② When card key switch is OFF (CnT-6 OFF: Operation prohibition), the unit stops operation in conjunction
with OFF signal, and start/stop operation of the unit from the wired remote controller becomes not available.
*(2) In case that “Operation permission/prohibition mode” setting is “Valid” and “External input” setting is “Pulse
input (Local setting)”;
① When card key switch is ON (Operation permission), the unit starts operation in conjunction with ON signal.
and also start/stop operation of the unit from the wired remote controller becomes available.
② When card key switch is OFF (Operation prohibition), the unit stops operation in conjunction with OFF signal, and
start/stop operation of the unit from the wired remote controller becomes not available.
(3) This function is invalid only at “Center mode” setting done by central controller.
(u) External input/output control (CnT)
Be sure to connect the wired remote controller to the indoor unit. Without wired remote controller remote operation by CnT is
not possible to perform.
① Operation output (CnT-2: XR1)
② Heating output (CnT-3: XR2)
③ Thermostat ON output (CnT-4: XR3)
④ Error output (CnT-5: XR4)
⑤ Remote operation input (CnT-6: No-voltage contactor)
XR1
1
2
3
4
5
6
XR3
XR4
CnT
Blue
12V
XR2
Optional
XR5
1) 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.