Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 170

(7) Inverter checker for diagnosis of inverter output
(7) Inverter checker for diagnosis of inverter output
Models SRC40, 50, 60ZMX-S, FDC71, 100, 125, 140VNX,100, 125, 140VSX
Models SRC40, 50, 60ZMX-S, FDC71, 100, 125, 140VNX,100, 125, 140VSX
FDC100, 125, 140VNA, 100, 125, 140VSA, 200, 250VSA
FDC100, 125, 140VNA, 100, 125, 140VSA, 200, 250VSA
●Checking method
●Checking method
(a) Models SRC40-60
(a) Models SRC40-60
(i) Setup procedure of checker.
(i) Setup procedure of checker.
1) Power OFF (Turn off the breaker).
1) Power OFF (Turn off the breaker).
2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor.
2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor.
3) Connect the wires U (Red) , V (White) and W (Black) of the checker to the terminal of disconnected wires (U, V, W)
3) Connect the wires U (Red) , V (White) and W (Black) of the checker to the terminal of disconnected wires (U, V, W)
from compressor respectively.
from compressor respectively.
(ii) Operation for judgment.
(ii) Operation for judgment.
1) Power ON and start check operation on cooling or heating mode.
1) Power ON and start check operation on cooling or heating mode.
2) Check ON/OFF status of 6 LED's on the checker.
2) Check ON/OFF status of 6 LED's on the checker.
3) Judge the PCB by ON/OFF status of 6 LED's on the checker.
3) Judge the PCB by ON/OFF status of 6 LED's on the checker.
ON/OFF
ON/OFF
status of LED according to following pattern
status of LED according to following pattern
Control PCB
Control PCB
Power ON
Power ON
3 min.
3 min.
Start check operation
Start check operation
4) Stop check operation within about 2minutes after starting check operation.
4) Stop check operation within about 2minutes after starting check operation.
(b) Models FDC71-250
(b) Models FDC71-250
(i) Setup procedure of checker.
(i) Setup procedure of checker.
1) Power OFF (Turn off the breaker).
1) Power OFF (Turn off the breaker).
2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor.
2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor.
3) Connect the wires U (Red) , V (White) and W (Black) of checker to the terminal of disconnected wires (U, V, W)
3) Connect the wires U (Red) , V (White) and W (Black) of checker to the terminal of disconnected wires (U, V, W)
from compressor respectively.
from compressor respectively.
(ii) Operation for judgment.
(ii) Operation for judgment.
1) Power ON after JSW10-4 on outdoor inverter PCB was turned ON.
1) Power ON after JSW10-4 on outdoor inverter PCB was turned ON.
2) After 15 seconds since power has turned ON, LED start ON/OFF for 5 seconds cyclically and it repeats 10 times.
2) After 15 seconds since power has turned ON, LED start ON/OFF for 5 seconds cyclically and it repeats 10 times.
3) Check ON/OFF status of 6 LED's on the checker.
3) Check ON/OFF status of 6 LED's on the checker.
4) Judge the PCB by ON/OFF status of 6 LED's on the checker.
4) Judge the PCB by ON/OFF status of 6 LED's on the checker.
ON/OFF
ON/OFF
status of LED according to following pattern
status of LED according to following pattern
Inverter PCB
Inverter PCB
Power ON or start check operation
Power ON or start check operation
15 sec.
15 sec.
5) Be sure to turn off JSW10-4 on outdoor inverter PCB, after finishing the check operation.
5) Be sure to turn off JSW10-4 on outdoor inverter PCB, after finishing the check operation.
〈Inverter checker〉
〈Inverter checker〉
Faston terminal
Faston terminal
Connect to the terminal of the wires which are disconnected from compressor.
Connect to the terminal of the wires which are disconnected from compressor.
If all of LED are ON/OFF
If all of LED are ON/OFF
Normal
Normal
Stop check operation
Stop check operation
If all of LED are ON/OFF
If all of LED are ON/OFF
Normal
Normal
During this period, ON/OFF status of LED is
During this period, ON/OFF status of LED is
repeated cyclically according to following pattern
repeated cyclically according to following pattern
1 2 3
～
1 2 3
～
5sec. 5sec.
5sec.
5sec. 5sec.
5sec.
LED
LED
Red
White
U
Black
Red
V White
U
W Black
V
W
-
If all of LED stay OFF or
If all of LED stay OFF or
some of LED are ON/OFF
some of LED are ON/OFF
Anomalous
Anomalous
During this period, ON/OFF status of LED is
During this period, ON/OFF status of LED is
repeated cyclically according to following pattern
repeated cyclically according to following pattern
If all of LED stay OFF or
If all of LED stay OFF or
some of LED are ON/OFF
some of LED are ON/OFF
Anomalous
Anomalous
10
10
LED ON/OFF pattern
LED ON/OFF pattern
LED1 LED1 LED1
LED2 LED2
LED1
LED1 LED1
LED3 LED3 LED3
LED2 LED2
LED4 LED4
LED3 LED3 LED3
LED5 LED4 LED5 LED4 LED5
LED6 LED6
LED5 LED5 LED5
LED6 LED6
169
-
'19 • PAC-T-327
LED1 LED1 LED1
LED2 LED2 LED2
LED1 LED1 LED1
LED3 LED3 LED3
LED2 LED2 LED2
LED4 LED4 LED4
LED3 LED3 LED3
LED4 LED5 LED4 LED5 LED4 LED5
LED6 LED6 LED6
LED5 LED5 LED5
LED6 LED6 LED6
Cyclically
● ON
Cyclically
○ OFF ● ON
○ OFF
LED2
LED2
LED4
LED4
LED6
LED6