9
4
Trial Operation Check
Before starting trial operation
Turn on the power of the Digital Input/Output Relay Interface after all cable connections and settings are
completed. Turn on power of the air conditioning control system.
Trial operation
• Confirming external input connection
In the test mode, when the external inputs connected to the input terminals DI-1 to DI-8 are ON, the
respective LEDs will goes on so you can confirm the connection.
Confirming procedure:
Set the operation mode switch SW2 to “3”, and push the reset switch SW7 to enter the test mode.
Unless SW4 is pushed, the respective input status of DI-1 to DI-4 is indicated by LED2 to LED5.
When SW4 is pushed, the respective input status of DI-5 to DI-8 is indicated by LED2 to LED5.
(*) To return to the normal operation, reset SW2 to “zero (0)” and push SW7.
SW4 OFF
SW4 ON
LED2
Displays DI-1 input
status.
Displays DI-5 input
status.
LED3
Displays DI-2 input
status.
Displays DI-6 input
status.
LED4
Displays DI-3 input
status.
Displays DI-7 input
status.
LED5
Displays DI-4 input
status.
Displays DI-8 input
status.
Input ON: LED lights
Input OFF: LED turns off
• Checking external output connection
In the test mode, you can set output terminals DO1 to DO4 to ON or OFF with the test switch. Their
output status is indicated by each LED.
Checking procedure:
Set the operation mode switch SW2 to “3” in the same way as the external input check, and then
push the reset switch SW7 to enter the test mode.
When the bit of the test switch SW3 is set to ON, the external output turns ON; when set to OFF,
the external output turns OFF.
Bits 1 to 4 of SW3 correspond to output terminals DO1 to DO4.
The respective output status of output terminals DO1 to DO4 is indicated by LED14 to LED17.
The LEDs light with the output ON, and goes off with the output OFF.
(*)To return to normal operation, reset SW2 to “zero (0)” and push SW7.
LED14
Displays DO1 output
status.
LED15
Displays DO2 output
status.
LED16
Displays DO3 output
status.
LED17
Displays DO4 output
status.
Output ON: LED lights
Output OFF: LED turns off
• Checking the RS-485 communication status
Use LED2 for checking the RS-485 communication status.
When RS-485 communication with Touch Screen Controller is normal, LED2 will blink.
LED1
LED2
LED3
LED4
LED5
Power indicator
RS-485 communication
status indicator
Not used
Test indicator
Test indicator
Normal
ON
Blinking
OFF
OFF
OFF
Abnormal
OFF
OFF
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Summary of Contents for BMS-IFDD02E2
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