Toshiba BMS-SM1280HTLE Service Manual page 49

15-5.Facing Test
No.
1 At both sides of the controller and handy remote controller, perform setting and display check.
2 Before starting the check, discuss and determine the air conditioners checking order and procedure.
Check 1:
3
Check that the unit name and operation state match between the controller and the handy remote controller.
Check 2:
4
Check that the setting operation from the controller can change the setting in the handy remote controller.
Check 3:
5
Check that returning the setting to the previous state in the handy remote controller can change the setting in the controller.
6 Proceed to the next air conditioner with check.
15-6.RS-485 Communication Check
No.
1 At both the Digital Input / Output Relay Interface and the Energy Monitoring Relay Interface, check that the POWER LED1 (Red)
is lit and the RS-485 LED2 (Green) is blinking.
×
NG1:
The POWER LED1 (Red) is off.
×
NG2:
The RS-485 LED2 (Green) is off.
OK:
The RS-485 LED2 (Green) is blinking.
2 Check that the wiring is connected to the RS-485 terminal block of the controller.
Check that the wiring is connected to the RS-485 terminal blocks of the Digital Input / Output Relay Interface and the Energy
3
Monitoring Relay Interface.
4 Check that the wiring polarity (+), (-) is correct.
Check that the address and switch are correctly set for the Digital Input / Output Relay Interface and the Energy Monitoring Relay
5
Interface.
Check that the settings in the "System equipment configuration" and "Address Setting" sheets in the setting file match the address
6
setting of the Digital Input / Output Relay Interface or the Energy Monitoring Relay Interface.
15-7.Checking on RS-485 Send and Receive Circuit of the
Controller and Interface
No.
1 Check that the RS-485 LED2 (Green) of the interface is blinking.
OK:
The RS-485 send circuit of the controller is normal.
The RS-485 receive circuit of the interface is normal.
Check point
Check point
Error message
Check if the Digital Input / Output Relay Interface or the Energy
Monitoring Relay Interface is turned on.
Check the RS-485 wiring as shown in the step (2) and the subsequent
steps below.
When the LED2 (Green) is blinking, if S06:BMS-IFWH communication
error or S07:BMS-IFDD communication error occurs, perform (6)
shown below.
Check point
Error message
49