Toshiba Carrier TCB-IFDMR01UP-UL Service Manual page 40

Terminal DI1 / DI1: Safety contact (Normal close)
MODE 1 (Normally close, DC12 V) *When Bit1 of SW505 is OFF
• If this contact is open for more than 1 minute, the check code P10 is generated and the Dx-coil controller switches off
automatically.
MODE 2 (Normally open, DC12 V) *When Bit1 of SW505 is ON
• If this contact is short for more than 1 minute, the check code P10 is generated and the Dx-coil controller switches off
automatically.
SW701
GND
DI1
SIGNAL (12 V) DI1
SW701
GND
DI1
SIGNAL (12 V) DI1
SW701 SW505
OFF
OFF
ON
OFF
ON
ON
SW505
MAX. 328'1" (100 m)
Locally procured
Normally closed
SW505
MAX. 328'1" (100 m)
Locally procured
Normally open
The coil drive voltage is input to the relay arranged locally for DI1, and judge that the close is
positive. (Default)
Relay: Local arrangement
The coil drive voltage is not input to the relay arranged locally for DI1, and judge that the open is
positive.
Relay: Local arrangement
For DI1, short-circuit the (+) signal voltage and DI1 (-) GND with a SW or harness, and judge
that the close is positive.
Relay: Not required
* The signal voltage is DC12 V ± 10%, and it is necessary to add a SW element to the signal line.
For DI1, open the (+) signal voltage and DI1 (-) GND, and judge that the open is positive.
Relay: Not required
* The signal voltage is DC12 V ± 10%, and it is necessary to add a SW element to the signal line.
SW701
Bit1:
OFF
SIGNAL (+)
SIGNAL (-)
SW701
Bit1:
ON
SIGNAL (+)
SIGNAL (-)
Function
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SW505
SW505
MAX. 328'1" (100 m) Locally procured
Signal Voltage (DC12 V ± 10%)
DI1
GND
DI1
Normally closed
SW505
MAX. 328'1" (100 m) Locally procured
Signal Voltage (DC12 V ± 10%)
DI1
GND
DI1
Normally open
Bit1:
OFF
Bit1:
ON