Atlas Copco SMARTROC D65 TIER 4 FINAL, Maintenance Manual

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SmartROC D65 Tier 4 Final 14 Options
197
Pin Function
1 NC / not connected
2 CAN +
3 CAN -
4 CAN HI
5 CAN LO
Table 20: Pin configuration, CAN inputs and outputs, other modules
Mount the tester on the multimeter. Make certain the pins are positioned correctly as indic-
ated by the colour coding. The red pin goes to V/Ohm on the multimeter. Set the multi-
meter range to DC Volt.
CAN measurement
Connect the tester's 5-pin connectors to the CAN network requiring measurement:
n
Decoder: contact X3 or X4.
n
Display, application and master modules: connector X2, X3 or X4.
n
I/O modules: contact X1 or X19.
n
Resolver modules: contact X3 or X4.
Normal state
n
Supply voltage (MAIN POWER) 24-28 V (shines green).
n
CAN power supply (CAN POWER) 20-24V (shines green).
n
CAN communication (CAN HI), about 2.5V (flashes green).
n
CAN communication (CAN LO), about 2.3 V (flashes green).
Fault indication
n
CAN HI glows red constantly for short circuit to ground.
n
CAN HI glows green constantly for voltage above 3.5 V.
n
CAN LO glows green constantly for short circuit to ground.
n
CAN LO glows red constantly for voltage above 3.5 V.
n
If neither CAN HI nor CAN LO is lit, then there is no communication even though
power is being supplied to CAN.
n
If any light is flashing red, then CAN communication is at the wrong level or is inverted.
Supply voltage
Connect the tester's 5-pin connector to the module's power supply:
n
I/O modules: contact X25. 7-pin contact. Use enclosed T-cross.
n
Other modules: connector X1. 4-pin connectors.
The power supply (MAIN POWER) must be 24-28V (lights green).
CAN cable test
!
NOTE: System is to be shut down.