IMC CANSAS - Page 529

CAN-Bus connectors 529
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
8.1.3.1.2 LEMO 0B plug (µ-CAN-x1-L)
PIN
Signal
CiA description
Use in imc CANSAS
1
+CAN_SUPPLY
dominant high bus
line
imc CANSAS-specific:
+ imc CANSAS supply +9…+50 V. The module is supplied via
the pins +CAN_SUPPLY and –SUPPLY.
2
-SUPPLY
imc CANSAS-specific: - imc CANSAS power supply (minus
contact: 0V).
3
CAN_LOW
dominant low bus
line
Connected as specified by CiA
4
CAN_HIGH
dominant high bus
line
Connected as specified by CiA
5
CAN_GND
CAN Ground
Connected as per CiA . CAN-bus reference ground
CHASSIS
Cable shielding
6-pin LEMO terminal
type HGG.0B.305
Pins 3 and 4 are absolutely necessary for transmission on the CAN-Bus, as
well as the CAN-Bus ground. According to specifications, the differential
signals require a reference, for which reason a CAN-Bus ground
connection is also needed. For this purpose pin 5 can be used. There are
situations where the CAN ground is not necessary: for example, on board
vehicles, if instead of a line to pin 5 it is possible to make contact with
anywhere on the chassis. In that case, the chassis is a substitute for the
line to pin 5.
Other lines can be used for the purpose if necessary, for instance the
power supply line.
Note when using LEMO plugs and cables, that there is a limit on the maximum current through the
LEMO-plug. An accordingly high power supply voltage for the modules may need to be used.
Check the cross-section of the cables.