Descriptions of VACON® option boards vacon • 75
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
3
Figure 26. X3 jumper selections for OPTD2, version H and later
NOTE! Position C can be used with 3- or 4-wire can cable to interconnect isolated CAN ground levels
in the network. It is recommended to connect the cable shield to the grounding clamp of the drive.
Figure 27. CAN grounding alternatives
Jumper block X3:
CAN grounding
ABC
A: Connected to
round
B: Connected to ground via LC filter
C: Connected to CAN isolated ground
Not assembled: No connection
S
ee further clarifications of the alternatives next page!
7288.emf
PE NC GND
PE NC GND
PE NC GND
A
23
chassis
CAN GND
chassis
- Used when the shield is connected to terminal 23
and the distance between the devices is short
B
chassis
chassis
23
CAN GND
-Usedwhentheshieldisconnectedtoterminal23
and the distance between the devices is long
C
23
CAN GND
chassis
- Used when CAN GND is connected to terminal 23.
This setting is recommended for best noise immunity
= Factory default
= Recommended setting
7289.emf
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