8. Peripherals and Options
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Extension CANopen Card (MD38CAN2)
MD38CAN2 is designed to connect the drive to high-speed CANopen bus. CANopen is
an international eld bus standard. Equipments supporting this protocol can be connected
to the CANopen bus.
MD38CAN2 supports the following ve protocols:
1. The Node Guard protocol, with which master can read equipment status
2. The Heartbeat protocol, with which slave detects current state to master regularly
3. The SDO that supports accelerated transmission mechanism only and transmits one
function code (two bytes)
4. Three TPDOs and three RPDOs
5. Emergency object
CANH
CANL CGND
SW1
ON
1 2 3
4 1
ON
ON
1 2 3 4
S2 S3
J2
CN1
J1
PWR
ERR RUN
Table 8-9 Terminal descriptions of MDCAN2
Type Terminal Terminal Name Function Description
CAN
communication
terminal
CANH CAN positive input Connect to the positive pole of the CAN
bus.
CANL CAN negative input Connect to the negative pole of the
CAN bus.
COM Power ground Connect to the reference ground of all
CAN nodes.
Table 8-10 Jumper descriptions of MDCAN2
Jumper Description Meaning Setting
J2 CANopen terminal resistor
matching selection
Matching the terminal resistor
Not matching the terminal resistor
Setting of jumpers takes top view with main terminals at the bottom of the
card as visual angle. Jumpers are silk-screened on the card.