Technosoft IDM240-5EI - CAN Communication - J10 Connector

© Technosoft 2011 50 IDMx40 Technical Reference
3.2.6.1 Recommendations for RS-232 Wiring
a) If you build the serial cable, you can use a 3-wire shield cable with shield connected to BOTH
ends. Do not use the shield as GND. The ground wire (pin 5 of Sub-D 9) must be included
inside the shield, like the RxD and TxD signals
b) Do not rely on an earthed PC to provide the IDMx40 earth connection! The drive must be
earthed through a separate circuit. Most communication problems are caused by the lack of
such connection
c) Always power-off all the IDMx40 supplies before inserting/removing the RS-232 serial
connector.
CAUTION!
DO NOT CONNECT/DISCONNECT THE RS-232 CABLE
WHILE THE DRIVE IS POWERED ON. THIS OPERATION
CAN DAMAGE THE DRIVE
3.2.7. CAN Communication – J10 Connector
Pin Name Type Function
1 CAN_V+ I +24 V
DC
(optional +5 V
DC
) isolated supply input
2 CAN_H I/O CAN-Bus positive line (positive during dominant bit) (see Notes)
3 CAN_L I/O CAN-Bus negative line (negative during dominant bit) (see Notes)
4 CAN_GN
D
- Reference ground for CAN_L, CAN_H and CAN_V+ signals
CAUTION!
THE CANBUS CONNECTOR SIGNALS ARE ELECTRO-
STATICALLY SENSITIVE AND SHALL BE HANDLED ONLY
IN AN ESD PROTECTED ENVIRONMENT.
Remarks:
a) The CAN network requires two 120
Ω termination resistors even for short cables. These
resistors are not included on the drive.
b) All 4 CAN signals are fully insulated from all other IDMx40 circuits (system ground –
GND, IO ground – 0VPLC and Earth). Therefore, the CAN network requires a separate
supply