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CAN Communication Wiring
The CAN bus connection of all pumps is shown in the following gure.
Figure B-3 CAN bus connection of all pumps
Note
•
User shielded twisted pair (STP) cables for the CAN bus connection.
•
Connet the CANH and CANL terminals on the control boards of all drives together, and connect the CGND
terminal together through the shield.
•
The rst drive and the end drive at the CAN bus must connect the CAN communication terminal resistor
through the jumper J4.
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Parameter Settings for Slave Pump Response to Master Pump Reference
Function Code Parameter Name Default Description
A3-32 Slave min. input 0.0% The slave pump drive setting
A3-33 Corresponding setting of slave min. input 0.0%
A3-34
Slave medium input 0.0%
A3-35 Corresponding setting of slave medium input 0.0%
A3-36 Slave max. input 100.0%
A3-37 Corresponding setting of slave max. input 100.0%
The setting of A3-32 to A3-37 can implement automatic pressure relief of the slave pump when the master pump is
in the low-speed pressure holding state, avoid occurrence of holding high pressure on the slave pump and ensure
the system ow linearity.
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