User Manual

PD-1160 V1.1 Hardware Manual (Rev. 1.02 / 2013-JUL-23) 10
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Do not connect or disconnect motor during operation!
Motor cable and motor inductivity might lead to voltage spikes when the motor is
disconnected / connected while energized. These voltage spikes might exceed voltage
limits of the driver MOSFETs and might permanently damage them. Therefore, always
disconnect power supply before connecting / disconnecting the motor.
Keep the power supply voltage below the upper limit of 51V!
Otherwise the driver electronics will seriously be damaged! Especially, when the selected
operating voltage is near the upper limit a regulated power supply is highly
recommended. Please see also chapter 7 (operating values).
There is no reverse polarity protection!
The module will short any reversed supply voltage due to internal diodes of the driver
transistors.
3.2.2 Serial Communication Connector
The module supports RS485 and CAN communication via this connector.
CAN interface will be de-activated in case USB is connected due to internal sharing of hardware
resources.
A 2mm pitch 5-pin JST B5B-PH-K connector is used for serial communication.
1
5
Pin
Label
Description
1
CAN_H
CAN bus signal (dominant high)
2
CAN_L
CAN bus signal (dominant low)
3
GND
Module ground (system and signal ground)
4
RS485+
RS485 bus signal (non inverted)
5
RS485-
RS485 bus signal (inverted)
Table 3.3 Connector for serial communication