TMCM-343 Hardware Manual (V1.07 / 2011-JUN-08)
10
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
TMCM-343
V_ Motor
(7...34V)
GND
+
C
L
+
Power supply
keep distance short
TMCM-343
V_ Motor
(7...34V)
GND
+
C
L
keep distance short
ke
ep
d
is
ta
n
ce
b
el
o
w
a
fe
w
m
et
er
s
w
it
h
a
s
in
gl
e
p
o
w
er
s
u
p
pl
y
CAN high
CAN low
CAN high
CAN low
other devices on CAN
bus (incl. master)
CAN high
CAN low
V_ Motor
(7...34V)
GND
+
C
L
CAN_GND
CAN_GND
CAN_GND
-
Figure 5.5: Power supply requirements for TRINAMIC modules in a bus system
In large systems it may make sense to use an optically decoupled CAN bus for each number
of nodes, e.g. for each base board with a number of TMCM-34x modules, especially when a
centralized power supply is to be used.
Be aware that different ground potentials of the CAN sender (e.g. a PC) and the power supply
may damage the modules.
Please make sure that the GND lines of the CAN sender and the module(s) and power
supplies are connected by a cable.
