C
LEAR
P
ATH
-EC
U
SER
M
ANUAL REV
1.11
45
P
OWER
S
UPPLY
S
WITCHING AND
F
USING
P
OWER
S
UPPLY
C
ONTROL
S
WITCH
The power supply for a ClearPath should not be switched on and off from
the DC output side. Switching the DC output side, especially with
inexpensive relays, will ultimately result in poor performance (drop outs)
due to pitting, corrosion and contact welding. If a power switch is
required, install it such that the supply is disconnected from the AC input
side (see figure below).
P
OWER
S
UPPLY
F
USING
If you require an external fuse on your power supply’s DC output (to meet
compliance standards for example) it should be installed in line with the
positive leg of the DC output wiring Use a maximum 10A time delay fuse.
FAQ:
"W
HAT SIZE
DC
B
US
M
OTOR
P
OWER
S
UPPLY SHOULD
I
USE
?"
Our engineers are asked this question all the time, and the short answer
is: "it depends".
The exact power requirements for a given machine depend on several
interrelated factors, including the number and type of motors and drives
connected to the supply, the torque and speed requirement for each
motor, environmental factors, and more.
Calculating the torque requirement for just a single axis can be
challenging. This involves analysis of gearing, loading (both static and
dynamic), reflected inertia, gravitational effects, friction, target
accelerations, velocities, and machine throughput requirements.
Analyzing the machine as a system, i.e. as a group of axes working
together under all possible operational conditions adds even more
complexity. At the systems level, factors such as axis duty cycle, effects of
synchronous motion, and regenerated energy come into play.
in the end, selecting a power supply often begins with an educated guess
followed by real-world testing. If you need to power several motors
running at high speed and high torque, consider using a Teknic IPC-5,
75VDC power supply. Start with one supply but keep in mind that you can
add another supply later if your application requires more power. If your
machine is a single axis moving a light load at relatively low speed, a less
powerful supply will probably suffice. Just be aware that testing is the best
way to be sure you have a good power supply solution.
T
EKNIC
,
I
NC
. T
EL
.
(585)
784-7454
To Next Page
Loading...
