C
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A T H
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A N U A L
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E V
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1 . 9 7
1 5
G
ETTING
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ELECTING A
P
OWER
S
UPPLY
TARTED
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ClearPath motors can be powered from 24–75VDC power supplies,
however the actual minimum voltage and current that will sufficiently
power a ClearPath in a given application is highly dependent on the
application requirements (i.e. how much torque and speed is required) as
well as motor winding and magnet configuration.
Teknic power supplies have been extensively tested and widely used in
ClearPath applications, but third-party (non-Teknic) power supplies can
be used as well. See next page for Teknic power supply overview; please
visit the Teknic website for power supply features, specifications, and
pricing.
C
LEAR
P
ATH
P
OWER
S
UPPLY
V
OLTAGE
S
PECS
R
ECOMMENDED
O
PERATING
V
OLTAGE
:
24–75VDC
Note: Always operate ClearPath within the recommended operating
voltage range (24VDC to 75VDC). Absolute min and max voltage values
are provided in the specifications appendix for reference purposes and
should not construed as recommended operating voltages. Note: All
voltage measurements should be taken directly at the ClearPath power
connector.
The ideal ClearPath power supply…
…is capable of delivering high peak current and handling back-EMF
(reverse voltage generated by the spinning motor that "cancels” a portion
of the incoming supply voltage). A power supply specifically designed for
motor drive power—like Teknic’s “Intelligent Power Center” supplies
(IPC-3 and IPC-5)—will have these features, and are ideal for servo
systems like ClearPath. “Bulk” linear power supplies—basically a
transformer, rectifier, and large capacitor—can also work adequately.
Normal switching-mode power supplies are not generally the best choice.
Important: Thoroughly test your ClearPath application with the
intended power supply under worst case, full load conditions to ensure
sufficient power capacity and adequate operating margin.
Why you should avoid (most) switching power supplies
Switching power supplies are typically not well suited to high power servo
applications because they generally have the same peak and continuous-
current ratings. This can lead the user to purchase a large but ultimately
under-worked power supply just to meet peak current requirements.
In addition, most switchers are not designed to handle the regenerated
energy (back-EMF) that a decelerating motor returns to the power supply.
Without special provisions, regenerated energy can cause a switching
supply to reset, power cycle, shut down, or even fail.
T
EKNIC
,
I
NC
.
F
AX
(585)784-7460
V
OICE
(585)784-7454
Содержание ClearPath
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