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Products  Power
Supplies
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PS24V8A
& PS42V6A
Servida
linear, unregulated DC power supplies
provide power for servomotors and controllers. These power supplies
are more reliable and cost-effective than regulated power supplies
of similar size.
The PS24V8A is the answer to the low voltage safety requirements
many customers must meet. The PS24V8A is a 24 VDC 8A (rated) linear
power supply, perfect for most low power applications.
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The
PS42V6A is a 42 VDC, 6A (rated) version of the same design. Higher
voltage allows use of different motors and higher motor velocities.
Depending on application demand, Servida power supplies can be used
to supply several controllers or Servida
Motors. These power supplies have AMP-type
circular connectors for compatibility with Servida
custom cables.
Be advised these supplies are not shunted. Applications causing sustained
back drive can cause the supply voltage to rise and exceed the Servida
Motor’s input voltage specification and
in turn, cause damage.
Includes 1, KITDC - connector kit.
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PS24V20A
- OF
The PS42V20A-OF is a linear, unregulated open frame
power supply that provides DC power for Servida
Motor products. This power supply is
more reliable and cost-effective than regulated switching power
supplies of the same output capability. If the DC output voltage
is less than 50 VDC, then the PS42V20A-OF is the low voltage safety
solution.
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The
typical voltage output is 42VDC and can source a maximum of 20 amps,
continuous current. The PS42V20A-OF is equipped with an easily accessible
AG3 type fuse. A 10A, 250 VAC fuse is included as standard. Add the
suffix – S100W to the part number in order to include an integrated
42V, 100 watt, power clamp shunt circuit to power source.
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SHUNT
This SHUNT42V100W is a voltage clamp circuit to protect
the Servida Motor power circuit when the Servida Motor is back driven.
When the Servida
Motor is idle or powered off, the motor
shaft can be driven by external force. For example, let’s assume
the Servida
Motor is connected to the belt conveyer
system: while motor is off, maintenance personnel may pull the conveyer
belt by hand. If this happens, the Servida
Motor becomes a generator and starts
pumping energy back into the power supply.
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This in turn causes the power supply voltage to rise. The older versions
of Servida
Motors have a 51V protection diode at
the power input. If the input voltage exceeds 51 volts, this diode
trips to protect the Servida
Motor power circuit. If the duration
of the excess voltage is long, the protection diode itself will fail
short to protect the electronics. Newer Servida
Motors don’t have this protection diode,
but if the input voltage exceeds the rating, the power circuit inside
the Servida
Motor may be damaged.
The SHUNT42V100W can be inserted between the DC power supply and the
Servida
Motor and it will monitor the power voltage.
If the voltage exceeds the threshold, it starts clamping the voltage
to safe level.
This SHUNT42V100W is designed for 42V application but can be used
for 24V application.
Also available is the SHUNT42V200W, which is a 200watt version.
Includes 2, KITDC - connector kits.
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