7225AC

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The 7225AC DC servo amplifier from Copley Controls features a peak power rating of 20 A at 110V. This model, part of the DC Servo Amplifiers, accommodates mains voltage ranging from 32 to 132VAC and peaks at 16 A current. It employs a differential reference input and operates with a PWM frequency of 25kHz.

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Product Description:

Manufactured by Copley Controls, the 7225AC brushless servo amplifier is a line-powered AC amplifier. This amplifier is used with AC brushless motors. The product does not need any transformer to support its operation. This device has a MOSFET output stage that delivers power in a four-quadrant format. The unit is designed to synthesize the current command for the W winding of the motor. It works with a wide range of controllers. This amplifier incorporates plug-and-play operation.

The product must be connected to a power supply that can support its continuous current rating. This device comes with an inductance of 1 mH set by default. The unit uses a DIP switch with Off as the default position to control the active level of its Enable input. Its reference inputs function as command signals. This amplifier depicts a +5 V output signal when it is not current limiting. The product features multiple fault protection measures. This device portrays a conservative design. The unit has a high MTBF rate. It performs a latch-off action when the Reset input is in the open state.

This amplifier can be customized for various applications and loads. The product can be fitted with an external regenerative energy dissipater when it is used with high inertia loads. This device has a peak time of 2 seconds at peak power regardless of polarity reversal. The unit has a minimum power dissipation of 17 W. It comes with a bicolor status LED that flashes and changes color to indicate its operating status. This brushless servo amplifier features optical isolation for its signal and power stages to minimize the possibility of interference.

Continuous Power
10 A @ 130 V
Dimensions
7.50×6.94×2.72 in (190×174×69 mm)
Enable Input Active Polarity
GND enables, open/+5 V inhibits
External Mains Fuse Rating
20 A @ 125 V
Inrush Current (startup)
19 A
Mains Current
16 A
Mains Voltage
32-132 VAC, 47-63 Hz
Min. Load Inductance
400 μH
Motor Temperature Sensor
NC bimetal: closed=normal, open=overtemp
On-resistance
0.2 Ω
Operating Temp. Range
0 to 70 °C (baseplate)
Peak Power
20 A @ 110 V
PWM Frequency
25 kHz
Reference Input Impedance
47-94 kΩ
Reference Input Type
Differential
Reference Input Voltage Max
±20 V
Weight
3.71 lb (1.69 kg)

Frequently Asked Questions about 7225AC:

Q: How does the current limiting of the 7225AC servo amplifier take place?

A: The current limiting of the 7225AC servo amplifier takes place through an internal solderless header socket.

Q: What are some adjustments supported by the 7225AC servo amplifier?

A: Some adjustments supported by the 7225AC servo amplifier are transconductance, inductance compensation, and offset.

Q: What kind of connectors does the 7225AC servo amplifier have?

A: The 7225AC servo amplifier has Sub-D motor and signal connectors.

Q: What is the voltage rating of the 7225AC servo amplifier?

A: The voltage rating of the 7225AC servo amplifier is 32 VAC to 132 VAC.

Q: What is the continuous current rating of the 7225AC servo amplifier?

A: The continuous current rating of the 7225AC servo amplifier is 10 A.


Internal Product Review

  • ‘‘The 7225AC brushless servo amplifier has a low bandwidth. It is ideal for a wide range of industrial applications. The amplifier is protected against short circuit.’’

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