412

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The 412 is a DC servo amplifier offering a peak power of ~20A at ~80V, with customizable load inductance ranging from 200 uH to 40mH. From Copley Controls' DC Servo Amplifiers, it features a 3kHz current mode bandwidth and protective shutdown at 70 degrees C. The amp's PWM switching frequency is set at 25kHz.

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Product Description:

The design of the 412 DC servo amplifier from Copley Controls includes mechanical brushes. With a quick setup process, the device has 3 speed diagnosis LEDs for different statuses at the time of installation. The unit is equipped with five potentiometers. It is protected against output-to-ground and output-to-output short circuits. This amplifier comprises an internal 40-pin header socket.

The product is used in magnetic bearings and automatically guided vehicles. When functioning in voltage-feedback mode, this DC amplifier attains a bandwidth of 200Hz at its peak. The unit comes preset with a 100% continuous current limit when the RH16 resistor is in open mode. Its header component controls the length of time for which it will output the peak current limit. It offers twice the peak time current of a unipolar current shift following a change in polarity. To minimize noise interference, it's recommended to use twisted shielded pair cable for the reference inputs and its tachometer. It is not equipped with any heatsink and is designed to work with a voltage rating between 24 and 90VDC.

This amplifier has switch-selectable active logic levels for its Enable inputs. The product operates with an unregulated power supply. For input, this amplifier uses a +/-10Vs control signal. The unit requires no soldering to change the parts of its header. The load inductance ranges from 0.2 mH to 40 mH. By default, the integrator ON/OFF switch in this amplifier is set to ON position. However, the LO/HI Enable switch is by default set to OFF. These default settings are intended to help the users with the setup process.

Continuous Output Current
~10 A @ 80 V
Current Mode Bandwidth
3 kHz
Current Monitor Output
~6 V at peak current
Differential Amplifier Gain
1:1 V/V
LED Indicators
Normal, Power OK, Fault
Load Inductance Range
200 µH to 40 mH
Logic Input Threshold
2.5 V
Logic Input Voltage Range
0 to +24 V
Logic Outputs
Fault/Normal, TTL-level
Max Reference Voltage
20 V
Output Voltage Formula
Vout = 0.97·HV - 0.2·Io
Overtemperature Shutdown
70 °C
Peak Output Current
~20 A @ 80 V
PWM Switching Frequency
25 kHz
Reference Input Impedance
100 kΩ
Reference Input Type
Differential
Short-circuit Detection
Yes
Voltage-feedback Mode Bandwidth
200 Hz

Frequently Asked Questions about 412:

Q: How can the 412 servo amplifier be used for responsive and precise motor control?

A: The 412 servo amplifier can be used for responsive and precise motor control using advanced control algorithms.

Q: What medical devices can the 412 servo amplifier be used in?

A: The 412 servo amplifier can be used in laboratory automation equipment, imaging systems, and surgical robots.

Q: What are the three LEDs of the 412 servo amplifier?

A: The three LEDs of the 412 servo amplifier are Normal, Fault, and Power OK.

Q: What is the input voltage range of the 412 logic inputs?

A: The input voltage range of the 412 logic inputs is 0 V to +24 V.

Q: How is the load inductance of the 412 servo amplifier selected?

A: The load inductance of the 412 servo amplifier is selected using the components on the header socket.


Internal Product Review

  • ‘‘The 412 servo amplifier has multiple logic inputs and potentiometers to support a wide range of applications. It comes with a comprehensive diagnostics system. The amplifier is compatible with different types of DC brush motors. ’’

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