4122Z - Copley Controls 4122Z - DC Brush Servo Amplifier Simple Type:...
- Part Number:
- 4122Z
- Model Number:
- 4122Z
- Make:
- COPLEY CONTROLS
- Lead Time:
- Available
- Qty In Stock:
- Available
Copley Controls 4122Z - DC Brush Servo Amplifier Simple Type: Servo Controller
“Z” versions of 4122 and 4212 models feature 50% modulation that delivers no zero-current deadband for applications that require fine motion around zero such as voice coil motors, laser focusing, and wire bonding. Models are mechanically identical to 4122 and 4212 types so that system builders can ‘mix and match’ with a common mounting scheme. Built using surface-mount technology, these amplifiers offer plug and play operation in a very small package. All models take industry standard ±10V control signals as input, and operate motors in torque mode, or velocity mode using analog brush tachometers. Velocity loops using brush-tachometer feedback are used for open-loop speed controls, or in position control loops requiring improved regulation at low speeds. Model 4122Z operates from +22 to +90VDC unregulated power supplies, and outputs 10A continuous, 20A peak. Model 4212Z operates from +22 to +125VDC power supplies, and outputs 6A continuous, and 12A peak. The active logic-level of the amplifier Enable input is jumper selectable to GND or +5V to interface with different control cards. /Pos and /Neg enable inputs remain ground active for fail-safe operation. Mosfet H-bridge output stage delivers power in four-quadrants for bi-directional acceleration and deceleration of motors. An internal solderless socket holds 17 components that configure the various gain and current limit settings to customize the amplifiers for a wide range of loads and applications. Header components permit compensation over a wide range of load inductances to maximize bandwidth with different motors. Individual peak and continuous current limits allow high acceleration without sacrificing protection against continuous overloads. Peak current time limit is settable to match amplifier to motor thermal or commutation limits. All models are protected against output short circuits ( output to output and output to ground ) and heatplate overtemperature. With the /Reset input open, output shorts or heatplate overtemperature will latch off the amplifier until power is cycled off & on, or until the /Reset input is grounded. For self-reset from such conditions, wire /Reset to ground and the amplifier will reset every 200ms. A bicolor led speeds diagnostics during set-up, or for fault isolation after the unit is in service.
For Resellers and High Volume Orders:
Please request a quote to obtain preferred pricing.
Features
- 3kHz Bandwidth
- Component socket configures amp completely
- Fault protections: Short-circuits from output to output, output to gnd Over/under voltage Over temperature Self-reset or latch-off modes
- Flexibility! Internal 40-pin socket configures amp with no soldering
- No integrator windup when disabled
- No zero-current deadband
- Only one potentiometer
- Separate current limits: Continuous, peak, and peak-time
- Surface mount technology construction, lower part count.
- Wide load inductance range: 0.4-40 mH.
Specifications
- Amplifier case size: 3.0 x 4.3 x 1.0 in. ( 76.2 x 109.2 x 25.4 mm.)
- BANDWIDTH: Current mode: 3kHz with 1mH load at maximum supply voltage, varies with load inductance and RH15, CH16 & CH17 values
- LOAD INDUCTANCE: Selectable with components on header socket: 400 µH to 40mH ( lower inductance with derating )
- Logic Input - Input resistance: 100K pull-up to +5V, 10k/33nF R-C filters to internal logic (74HC14 Schmitt trigger gate)
- Logic Input - Input voltage range: 0 to +24V
- Logic Input Enable (Internal jumper JP1 reverses logic): LO enables amplifier, HI disables (<1ms to enable and disable) (Default function with JP-1 on pins 2-3. For +5V enable and GND inhibit, move JP1 to pins 1-2)
- Logic Input Logic threshold voltage (LO to HI transition): 2.5V (Schmitt trigger inputs with hysteresis)
- Logic Input POS enable, NEG enable: Gnd enables positive or negative output currents. +5V or open inhibits (<1ms delay.) (Setting of JP-1 has no effect on ground-active level of /POS and /NEG enable inputs)
- Logic Input Reset: LO resets latching fault condition, ground for self-reset every 200 ms.
- MODULATION TYPE: H-bridge duty cycle is 50% at zero output voltage; 3% and 97% at positive & negative peak output voltage.
- PWM SWITCHING FREQUENCY: 25kHz
- REFERENCE INPUT: Differential, 94K between inputs, ±20V maximum
- Weight: 0.59 lb (0.27 kg.)
Applications
- None Available
Aliases
- None Available
