AXES/PLC MODULES
POSITIONERS
CNC/OPEATOR INTERFACE
DRIVERS
Master Driver
Transistor-type drives for D.C. motors
Master Driver
Transistor-type drives for D.C. motors
Product description
The PWM transistor of the Master series is used in applications where an excellent uniformity and high dynamic response is required.
Numerous applications can be obtained due to the possibility of selecting by a switch the speed control characteristics (using dynamotachometer or feedback from armature) or the torque characteristics and there is also the possibility of utilizing acceleration and deceleration ramps.
A compact mechanical system, comprising the powering
unit, dissipator and clamp resistor, complete with options
and a complex axes limiting system make this drive the most
complete one of our DigiPower range.
Furthermore, the terminal strips and the adjustments are accessible from the front panel and permit the application both on single-axis and on multi-axis devices.
Furthermore, the terminal strips and the adjustments are accessible from the front panel and permit the application both on single-axis and on multi-axis devices.
Main Features
Regulations
Protections Against
Control Inputs
Control Outputs
Main Features
- Three-phase or single-phase powering
- Version for fitting to a switchboard or to double
- Eurocard rack
- Operation at 30°C ambient temperature without derating of current
- Tolerances on power voltages: +15% to -30%
- Analog differential input +/- 10V
- Switching rate: 10 kHz
- Operation signalling by leds
- Peak current two times the rated current for 2 seconds with limitation to real 12t
Regulations
- Presetting of rated current
- Presetting of peak current
- Presetting of voltage value for the dynamotachometer
- Constant derivative action
- Dynamical gain
- Speed offset
- Acceleration and deceleration ramps
- Armature feedback speeds
Protections Against
- Overvoltage and und ervoltage
- Overtemperature
- Anomalous internal voltages
- Short-circuit on motor terminals (between themselves or to the ground)
- Fault on tachometer
- Failure of one power phase
Control Inputs
- Drive enabling
- Speed reference
- Axes limit-switches
- Ramps disabling
Control Outputs
- Drive OK with isolated contact (0.5 A / 250 Vac)
- Piloting of an external clamp
- Test-point for detecting the real motor current
- Output for energy recovery in multi-axis systems
Options Available
Overall Dimensions
Accessories
Applications
Options Available
- Protection against tachometer fault
- Acceleration and deceleration ramps
- Armature feed-back compensated in current
Overall Dimensions
81 (w) x 235 (d) x 275 (h) mm – Model 18A
92 (w) x 235 (d) x 275 (h) mm – Model 25/28A
92 (w) x 235 (d) x 275 (h) mm – Model 25/28A
Accessories
- Power transformers
- Inductances
- Rack for multi-axis systems (with ventilation on request)
Applications
- Travel motions for lathes, milling machines, grinders
- Positioning of rotary tables
- Table positioning on X and Y
- Industrial robots
- Spring winding machines
- Woodworking machines
- Packaging machines
| Template | Nominal Current | Input Current | Nominal Tension |
|---|---|---|---|
| MASTER 18/150 | 18A | 36A | 150V |
| MASTER 18/200 | 18A | 36A | 200V |
| MASTER 25/150 | 25A | 50A | 150V |
| MASTER 25/200 | 25A | 50A | 200V |
| MASTER 28/150 | 28A | 56A | 150V |
| MASTER 30/200 | 30A | 60A | 200V |
| MASTER 32/150 | 32A | 64A | 150V |
| MASTER 40/150 | 40A | 64A | 150V |
| MASTER 40/200 | 40A | 64A | 200V |