MidiDrive A
Characteristics of the MidiDrive A Servo Drives
- Analog servo drives for AC servo motors
- Compact devices for control cabinet installation, very compact design
- Particularly suitable for applications with higher-level controllers (CNC)
- Complete with built-in power supply for direct connection to 3 × 400 V / 3 × 480 V three-phase mains (wide-range input)
- Design conforms to EMC requirements due to integrated line filters (CE marked), usable in First and Second Environment according to IEC 61800-3
- Easy wiring, since all connections can be plugged in at the front
- High performance with compact dimensions thanks to use of surface mounting devices (SMT) and latest power transistors (IGBTs)
- Easy commissioning due to adjustable gain, speed, and offset
- No re-adjustment necessary when the drive is replaced thanks to plug-in customer module with all setting components
- Easily adapted to non-standard applications with plug-in option modules
- Rapid acceleration, deceleration, and reversing of servo motor by momentary current increase to double the rated current
- No noise with switching frequency well above audible range or low power dissipation with reduced switching frequency (selectable)
- 24 V control supply voltage fed externally to retain position information in an emergency switch off
- Safe operation thanks to various protection and monitoring circuits
- Drive and motor protected by adjustable I²t current limiter
- Frequent switching off and on possible thanks to rapid discharge of the DC-bus voltage in case of mains switch off (function can be deactivated)
- Easy error diagnosis with LEDs for ready, overload, fault, and shunt
- Load and speed monitoring with current and speed monitor outputs
- Available also adapted to motors of other manufacturers
Technical Specifications
| Order number | BN 6681 | BN 6682 | BN 6683 | BN 6684 | BN 6685 |
|---|---|---|---|---|---|
| Mains connection | 3 × 400..480 V ±10%, 50 .. 60 Hz (85 .. 528 V with reduced/increased DC-bus voltage) |
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| DC-bus voltage | 560 .. 680 V DC | ||||
| Rated current, rms value | 2 A | 4 A | 8 A | 12 A | 20 A |
| Peak current (crest value) | 5,5 A | 11 A | 22 A | 34 A | 55 A |
| for AC servo motors – Rated torque – Shaft power |
up to 3 Nm up to 0.8 kW |
up to 7 Nm up to 1.8 kW |
up to 17 Nm up to 4.2 kW |
up to 26 Nm up to 5.8 kW |
up to 48 Nm up to 10 kW |
| Switching frequency | 8 or 16 kHz (selectable) | ||||
| Setpoint | ±10 V for speed or torque | ||||
| Dimensions * w×h×d | 85 × 255 [275] × 200 mm | 150 × 270 [305] × 200 mm | |||
* without [with] mounting straps