Analog AC servo drive systems with sinusoidal commutation Servo drives in compact design, 3 × 400/480 V mains connection Servo motors with high power density up to 48 Nm / 10 kW Components of the MidiDrive A servo drive family: BN 6682 servo drive (4 A, UDC = 560 V), MR 7434 (4.0 Nm at 6000 min–1) and MR 4106 (0.65 Nm at 6000 min–1) motors Products, Consultation, and Service ESR drive packages consist of servo drives, servo motors, position sensors, gear boxes, and brakes. They are supplemented by power supply units (if not already installed in the drive), connectors and cables (ready-assembled on request). All parts of the packages are matching and have been tested as combinations. This delivery from a single source guarantees trouble-free commissioning, reliable operation, and a definite system responsibility on the part of only one supplier. Our services include an individual drive system configuration. With many years of experience, we will be pleased to assist you at choosing the appropriate servo drive system for your application. Positioning and feed movements with high dynamics and accuracy in C Handling and assembly systems C Optical discs production machinery (CDs, DVDs, ...) C Electronics production machinery C Semiconductor production machinery C Measuring and testing machinery C Machine tools and metal working machinery C Packaging machinery C Textile machinery C Plastics processing machinery C Coiling machinery C and many other applications ESR Pollmeier GmbH www.esr-pollmeier.de

Main Characteristics Five power classes Servo drive IN UDC 2A 560 V 4A 560 V 8A 560 V 12 A 560 V 20 A 560 V Characteristics of the drive packages C High-quality drive packages consisting of drive, motor, and accessories C High dynamics due to motors with low weight-topower ratio and controllers with highest dynamics C Smooth running even at low speed because of sinusoidal commutation C CE identification, layout in compliance with the requirements of the low voltage directive (test according to EN 50178) and the EMC directive (test according to EN 61800-3) C High safety: position sensor signals...

C Bearing plates and housings made of high-quality light-metal alloy C Rotor dynamically balanced according to vibration severity grade R, S on request C Standard shaft end without groove, special version possible, e. g. with keyway C Special motors, e. g. motors with brakes, hollowshaft design available Characteristics of the gear boxes C Helical gears in standard design 1 : 6 to 1 : 129 C Planetary gears, one-, two or three-stage, low backlash on request, gear ratio 1 : 3 to 1 : 175 C Output torque up to 2400 Nm C Special gears, e. g. worm gears or bevel gears, gears with hollow shafts Design...

The operating mode of the servo drive is indicated by lighting up or blinking of 4 LEDs: C ready C overload C fault C shunt Functions of the Servo Drives Feedback control MidiDrive A servo drives work with two control loops: the current control loop and the higher-level speed control loop. Since both control loops are realized in analog technology, the controller bandwidth is very high. The MidiDrive A servo drive operates as current controller or as speed controller (with underlying current control loop) depending on the setting on the customer module. The servo drives are designed for three-phase...

to the pulses of an incremental encoder (two pulses shifted by 90º and index pulse). Thus, an incremental encoder is not required on the motor. One of the following 16 pulse numbers (incremental encoder pulses per revolution) can be selected using a coding switch: C 128, 256, 512, 1024, C 50, 100, 200, 250, 500, 1000, C 60, 90, 180, 360, 720, 900 Other pulse numbers are also available on request. The pulses are generated by 5 volts line drivers (RS 422 compatible; G1 and G3 options). A version with 24 volts pulse output is also available (G2 and G4 options). Additionally, with the G3 and G4 options...

C additional Z1 option: 2 limit switches (directiondependent, acting like brakes) C additional Z2 option: Reverse direction of rotation C additional F1 option: Hold (stop with stall torque without drift) C G3 option: 5 V push-pull, electrically isolated, adjustable index pulse (RS 422) C G4 option: 24 V signals, adjustable index pulse Switching outputs “Ready” (potential-free relay output), all other outputs PLC compatible, switching to +24 V: “Fault signal”, “Overload” C additional Z1, Z2 options: “Motor standstill” or “Power circuit ready” Encoder emulation with 16 selectable pulse numbers...

Servo drives, major technical specifications Servo drive order number Rated mains connection voltage Rated current (rms value) Maximum peak current (crest value) Current limiting adjustable from... to... Rated DC-bus voltage Permissible mains connection voltage 560 .. 680 V DC 85 .. 528 V AC (with correspondingly reduced/increased DC-bus voltage) 2A Integration time of the I²t circuit at max. peak current Maximum continuous braking power Pulse braking power at 0.75% switch-on duration, 1 s Setpoint value Operating range of speed trimmer Switching frequency / current ripple Auxiliary voltage outputs...

MidiDrive A servo drive type code Mains connection and DC-bus voltage 81 mains connection 400 .. 480 V 3-phase, corresponds to 560 .. 680 V DC-bus; output current 2 Arms 82 mains connection 400 .. 480 V 3-phase, corresponds to 560 .. 680 V DC-bus; output current 4 Arms 83 mains connection 400 .. 480 V 3-phase, corresponds to 560 .. 680 V DC-bus; output current 8 Arms 84 mains connection 400 .. 480 V 3-phase, corresponds to 560 .. 680 V DC-bus; output current 12 Arms 85 mains connection 400 .. 480 V 3-phase, corresponds to 560 .. 680 V DC-bus; output current 20 Arms Assembly code (Bauvorschrift,...