M701-08401570A
The Emerson M701-08401570A is a high-performance closed-loop AC servo drive from the Control Techniques Unidrive M701 series. Designed for large-scale, demanding precision motion control applications, this drive delivers exceptional dynamic performance and accurate speed, torque, and position regulation when used with high-power permanent magnet servo motors or induction motors with feedback. The M701 series features advanced closed-loop vector control algorithms, comprehensive feedback support, and integrated safety functions.
DESCRIBE
Technical Parameters (M701-08401570A)
Model: M701-08401570A
Series: Unidrive M701 (Closed-Loop Servo Drive)
Frame Size: 8
Continuous Current (Icont): 157.0 A (RMS)
Peak Current (Ipeak): 314.0 A (RMS) (200% overload for up to 3 seconds)
Typical Motor Power:
At 400V supply: Approx. 75 kW to 90 kW (100 HP to 125 HP)
At 480V supply: Approx. 90 kW to 110 kW (125 HP to 150 HP)
Power Supply (Mains): 3-phase, 200V to 480V AC ±10% (50/60 Hz)
Control Supply: 24V DC (external, for logic and safety circuits)
kVA Rating: Approximately 109 kVA (at 400V)
Output Frequency: 0 to 590 Hz (standard)
Control Modes: Closed-Loop Vector (Servo), Closed-Loop Vector (Induction), V/Hz
Speed Control Accuracy: ±0.01% (with encoder feedback)
Torque Control Accuracy: ±3%
Position Control: Electronic gearing, electronic camming, position indexing, homing
Feedback Interfaces (Standard): Slot-based feedback modules (options for incremental encoder, SinCos, resolver, absolute encoder)
Digital I/O: 7 x programmable digital inputs, 4 x programmable digital outputs
Analog I/O: 3 x analog inputs (16-bit, ±10V, 0-20mA), 2 x analog outputs (12-bit, ±10V)
Communication Interfaces: Standard RS485 with MODBUS RTU; Slot for optional fieldbus modules
Safety Function: Safe Torque Off (STO) compliant with IEC 61800-5-2, SIL3/PL e (standard)
Optional Safety: Supports advanced safety modules for SS1, SLS, SDI, SBC, etc.
Switching Frequency: 3 kHz, 4 kHz, 6 kHz, 8 kHz, 12 kHz, 16 kHz (adjustable, significant derating applies at higher frequencies)
Protection Class: IP20 (Open chassis - requires enclosure mounting)
Mounting Type: Through-panel mounting required for optimal heatsink cooling
Operating Temperature: 0°C to +40°C (derating above 40°C to max 50°C)
Cooling Method: Forced air cooling (high-capacity fans) with external heatsink
Dimensions (H x W x D): Approx. 950 mm x 350 mm x 350 mm (37.4" x 13.8" x 13.8") - typical for frame 8
Weight: Approx. 65 kg (143 lbs)
Standards: CE, UL, cUL, TÜV (for STO), RoHS
Typical Applications
Large-Scale Packaging: High-capacity case packing, palletizing systems
Printing and Converting: Large web printing presses, high-speed slitter-rewinders
Material Handling: Airport baggage handling, large AS/RS systems
Marine and Offshore: Winches, crane systems, thrusters
Metal Processing: Rolling mills, heavy plate handling, cut-to-length lines
Mining and Minerals: Large conveyors, crushers, grinding mills
Test Stands: Large dynamometers, engine test stands
Renewable Energy: Wind turbine pitch control, solar tracking systems
Oil and Gas: Pipeline pumps, compressors, drilling equipment