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© National Instruments Corporation 27 MID-7604/7602 Power Drive
Specifications
The following specifications apply only to the MID-7604/7602. To obtain
a system specification, you must account for your motion controller. Refer
to your controller specifications to determine overall system specifications.
Some signals have compatibility defined as signal pass-through, which
means the MID-7604/7602 may have passive filtering on these signals but
will not affect the voltage range or current handling capability. Consult
your motion controller specifications to determine the allowable voltage
range and logic level compatibility of the signal.
Stepper Amplifiers
Type .......................................................IM481H modular hybrid,
bipolar chopper
Chopping frequency...............................20 kHz
DC-bus motor.........................................24 VDC nominal
Current per phase ...................................0.20–1.4 A peak (0.14–1ARMS)
(factory setting is 0.50 A peak)
Microstepping selections........................×2, 4, 8, 16, 32, 64, 128, 256
×5, 10, 25, 50, 125, 250
(factory default is ×10
microsteps/step)
Continuous power output rating
(all axes combined)................................ 80 W continuous
Encoder Interface
Inputs......................................................Quadrature, incremental
Differential input threshold....................± 0.3V (typical)
Single ended input threshold..................TTL/CMOS
Voltage range.........................................0–5VDC
Noise filter (RC time constant).............. 100 ns
Maximum quadrature frequency............1 MHz
Limit and Home Switch Inputs
Compatibility .........................................Signal pass-through