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Interface/Communication
Performance
Amplifier
Environmental Specifications
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Connector
Drive connector:
9 pin D-subminiature plug.
Mating connector:
9 pin D-subminiature receptacle
RS-232:
Rx, Tx, Gnd
9600 baud
8 data bits
1 stop bit
no parity
full duplex
Accuracy:
±5 arc min (0.0833°), typical unloaded bi-directional with Compumotor
motors. Other motors may have different absolute accuracy.
±1 arc minute (0.0167°), loaded in addition to unloaded accuracy, per
each frictional load equal to 1% rated torque.
Repeatability: ±5 arc sec (0.0014°), typical unloaded one revolution returning to starting
point from same direction
Hysteresis:
Less than 2 arc min (0.0334°) unloaded bi-directional
Resolution:
User definable integer value between 200 and 128,000 steps per
revolution
Waveform:
-20% through 10%, 0.01% resolution, continuously variable, 3
(use DWAVEF command)
Type:
20 kHz fixed frequency, variable duty cycle PWM, current controlled,
recirculating, bipolar type, MOSFET construction.
2 Phases:
bipolar motor configuration only.
Auto Standby: When enabled, motor current reduces to a percentage of present value
(defined by DAUTOS command), when no step pulses are received for
one second. Default is disabled (no current reduction). See DAUTOS
command.
Operating Temperature:
Storage Temperature:
Humidity:
Shock:
Vibration:
RS-485:*
4-wire plus ground (Rx+, Rx-, Tx+, Tx-, Gnd)
9600 baud
8 data bits
1 stop bit
no parity
full duplex
*twisted pair cabling recommended (e.g. Belden 9842)
Still Air:
45°C (113°F) maximum
Moving air:
50°C (122°F) maximum
Minimum:
0°C (32°F)
-40°C – 85°C (-40°F – 185°F)
0 – 95%, non-condensing
15g, 11msec half sine
10 – 2000 Hz at 2g
Appendix A – Specifications
rd
harmonic,
51
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