PERFORMANCE
Servo loop cycle time:
DMC-1710: 125 µsec
DMC-1720: 125 µsec
DMC-1730: 250 µsec
DMC-1740: 250 µsec
DMC-1750: 375 µsec
DMC-1760: 375 µsec
DMC-1770: 500 µsec
DMC-1780: 500 µsec
Block execution time: In contour mode,
up to 500 blocks (moves)/sec with
full trajectory calculation.
Position accuracy: ±1 quadrature count.
Velocity accuracy:
Long-term: phase-locked, better than
.003%.
Short-term: system dependent.
Synchronization: All axes in the same
card are perfectly synchronized
and share the same servo cycle.
All cards sharing synchronization
signal are perfectly synchronized
in the same servo cycle.
Position capture accuracy: 40 µsec with
optoisolation; .1 µsec if by-pass
optoisolation.
PARAMETER RANGES
Position range: ±2,147,483,647
counts/move; automatic rollover;
no limit in jog or vector modes.
Velocity range: Up to 12,000,000
counts/sec in servo mode.
Acceleration/deceleration: 1,024 to
67,107, 840 c/sec
2
.
Error limit: 32,767 counts
Gear ratio: 127.9999
Filter constants:
Kp: 0 to 1023.875
Kd: 0 to 4095.875
Ki: 0 to 2047.875
Pl: 0 to .9999
Motor command resolution: 16 bits or
.0003 V
Step motor control mode: Full, half or
microstep
Step pulse frequency: 3,000,000 pulses/sec
Number of variables: 254
Array size: 8000 elements in up to 30
arrays
Memory size: 1000 lines
×
80 characters
INPUTS/OUTPUTS
Feedback: Two channels of A/B quadra-
ture per axis with third channel for
index. In servo mode, includes auxil-
iary encoder inputs for each axis.
Single-ended or differential. Can be
configured for quadrature or pulse
and direction. Option for analog
feedback or absolute encoders.
General purpose inputs:
DMC-1710 thru 1740: 8 optoisolated
inputs--active high or low
DMC-1750 thru 1780: 24 total
inputs (16 optoisolated, 8 TTL)
General purpose outputs:
DMC-1710 thru 1740: 8 TTL outputs
DMC-1750 thru 1780: 16 TTL outputs
General purpose analog inputs: 8 inputs;
± 10 V; 12-bit resolution.
16-bit optional.
Dedicated outputs per axis: Analog motor
command, pulse and direction,
amplifier enable, encoder output
compare (one total).
Axes: Up to 8 axes per card.
POWER REQUIREMENTS
+5V
750 mA
+12V
40 mA
-12V
40 mA
OPERATING TEMPERATURE
0° to 70° C
PHYSICAL
10.25"
×
4.8"
(DMC-1710 thru DMC-1740)
13.25"
×
4.8"
(DMC-1750 thru DMC-1780)
COMMUNICATION INTERFACE
Primary Communications Channel.
Bi-directional high speed FIFO
used for sending commands and
receiving responses from com-
mands and application programs.
Secondary Communications Channel.
Can be used in two modes:
1. DMA--places a record in mem-
ory of PC at a fixed rate.
2. Polling--provides record on
demand.
In both modes the record is in
binary format and contains infor-
mation on position, position error,
torque, velocity, switches, inputs,
outputs, and status.
SOFTWARE INTERFACE
Plug and Play for Windows 95.
Utilities for DOS, Windows 3.1,
95 and NT. Configurable for non-
Plug and Play mode.
Continued on the next page.
Specifications
M O T I O N C O N T R O L L E R S
ISA BUS
DMC-1700
DMC-1700 ISA Bus Controller
23
