E-DC Drive
Quick Reference Guide
 Motor Performance S
Input/Output Specification
Compumotor Division
Parker Hannifin Corporation
p/n 88-020592-01 A 
 (effective May 22, 2002)
INP
s
maximum input frequency:  2MHz 
minimum turn on current:  6.5mA
DIRECTION: 
  minimum setup time:   200 microseconds 
minimum turn on current:  8mA
REMOTE: 
  minimum turn on current:  3.5mA 
When in
ut is activated, drive reduces motor current
by ratio set by R
remote
 a resistor connected between
REMOTE and CURRENT, as follows: 
R
remote
 = 13,300 (3750 + R
c
)/(R
c
 - R
s
), where 
R
c
 = resistor asociated with operating current 
R
s
 = resistor asociated with desired standby current 
NOTE: for zero current
GEAR SHIFT: 
  minimum turn on current:  3.5mA 
When in
ut is activated, the drive multi
lies each
step pulse it receives by a factor of 8.
FAULT OUTPUT
 Opticall
 isolated; open collector/emitter output
 active (output turns off on a fault condition)
  To clear fault: cycle power.
  maximum collector current:  10mA
Accurac
ht:
SERIES
Hardware Installation Guide
available at: www.compumotor.com
E-DC Hardware Installation Guide
is available online in PDF format:
http://www.compumotor.com
(part number 88-020714-01)
3.555 (90.30)
3.315 (84.20)
5.000 (127.00)
4.650 (118.11)
0.175 (4.45)
1.000 (25.40)
7.000 (177.80)
Mounting Clearance
2x 0.177 
Clearance for #8 
(M4) Mountin
1.000 (25.40)
Compumotor
5500 Business Park Dr.
Rohnert Park, CA 94928
Exposed aluminum for 
electrical grounding
This surface must be thermall
REMOTE
REF
CURRENT
DUMP
VDC+
VDC-
A+
A- 
B+
B- 
PWR/FLT
!
SERIES
 K
4.49    825     1.33   2.80 K
4.43   1.02 K   1.27   3.57 K
4.37   1.27 K   1.20   4.53 K 
4.30   1.54 K   1.14   5.49 K
4.24   1.78 K   1.08   6.49 K 
4.18   2.05 K   1.01   7.68 K 
4.11   2.26 K   0.95   8.87 K 
4.05   2.55 K   0.89   10.5 K 
3.99   2.80 K   0.82   12.1 K 
3.92   3.09 K   0.76   13.7 K 
3.86   3.32 K   0.70   15.8 K 
3.80   3.57 K   0.63   18.2 K 
3.73   3.92 K   0.57   20.5 K 
3.67   4.22 K   0.51   22.6 K
3.61   4.53 K 
3.54   4.87 K 
3.48   5.11 K 
3.42   5.49 K 
3.35   5.76 K   SW3-#7 Off/#8 On
3.29   6.19 K   Current  Resistor
3.23   6.49 K   (amps*) (ohms)  
3.17   6.81 K   1.27  0
3.10   7.32 K   1.20    787
3.04   7.68 K   1.14   1.62 K
2.98   8.06 K   1.08   2.49 K
2.91   8.45 K   1.01   3.57 K 
2.85   8.87 K   0.95   4.64 K
2.79   9.53 K   0.89   5.90 K
2.72   10.0 K   0.82   7.32 K
2.66   10.5 K   0.76   8.87 K
2.60   11.0 K   0.70   10.7 K 
2.53   11.5 K   0.63   13.0 K
2.47   12.1 K   0.57   15.4 K
2.41   12.7 K   0.51   18.2 K
2.34   13.3 K   0.44   21.5 K
2.28   13.7 K  
2.22   14.3 K 
2.15   15.0 K 
2.09   15.8 K   SW3-#7 On/#8 On
2.03   16.5 K   Current  Resistor
1.96   17.4 K   (amps*) (ohms) 
1.90   18.2 K   0.50  0
1.84   19.1 K   0.38   2.21 K
1.77   20.0 K   0.32   5.36 K
1.71   20.5 K   0.25   10.0 K
1.65   21.5 K   0.19   16.2 K 
1.58   22.6 K   0.13   27.4 K
SW3-#7 Off/#8 Off 
(amps*) (ohms) Motor
3.0 S**  7.68 K    OS2HA
4.8 S** 0  OS21A, 22A
VS12B
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