The 2035 step motor drive is a full or half step driver capable of supplying 0.125-2.0 amps at 12-35VDC to step motors. It features optically isolated inputs, switch selectable current and stepping resolution, and PWM current control at 20-30kHz. The drive is suitable for various size 11, 14, 17, and 23 step motors.

1. STEPPER
DRIVES
2035 Step Motor Drive
Full & Half Stepping
2.0 amps, 35 VDC
Features
• DC bus voltage 12-35 VDC motor supply (includ-ing
ripple)
• Switch selectable motor current from 0.125–2.0
amps/phase
• Switch selectable full or half step
• Switch selectable idle current reduction, 0 or
50%
• Optically isolated 5–24 VDC inputs for step, di-rection
and enable
• Enable input to turn off current to the motor
• 70 watts of usable power
• Screw terminal connectors
• Dual H-bridge, inaudible PWM amplifier
• 3 state, pulse width modulated current control,
switching at 20–30 KHz
• Drives 4, 6 or 8 lead size 11, 14, 17 or 23 step
motors
• CE compliant
Description
The 2035 step motor driver is a full or half drive, step
phase sequencer with three state switching amplifi-ers
and optoisolated circuits. The drive also includes
an automatic feature to lower motor current by 50%
anytime the motor is left at rest for more than one
second. This feature can be disabled.
The amplifier regulates motor current by chopping
at a constant, inaudible frequency. Phase current is
selected from 16 levels by a DIP switch. Full or half
resolution is switch selectable.
Recommended motors for the 2035 drive:
Size 11 Size 14 Size 17 Size 23
———— ———— ———— ————
HT11-012 5014-842 HT17-068 HT23-394
HT11-013 HT17-071 HT23-397
HT17-075 HT23-400
2035 Step Motor Drive
MECHANICAL OUTLINE
2.50"
0.125"
3.75"
3.00"
4.00"
0.25"
0.15"
4x Ø.125
3.70"
1.50"
0.25"
.875"
2x Ø.125
BLOCK DIAGRAM
Optical
Isolator
enable
step
com
direction
Step
Sequencer
50% idle
current setting
full step/
half step
2 3 4 5
step
12-35 VDC
dir
A+
A–
B+
B–
to
motor
Optical
Isolator
1
Amplifier
Optical
Isolator
Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com

2. STEPPER
DRIVES 2035 Torque Curves
15
10
00 5 10 15 20 25 30 35 40
35
30
25
20
15
10
00 5 10 15 20 25 30 35 40
HT17-075 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 1.75 A/Phase
Dynamic
Torque
(oz-in)
60
50
40
30
20
00 5 10 15 20 25 30 35 40
rev/sec
10
35 V
24 V
10
00 5 10 15 20 25 30 35 40
25
20
15
10
00 5 10 15 20 25 30 35 40
40
30
20
00 5 10 15 20 25 30 35 40
HT23-394 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 2.0 A/Phase
Dynamic
Torque
(oz-in)
40
32
24
16
00 5 10 15 20 25 30 35 40
rev/sec
8
35 V
24 V
HT23-397 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 2.0 A/Phase
120
100
Dynamic
Torque
(oz-in)
80
60
40
00 5 10 15 20 25 30 35 40
rev/sec
20
35 V
24 V
HT23-400 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 2.0 A/Phase
200
150
Dynamic
Torque
(oz-in)
100
00 5 10 15 20 25 30 35 40
rev/sec
50
35 V
24 V
HT11-012 MOTOR
Motor Connection: 4 Lead Bipolar
Drive Setting: Full Resolution • 1.0 A/Phase
Dynamic
Torque
(oz-in)
rev/sec
5
35 V
HT11-013 MOTOR
Motor Connection: 4 Lead Bipolar
Drive Setting: Full Resolution • 1.0 A/Phase
Dynamic
Torque
(oz-in)
rev/sec
5
35 V
5014-842 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 1.0 A/Phase
Dynamic
Torque
(oz-in)
rev/sec
5
35 V
24 V
HT17-068 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 1.375 A/Phase
Dynamic
Torque
(oz-in)
rev/sec
5
35 V
24 V
HT17-071 MOTOR
Motor Connection: Parallel
Drive Setting: Full Resolution • 1.625 A/Phase
Dynamic
Torque
(oz-in)
rev/sec
10
35 V
24 V
Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com