ST 151

Stepper Motor Output Stage

  • +50 V DC/5 A continuous current
  • Full step, half step and micro step (up to 64x)
  • 1 brake chopper
  • 1 incremental encoder input RS485/TTL switchable
  • 2 enable inputs with STO function
  • 2 latch / digital input for the reference profile and for monitoring the end positions

For the S-DIAS system, EPLAN Macros are available for simple integration into the control cabinet.

Technical data

Digital inputs

Amount
2
Input voltage
+24 V DC (+18-30 V DC)
Type
Latch/Digital Input
Input current
3.7 mA at +24 V DC
Input delay
typically 10 µs

Digital inputs

Amount
2
Input voltage
+24 V DC
Type
Enable
Input current
3 mA at +24 V
Input delay
typically 0.5 ms

Incremental encoder inputs

Amount
1
Input signals
Incremental encoder signal RS422 (A, /A, B, /B, R, /R)
RS422 signal (150 Ω termination)

Incremental encoder signal TTL (A, B, R)
TTL signal (1200 Ω Pull-Up)
Input frequency
6
Encoder supply
+5 V DC/0.2 A short-circuit proof

Braking resistors

Output
GND-switching
Max. Current
6 A

Mechanical properties

Width (mm)
25
Height (mm)
103,5
Depth (mm)
72
Protection type
IP20

Article number / Certification

Item number
20-014-151
Standardization / Certification
UL 61800-5-1 (E336350)
We MaxUp Your Automation
© 2026 SIGMATEK GmbH & Co KG