SIGMA TEK ST 151 User manual

ST 151
S-DIAS Stepper Motor Output
Stage
Date of creation: 23.10.2017
Version date: 02.12.2019
Article number: 20-014-151-E

Publisher: SIGMATEK GmbH & Co KG
A-5112 Lamprechtshausen
Tel.: [phone]
Fax : [phone]
Email: [email protected]
WWW.SIGMATEK-AUTOMATION.COM
Copyright © 2017
SIGMATEK GmbH & Co KG
Translation from German
All rights reserved. No part of this work may be reproduced, edited using an electronic system, duplicated or dis-
tributed in any form (print, photocopy, microfilm or in any other process) without the express permission.
We reserve the right to make changes in the content without notice. The SIGMATEK GmbH & Co KG is not responsi-
ble for technical or printing errors in the handbook and assumes no responsibility for damages that occur through
use of this handbook.

S-DIAS STEPPER MOTOR OUTPUT STAGE ST 151
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S-DIAS Stepper Motor Output Stage ST 151
with 1 stepper motor output stage 50 V/5 A
1 brake chopper
1 incremental encoder input RS485/TTL switchable
2 enable inputs +24 V/3.2 mA/0.5 ms with
STO function
2 latch/digital inputs+24 V/3.7 mA/10 µs
The S-DIAS stepper motor output stage allows the connection of
2-phase stepper motors with a phase current up to 5 A. In the
standard step frequency mode, the operating modes half step,
full step and micro step (up to 64x) is supported.
The integrated brake chopper provides the connection for an
external regen resistor, with which excess energy generated by
the braking process of the motor can be dissipated.
The incremental encoder input, which supports RS422 as well as
TTL encoders, is provided for position feedback.
With both enable inputs, the safety function STO is implemented.
The 2 latch/digital inputs are provided for the reference motion and monitoring the end
positions.

ST 151 S-DIAS STEPPER MOTOR OUTPUT STAGE
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Contents
1Basic Safety Guidelines......................................................... 5
1.1 General Information on Safety ....................................................5
1.2 Further Safety Guidelines............................................................6
1.3 General Requirements .................................................................7
2Safety Conformity..................................................................11
2.1 Functional Safety Standards.....................................................11
2.2 EU Conformity Declaration........................................................11
2.3 Safety-Relevant Parameters......................................................11
3Technical Data .......................................................................12
3.1 Stepper Motor Output Specifications.......................................12
3.2 Brake Chopper Specifications...................................................13
3.3 Incremental Encoder Input Specifications...............................13
3.4 STO Enable Input Specifications ..............................................14
3.5 Latch/Digital Input Specifications.............................................14
3.6 Electrical Requirements.............................................................15
3.7 Miscellaneous .............................................................................17
3.8 Environmental Conditions.........................................................17
4Mechanical Dimensions........................................................18
5Connector Layout..................................................................19
5.1 Status LEDs.................................................................................20
5.2 Applicable Connectors...............................................................21

S-DIAS STEPPER MOTOR OUTPUT STAGE ST 151
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5.3 Label Field ...................................................................................22
6Wiring.....................................................................................23
6.1 Wiring Example...........................................................................23
6.2 Note..............................................................................................24
7Description of Functions......................................................25
7.1 Stepper Motor Output Stage Operating Modes .......................25
7.1.1 Full Step Mode.................................................................................. 25
7.1.2 Half Step Mode................................................................................. 25
7.1.3 Micro Step Mode............................................................................... 26
7.2 Stepper Motor Current Regulator..............................................27
7.3 Incremental Encoder ..................................................................29
7.3.1 Signal Process “Count UP” ............................................................... 29
7.3.2 Signal Process “Count DOWN”......................................................... 29
7.3.3 Signal Process “Reference Pulse (Zero Position)”............................ 29
7.3.4 Latch Function .................................................................................. 30
8Additional Safety Information ..............................................31
8.1 STO...............................................................................................33
8.2 Function.......................................................................................33
8.3 Function Test ..............................................................................34
9Wiring Examples ...................................................................35
9.1 Performance Level e, Category 4 or SIL 3 –Safety-SPS ........35
9.2 Performance Level e, Category 3 or SIL 3 –Safety-SPS ........37
9.3 Performance Level e, Category 4 or SIL 3 –Conventional.....39

ST 151 S-DIAS STEPPER MOTOR OUTPUT STAGE
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9.4 Performance Level e, Category 2 or SIL 2 –Safety-SPS ........41
10 Mounting.................................................................................43
11 Disposal..................................................................................44

S-DIAS STEPPER MOTOR OUTPUT STAGE ST 151
02.12.2019 Page 5
1 Basic Safety Guidelines
1.1 General Information on Safety
If the safety guidelines are not followed, dangers to personnel can arise that could lead to
serious injury or in worst cases, death. In less serious cases, systems and equipment can
be damaged.
The following symbols identify the individual risks as well as the degree of seriousness;
their respective meanings are briefly explained. You should therefore familiarize yourself
with the safety symbols and their meanings to prevent dangers and risks.
DANGER!
DANGER!
Identifies an immediate danger with high risk, which
can lead to immediate death or serious injury if not
avoided.
Indique un danger direct à haut risque d’un décès
immédiat ou des blessures graves si les consignes de
sécurité ne sont pas respectées.
WARNING
WARNING
Identifies a possible danger with a mid-level risk,
which can lead to death or (serious) injury if not
avoided.
Indique un danger possible d’un risque moyen de
décès ou de (graves) blessures si les consignes de
sécurité ne sont pas respectées.
CAUTION!
CAUTION!
Identifies a low risk danger, which can lead to injury or
property damage if not avoided.
Indique un danger avec un niveau de risque faible des
blessures légères ou des dommages matériels si les
consignes de sécurité ne sont pas respectées.

ST 151 S-DIAS STEPPER MOTOR OUTPUT STAGE
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1.2 Further Safety Guidelines
Warning, dangerous electrical voltage
Avertissement d’une tension électrique dangereuse
Hot surface warning
Avertissement d’une surface chaude
Danger for ESD-sensitive components
Les signes de danger pour les composants sensibles
aux décharges électrostatiques
This symbol identifies important or additional infor-
mation regarding the operation of the safety modules.
Ce symbole indique des informations importantes ou
supplémentaires concernant le fonctionnement des
modules de sécurité particuliers.

S-DIAS STEPPER MOTOR OUTPUT STAGE ST 151
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1.3 General Requirements
Technical
Documentation
This technical documentation is a component of this product.
•this document must be accessible in the vicinity of the
machine, since it contains important instructions.
•the technical documentation should be included in the
sale, rental or transfer of the product.
Documentation
technique
Cette documentation technique fait partie intégrale du produit.
•Gardez la toujours à portée de main et à la proximité
de la machine, car elle contient des informations im-
portantes.
•Distribuez la documentation technique aux secteurs de
la vente et/ou de la location du produit.
Acceptance of the Safe-
ty Guidelines
Before handling the product belonging to this documentation,
the operating instructions and safety guidelines must be read.
SIGMATEK GmbH & Co KG accepts no liability for damages
resulting from non-compliance with the safety guidelines or the
relevant regulations.
Acceptance or the safety guidelines and the explanations in this
document, as well as the Safety System Handbook (see
homepage1) are a basic requirement for proper use. Therefore,
read this operating manual thoroughly and familiarize yourself
with each of them.
More information on standards and regulations etc. can be
found in the system handbook.
1
Using the search function with the keyword “Safety System Handbook”

ST 151 S-DIAS STEPPER MOTOR OUTPUT STAGE
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Prendre connaissance
de consignes de sécu-
rité
Avant toute manipulation on doit impérativement prendre con-
naissance de consignes de sécurité et du mode d’emploi.
SIGMATEK GmbH & Co KG n'assume aucune responsabilité
pour les dommages causés par le non-respect des consignes
de sécurité ou du mode d’emploi respectif.
La connaissance de consignes de sécurité et le contenu de
cette documentation ainsi que le mode d’emploi du système de
sécurité constitue une condition préalable à l'utilisation prévue.
Lisez ce mode d’emploi et assurez-vous de le comprendre
jusqu’aux détails.
Pour plus d'informations sur les normes et les lignes directrices,
etc., reportez-vous au mode d’emploi.
Qualified Personnel
Installation, assembly, programming and initial start-up, opera-
tion, maintenance and decommissioning of control and automa-
tion technology products in general, as well as safety-related
products especially, can only be performed by qualified person-
nel.
Qualified personnel in this context are people, who have com-
pleted training or have trained under supervision of qualified
personnel and have been authorized to operate and maintain
safety-related equipment, systems and facilities in compliance
with the strict guidelines and standards of safety technology.
Personnel qualifié
Installation, montage, programmation, mise en service, l'exploi-
tation, l'entretien et mise hors service de produits de commande
et d'automatisation en général, et de produits liés à la sécurité,
en particulier, ne peut être effectuée que par le personnel quali-
fié.
On entend sous terme personnel qualifié les personnes ayant
acquis une formation professionnelle dispensé par un spécial-
iste sur l’utilisation et surveillance des composants et des sys-
tèmes de sécurité, ceci conformément aux lignes directrices et
les normes en vigueur.