Festo EMMS-ST Operating Instructions

EMMS-ST
Stepper motor
Operating instructions
8146153
2020-11b
[8146155]
Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1 About this document
1.1 Applicable Documents
All available documents for the product è www.festo.com/sp.
1.2 Product version
This documentation describes the following product versions:
EMMS-ST-...-E/B-G2
E
B
G2
Tab. 1 Product version
2 Safety
2.1 Safety instructions
– Observe labelling on the product.
– Prior to assembly, installation and maintenance work: Switch off power sup-
ply, ensure that it is off and secure it against being switched back on.
– Store the product in a cool, dry, UV-protected and corrosion-protected envir-
onment. Ensure that storage times are kept to a minimum.
– Observe tightening torques. Unless otherwise specified, the tolerance
is ± 20 %.
– Electrostatic contact discharges to the motor of more than 3.2 kV can cause
sporadic motor malfunctions.
2.2 Intended use
The motor is intended to be used as a component in drive systems and may only
be operated in combination with a suitable servo drive.
2.3 Foreseeable misuse
The holding brake must not be used for braking the motor.
2.4 Training of qualified personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel.
The qualified personnel must be familiar with the assembly and installation of
electric drive systems.
2.5 Area of application and approval
In combination with the UL inspection mark on the product, the information in this
section must also be observed in order to comply with the certification conditions
of Underwriters Laboratories Inc. (UL) for USA and Canada.
UL certification information
Product category code PRHZ2 (USA) or PRHZ8 (Canada)
File number E342973
Considered standards UL 1004-1/-6, C22.2 No.100
UL mark
Tab. 2 UL/CSA certification information
3 Additional Information
– Accessories è www.festo.com/catalogue.
4 Service
Contact your regional Festo contact person if you have technical questions
è www.festo.com.
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
8146153
Product version
Encoder, single-turn
with holding brake
2nd generation (only for EMMS-ST-42/57/87)
5 Product overview
5.1 Function
The product is a stepper motor with 2-phase hybrid technology. The direction of
rotation and step angle are specified by the connected servo drive in the form of a
sinusoidal current injection. The encoder is used to detect the step angle position.
The de-energised holding brake enables the motor shaft to be held at a standstill.
Servo-light operation (closed loop control) is possible in conjunction with the
servo drive CMMT-ST or the motor controllers CMMS-ST or CMMO-ST.
5.2 Product design
Fig. 1 Product structure EMMS-ST-28 (example EMMS-ST-28 -... EB)
Fig. 2 Product structure EMMS-ST-42/57/87 (example EMMS-ST-57 -... EB)
6 Transport and storage
Transport and storage conditions
– Store and transport the product in its original packaging.
– Store and transport the product in a horizontal position.
– Store product in a cool and dry environment protected from sunlight and cor-
rosion.
– Store the product in ambient conditions without oils, greases and grease-dis-
solving vapours.
– Keep storage times short.
7 Assembly
7.1 Safety
WARNING!
Risk of injury due to unexpected movement of components.
• Bring moving parts of the connected mechanical system into a secure posi-
tion (e.g. move into the lower end position).
The max. permissible axial and radial forces on the motor shaft must not be
exceeded during transport, assembly or operation è www.festo.com/catalogue.
7.2 Unpacking product
1. Open packaging.
2. Remove all transport materials (e.g. foils, caps, cardboard boxes).
3. Remove the product from the packaging and place it on the mounting surface.
4. Dispose of packaging and transport materials è 13 Disposal.
7.3 Mounting motor
Requirement
– Select accessories è www.festo.com/catalogue.
1. Degrease and dry the motor shaft.
2. Mount motor on the driven mechanical system.
1 Electrical connection: encoder
2 Electrical connection: motor,
holding brake
3 Motor shaft
4 Motor flange
5 Threaded hole for mounting
6 Product labelling
7 Warning: hot surface
1 Motor shaft
2 Motor flange
3 Threaded hole (42) or through-
hole (57/87) for mounting
4 Electrical connection: motor,
holding brake
5 Electrical connection: encoder
6 Product labelling
7 Warning: hot surface