Festo EMMS-ST-57-S-G2 Serie Notice D'utilisation page 3

Stepper motor
EMMS-ST-57-S-...-G2
Operating instructions
Original: de
Stepper motor EMMS-ST-57-S-...-G2
Note
Fitting and commissioning to be carried out only by qualified personnel in ac-
cordance with the operating instructions.
If used in safety relevant applications, additional measures are necessary, e.g. in
Europe the standards listed under the EU machine guidelines must be observed.
Without additional measures in accordance with legally specified minimum re-
quirements, the product is not suitable as a safety relevant conponent in control
systems.
Check whether the EMMS-ST-...-G2 complies with what you have ordered.
Depending on the order, these motors contain a spring loaded holding brake
EMMS-ST-...-SB/-SEB as well as an encoder EMMS-ST-...-SE/-SEB.
Electrostatic discharges onto the motor of more than 3.2 kV can sporadically
result in malfunctions of the motor.
Control sections and connections
1
Encoder plug connection (with
EMMS-ST-...-SE/-SEB)
2
Motor / holding brake plug con-
nection (holding brake with EMMS-
ST-...-SB/-SEB)
Fig. 1
1 Function and application
Stepper motor EMMS-ST-...-G2 in 2-phase hybrid technology is operated on a con-
troller with power electronics. The controller specifies the direction of rotation and
the stepping angle in the form of a sinus current pulse. The motor must always be
operated within its characteristic curves, as overloding and excessive acceleration
values can cause steps to be lost which are not then registered by the controller.
The EMMS-ST-...-SE/-SEB is equipped with an encoder which monitors the loss of
steps or which in conjunction with controller CMMS-ST enables the 'servo-light'
mode (closed loop).
The EMMS-ST-...-SB/-SEB possesses an integrated holding brake.
Festo AG & Co. KG
Postfach
D-73726 Esslingen
++49/711/347-0
www.festo.com
754547
1010NH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
3
4
5
3
Through-holes for fastening
4
Shaft
5
Motor flange
Stepper motor EMMS-ST-...-G2 has been designed for driving positioning systems.
The holding brake with EMMS-ST-...-SB/-SEB is not suitable for braking the motor.
The device is intended for use in an industrial environment. In residential areas,
measures for radio interference suppression may have to be taken.
2 Transport and storage
• Ensure storage conditions as follows:
– Storage times should be kept to a minimum
– cool, dry, shaded storage locations protected from corrosion (
specifications).
3 Conditions of use
Note
Incorrect handling can result in malfunctioning.
• Ensure that the specifications in this chapter are always observed.
• Compare the maximum values in these operating instructions with your actual
application (e.g. forces, torques, masses, speeds, temperatures). The use of
force to move the rotor shaft will, under circumstances, reduce the functioning
of an integrated holding brake.
• Please observe the regulations applicable to the place of use and comply with
national and local regulations.
• Use the EMMS-ST in its original state. Unauthorized product modification is not
English
permitted.
• Take into account the prevailing ambient conditions at the location (
specifications).
4 Fitting
Warning
Open cable ends on the rotating motor can under circumstances lead to danger-
ous high voltages.
1. First leave the motor uncoupled from the axis.
2. Make sure that the controller is switched off.
Cancelling the Controller Release signal is not sufficient.
3. Connect the EMMS-ST completely to the controller as shown in the following
tables. The ready to use cables from Festo (
large cable cross sections as well as screening of the motor/encoder cable with
earth contact on both sides.
Motor connection/holding brake (front view)
2 Sub-D plug, 9-pin
1) Only on motors with holding brake EMMS-ST-...-SB/-SEB
Fig. 2
Encoder connection (front view)
1 M12 plug, 8-pin
Fig. 3
Note
Narrow mounting situations can cause an accumulation of heat.
• Make sure that the motor has sufficient space for heat dissipation.
Accessories) offer sufficiently
PIN Assignment
1 String A
2 String A /
3 String B
4 String B /
5 n. c.
6 n. c.
1)
7 Holding brake (+ 24 V DC)
1)
8 Holding brake/GND
9 n. c.
: Screening on the housing
PIN Assignment
1 Signal track A
2 Signal track A /
3 Signal track B
4 Signal track B /
5 GND sensor
6 Signal track N
7 Signal track N /
8 VCC help supply 5 V
Technical
Technical