Festo EMMS-ST-87-L-G2 Serie Manual De Instrucciones página 4

Note
Narrow mounting situations can cause an accumulation of heat.
• Make sure that the motor has sufficient space for heat dissipation.
1. Clean the shaft of the motor 4.
The coupling will only grip without slipping on a shaft pin which is dry and free of
grease.
If fat solvent media enters the bearing, it will wash out the service life lubrica-
tion of the bearing.
2. Place the EMMS-ST on the motor flange 5.
3. Connect the motor to the mechanical components at the through-holes 3.
Ready to use motor kits for linear drives can be found in the Festo accessories.
4. Tighten the fastening screws (
5 Commissioning
Note
The motor can unexpectedly be started if the holding brake is released.
• Make sure that the motor windings are not energized before the holding brake
is released.
• Apply current first to the holding brake. The motor will then rotate freely. De-
pending on the type of device, the controller will unlock the holding brake
automatically.
• Complete the commissioning of the motor in conjunction with the controller in
accordance with the controller manual.
6 Operation
Warning
Hot parts of the housing can cause burning.
• Make sure that people and objects cannot come into direct contact with the
motor.
7 Care and maintenance
Warning
Burnt dust can under circumstances catch fire.
• Clean the motor housing of dust regularly.
8 Dismantling and repairs
Warning
Masses which suddenly slide down may cause injury to people in the vicinity of
the EMMS-ST.
• Make sure that the work load on the operating linear drive is in a safe position
(e. g. in the case of a vertical drive in the lower end position).
• You can now remove the EMMS-ST from the linear drive.
If repairs are required:
• return the motor to Festo.
Repairs by Festo will maintain the safety standards.
• Mount the EMMS-ST again as follows:
1. Push the slide or the cantilever of the linear axis into a safe position.
2. Fit the motor kits in accordance with the specifications in the assembly instruc-
tions.
9 Accessories
Note
• Please select the corresponding accessories from our catalogue
www.festo.com/catalogue
Instructions on drive and motor kits).
10 Eliminating faults
Fault Possible cause
Motor shaft does not turn Load too high
Controller not yet enabled
Holding brake active (only
with EMMS-ST-...-SB/-SEB)
Motor shaft rotates in the Cabling fault
wrong direction
Motor stops in wrong position Stepper fault
Fig. 4
11 Technical specifications
EMMS-ST-87-L-...-G2
Nominal motor voltage
Nominal motor current
Holding torque, motor
Stepper angle (full step)
Winding resistance
Winding inductance at 1 kHz
Moment of drive inertia
Voltage of the brake
Output of the brake
Holding torque of the brake
Brake response delay
Brake separation time
Pulse/rotation
Zero pulse
Line driver (RS422 protocol)
Operating voltage of encoder
Radial shaft load
5 mm distance from flange
20 mm distance from flange
Axial shaft load
Insulation protection class
(tested with DC 500 V/1 min.)
Protection class (when fitted)
Ambient temperature
CE mark (see declaration of con-
1)
formity)
Max. relative humidity
(nn condensing)
Max. cable length
Product weight
1) In residential areas, measures for radio interference suppression may have to be taken.
Fig. 5
UL certification information
Product category code
Certificate number
Standards taken into account
UL test symbol
Fig. 6
12 Characteristic curves
Rated voltage 48 V / Motor current 8 A
24 VDC
48 VDC
72 VDC
24 VDC ¼ Step
48 VDC ¼ Step
Fig. 7
Remedy
Reduce motor load
Check controller signals
Release holding brake
Check cabling
Repeat reference run
S SE SB
[V] 48
[A] 9.5
[Nm] 9.3
[°] 1.8 ± 5 %
[Ω] 0.23 ± 10 %
[mH] 2.7
2
[kgcm ] 3 3.07
[V] – 24
[W] – 11
[Nm] – 2
[ms] – 2
[ms] – 25
– 500 –
– Yes –
– Yes –
[V DC] – 5 –
[N] 535
[N] 200
[N] 65
B
IP54
[°C] –10 ... +50
In accordance with EU EMC directive
[%] 80
[m] 30
[kg] 4.2 4.35 4.6
PRHZ2 (USA) or PRHZ8 (Canada)
E342973
UL 1004-1/-6, C22.2 No.100-04
SEB
500
Yes
Yes
5
5