
M23 plug, 15-pin Pin Identifier Function
Servo motor EMMT-AS-...
A U Motor phase U
B V Motor phase V
C W Motor phase W
D – Not available
PE PE Protective earthing
Holding brake EMMT-AS-...-...B
1 BR– Holding brake, reference
potential 0V
2 – Not available
3 – Not available
4 BR+ Holding brake, 24VDC
Absolute encoder EnDat 2.2, single-turn/multi-turn EMMT-
AS-...-...S/M
5 USSupply voltage
6 GND Weight
7 DATA+ Positive data signal (RS485)
8 DATA– Negative data signal (RS485)
9 CLOCK+ Positive clock signal
10 CLOCK– Negative clock signal
Tab. 3 Plug for Motor/Absolute Encoder EnDat2.2/Holding Brake
9 Commissioning
WARNING!
Risk of injury due to unexpected movement of components.
• When releasing the holding brake, secure the driven mechanical system to
prevent unintended movement.
• Deenergise the motor before releasing the holding brake manually.
• Before setting the enable signal, protect the traversing range of the driven
mechanical system from access.
– Commission the motor together with the servo drive èDocumentation for
servo drive.
10 Operation
WARNING!
Danger of burns from hot housing surfaces.
Metallic housing parts can reach high temperatures during operation.
Contact with metal housing parts can cause burn injuries.
• Do not touch metallic housing parts.
• After the power supply is switched off, let the device cool down to room tem-
perature.
11 Maintenance
11.1 Replacement
For variants with rotary shaft seal:
• Replace the rotary shaft seal depending on operating conditions, however no
later than after 5,000 operating hours
11.2 Cleaning
Before cleaning, the product must be cooled down to below 40°C.
Clean the outside of the product with a soft cloth as required. Cleaning agents
include all non-abrasive media.
11.3 Disassembly
WARNING!
Risk of injury due to electric shock.
• Switch off power supply prior to assembly and installation work; ensure that
it is off and secure it against being switched back on.
Cancelling the enable signal is not sufficient.
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. for vertical installation, move the slide into the lower end position).
• Only then should you disconnect the motor from the mechanical system.
11.4 Fault clearance
Fault description Cause Remedy
Excessive load Reduce load.
Servo drive has not yet been
enabled.
Check signals.
Motor shaft does not turn.
Holding brake is active. Release holding brake.
Fault description Cause Remedy
Cabling error Check and correct cabling.Motor turns in the wrong direc-
tion or vibrates. Controller parameter is incor-
rect.
Check and correct controller
parameter.
Tab. 4
11.5 Repair
Send the product to the Festo repair service for repair.
12 Disposal
Dispose of the product and packaging at the end of its useful life through environ-
mentally friendly recycling in accordance with applicable regulations.
13 Technical Data
Technical data for the product:
1. Internet èwww.festo.com/pk.
2. Product labelling 2 with the following values:
Designation1) Description
M0[Nm] Stall torque
MN[Nm] Nominal torque
I0[A] Continuous stall current
INph [A] Nominal current
nN[rpm] Nominal rotary speed
nmax [rpm] Maximum rotational speed
UZK [V] Nominal operating voltage DC
UB[V] Operating voltage DC, holding brake
ke [mVmin] Voltage constant
IPxx2) Degree of protection
Class 155 (F) Temperature class F (155°C)
CE marking (see declaration of
conformity
èwww.festo.com/sp)3)4)
To EU EMC Directive
To EU Low Voltage Directive
To EU RoHS Directive
1) All data as per IEC60034
2) For vertical use under the influence of dropping water, a rotary shaft seal must be provided on the motor.
3) The product is intended for use in an industrial environment. Measures for interference suppression may
be required in residential areas. The product can generate frequency malfunctions, which may make it
necessary to implement interference suppression measures in residential areas.
4) For cable lengths of > 30m, additional measures are required to ensure compliance with the EMC
guidelines. Compliance with the EMC Directive is the responsibility of the user.
Tab. 5 Designations on the Product Labelling