1 Shield sleeve
Fig. 11 Shared shield support of all cable shields (example)
Option 2: The outside shield of the motor cable is connected separately over a
large surface area below the shield clamp on the front of the CMMTAS. The inside
shields are connected separately to the designated PE pin of the connection
[X6B].
•
Make unshielded cable ends as short as possible.
Mounting the shield clamp
The lower area on the front of the housing serves as a shield support surface. The
shield support surface, together with the shield clamp, allows the motor cable
shield to be connected over a large surface area.
1. Using the shield clamp, press the motor cable shield or the conducting shield
end sleeve of the motor cable onto the shield support surface of the
housing
è
Fig.12.
2. Using a size T20 TORX screwdriver, tighten the retaining screws (2x) of the
shield clamp. Pay attention to the clamping range and observe the tightening
torque specified below.
Property
Value
Comments
Clamping range
11 mm … 15 mm
Diameter of the stripped cable
or shield sleeve
Tightening torque for the retain
ing screws in the case of block
mounting
1.8 Nm ± 15 %
In the case of block mounting,
the shield clamp makes full
contact with the base of the
housing (cable diameter
11 mm)
Minimum tightening torque
with larger cable diameter
(
>
11 mm … 15 mm)
0.5 Nm ± 15 %
With a higher tightening torque,
make sure that the connecting
cable does not get crushed in
the clamping area due to
excessive pressure.
Tab. 35 Tightening torque and clamping range
1 Retaining screws of the shield clamp
2 Motor cable
3 Cutout for fastening cable binders (2x)
4 Shield clamp
5 Shield of the motor cable is placed over a large area below the shield clamp
Fig. 12 Shield clamp of the motor cable
Connection of the motor cable shield on the motor side
Detailed information on the motorside connection with motor cables from Festo
è
Assembly instructions for the motor cable used
è
www.festo.com/sp.
•
Connect all shields to the PE over a large surface area on the motor side
(e.g. via the shield connection provided on the motor connector or the shield
support surface in the motor junction box).
8.10
Power and logic voltage supply
8.10.1
[X9A], Power supply and intermediate circuit connection
Supply of the control section (logic voltage supply)
WARNING!
Risk of injury due to electric shock.
•
For the electrical power supply with extralow voltages, use only SELV circuits
that ensure a reliable separation from the mains network.
•
Observe IEC 602041/EN 602041.
•
Only connect PELV circuits with an output current of max. 25 A. Otherwise,
use a separate external fuse: 25 A.
Power supply and intermediate circuit connection
[X9A]
Pin
Function
Description
7
DC+
Intermediate circuit positive poten
tial
6
DC
Intermediate circuit negative poten
tial
5
L1
Mains supply phase L1
4
N
For 1phase mains connection:
mains supply neutral conductor
For 2phase mains connection:
mains supply phase L2
3
PE
Protective earthing
2
24 V
Positive potential of the 24 V logic
voltage
1
0 V
Reference potential of the 24 V logic
voltage
Tab. 36 Power supply and intermediate circuit connection
