The explosion protection for the cable entries can only be guaran‐
teed, when they are in their original condition. The explosion pro‐
tection can no longer be guaranteed, if:
●
the isolator is damaged, broken or flaking.
●
the winding of the screw-grommet is damaged.
●
the cleavage face of the assembling bolt was changed, pro‐
cessed od damaged.
The servicing and repair of MKE motors must only be carried out
by certified Rexroth service employees.
Grommets must be used at mounting, which are adjusted with the cable outer
diameter in which the threads must be applied.
Screwing
Available grommets with nominal diameter Tolerance
-0.5 mm
LE20/9
(Encoder)
8,5
9,0
9,5
LE26/15
(Power 2.5 mm²)
13,5
14,0
14,5
15,0
15,5
16,0
16,5
LE26/19
(Power 6.0 mm²)
17,5
18,0
18,5
19,0
19,5
Fig.11-5:
Grommets for Ex cable fittings
DANGER
Danger of explosion, danger to life, heavy injury and material damage
⇒ Only cable fittings mounted according to the rules prevent the penetration of
potentially explosive gases / dusts.
⇒ Make sure that only grommets are used, which are adjusted to the cable
diameter.
The following steps are necessary:
1. Determine the outer diameter of the cable on the clamping of the cable
fitting.
Fig.11-6:
Determine the cable's diameter
2. Select the necessary grommet and mount it on the cable fitting.
3. Tighten the cable fitting as far as it will go.
The cable fittings are mounted according to the Ex regulations.
Mount and connect ready-made ca‐
bles
Ready-made cables are mounted according to
.
Project Planning Manual | Rexroth MKE Synchronous Motors
Electric Drives
and Controls
| Bosch Rexroth AG 105/131
Installation
