4
Mechanical installation
Adapter with AR slip clutch
Assembly and Operating Instructions – Explosion-Proof Gear Units
82
4.16
Adapter with AR slip clutch
8
1 2 3
4
5 6
7
Ex
Ex
18014398528008587
[1]
Trip cam
[4]
Friction lining
[7]
Friction hub
[2]
Voltage encoder
[5]
Cup spring
[8]
Speed monitor
[3]
Driving disk
[6]
Slotted nut
Drives with a slip clutch consist of a standard gear unit and a motor/variable-speed
gearmotor with an adapter installed between them. This adapter accommodates the
slip clutch. In gearmotors with a compound gear unit, the slip clutch may be located
between the first and second gear unit.
Via the friction lining [4] of the driving disk [3], the input friction hub [7] with cup springs
[5] and slotted nut [6] drives the output coupling plate with connecting pin. The slip
torque is set individually according to the drive selection.
The speed of the coupling plate at the output end is picked up by a voltage encoder [2]
and passed on to a monitoring unit [8]. Speed monitors and slip monitors are used as
monitoring units. You can install them together with contactors, safety devices, etc. on
a 35 mm standard rail (according to DIN EN 50 022) in a control cabinet or mounted
via 2 bores.
4.16.1
WEX speed monitor
INFORMATION
The speed monitor and remote speed indication must be located outside the poten-
tially explosive area.
The speed monitor [8] is used for gearmotors with constant speed. The speed monitor
is connected to the voltage encoder [2] in the adapter.
4.16.2
Mount voltage encoder
Proceed as follows:
1. Remove the fan guard from the driving motor.
24804134/EN – 05/2018
