Installation; Ground Connection; Earthing Equipotential Connection; Connection Of The Safety Earthing - Stahl EC-94 Série Manuel D'instructions

7 Installation

Before carrying out any type of
intervention, read the "Safety rules"
chapter carefully in the product manual.
STAHL strongly recommend to test the device
configuration and performance before putting it in
the final installation site.

7.1 Ground connection

7.1.1 Earthing equipotential connection

The equipotential connection must be carried out
using an external cable with a minimum 4mm²
section (11AWG).
Connect the cable for the earthing equipotential
connection with the eyelet terminal supplied
(suitable for cables with 4mm²(11AWG) up to
6mm²(9AWG) section).
Fasten the eyelet using the M5 screw and lock washer
supplied.
Characteristics of the M5 screw:
• Material: A4 Class 70
• Screw head: ISO 4762
• Length: 8mm (0.3in)
Fig. 11

7.1.2 Connection of the safety earthing

The earth wire must be connected to the internal
connector (J1, 7.3 Connector board description, page
100).
MNTCMPXHDC_2038_EN
7.2 Opening of the connections
compartment
The safety grub screw is used to prevent
the unscrewing of the threaded cover from
the connection compartment. Remove the
security grub screw before unscrewing the
threaded cover.
The bottom of the unit has no.2 3/4" NPT cable
entries (or M25 special version).
To install the connections, remove the safety grub
screw (01) using a male 1.5mm hex key, the threaded
cover (02) (30mm hex nut) and the plastic plugs (03).
The plastic plugs are only used for shipping purposes
and should not be used during operation.
02
03
Fig. 12
By unscrewing the threaded lid, the connectors are
accessed.
01
03
17