EMG ELDRO EdEx 125/160, Инструкция по сборке

Страница: 51 / 75

Assembly and installation 6
Electrical connection 6.2
ELDRO-EdEx-Montageanleitung-607338-EN.docx 51 / 75
6.2.2 Earthing conductor connection
NOTICE
The connection of the external protective conductor must take the
swivel movement of the EdEx thruster and the surface temperature
into account!
 Always connect the earthing conductor before all other cables
There is one earthing conductor connection in the junction box
(
⇒
Junction box and terminal diagram section) and one in the
immediate vicinity of the junction box on the outside of the EdEx
thruster. The earthing conductor must be installed on the EdEx
thruster in accordance with the applicable standards. The purpose of
the earthing connector is to reduce the contact voltage in the event of
coil or insulation damage to a safe amount and to switch the system
off in conjunction with monitoring equipment. This can only be
achieved by measuring the earthing conductor sufficiently, installing it
properly and ensuring that it is intact.
6.2.3 Power supply connection
NOTICE
Before connecting, check whether the mains voltage and the mains
frequency correspond to the specifications on the type plate.
Always keep the junction box clean.
Check that the sealing elements on the junction box are intact and
tight.
Always lock the junction box cover after connecting.
Due to hydraulic laws, the motor’s power consumption reduces
when the piston has reached the limit position. This prevents
overloading. A thermal protective switch is therefore not
required. If a motor protection switch is used to safeguard the
EdEx thrusters despite this, we recommend adjusting the
thermal overcurrent trigger to 1.5 times the thruster current
according to the type plate.
Electrical power may only be supplied once the earthing conductor is
connected and can be provided as a fixed cable if the thruster is
arranged stationary.