27
ENGLISH
Before making the connection check
the data shown on the nameplate against that on
the connection diagram.
All electrical connections are to be made by qualified
personnel.
Motors from 63 to 160
When making a connection use the diagram supplied
with the motor and bear in mind that the brake may
be provided for various types of power supply:
•
Alternating three-phase power (the voltage may
differ from that for the motor). If the voltage of the
brake is higher than 420 V, the power supply ter-
minal of the brake is positioned in a separate box.
•
DC power.
In the latter case, with direct current electro-mag-
nets, the brake may be powered:
- Directly via a direct current line.
- By a single-phase alternating current line via a rec-
tifier in the terminal box (version possible only with
Ex-d protection).
Motors from 180 to 315
The braking unit has its own terminal box containing
brake terminals and any accessories. Motors with
Ex-d type protection have the DC/AC rectifier inside
the terminal box, while motors with Ex-de type pro-
tection have the rectifier located inside the brake
enclosure.
When making a connection use the diagram supplied
with the motor and bear in mind that the brake may
be provided for various types of power supply:
- Directly via a direct current line.
-
by a single-phase alternating current line via a rec-
tifier in the terminal box or in the brake cover
enclosure.
Upon request auxiliary devices can also be fitted on
the brake, such as thermal protection devices and
anti-condensation heaters.
These auxiliary devices have specific power supply
terminals in the terminal box that must be connected
as per the diagram supplied with the motor.
Adequate precautions must be taken to
avoid excess voltages or peak voltages. The
cables must not be crushed or exposed to
mechanical loading.
When the motor is fitted with a manual brake release
lever it must be installed so as to avoid any acciden-
tal activation of the release unit and ensures that it is
easy to release when necessary.
The release spanner must not be left on the hand
lever when the motor is running.
3.4 Manual release (optional on
request)
3.3 Connection for auxiliary devices
3.2 Electrical connections
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