
5
Electrical installation
Connecting the brake
Operating Instructions – EDR..71 – 315, EDRN63 – 315
79
5.16
Connecting the brake
The BE.. brakes are powered by energized DC voltage and are released electrically.
The brake is applied mechanically when the voltage supply is disconnected.
WARNING
Delayed brake application or unintentional brake release due to incorrect control or
connection.
Severe or fatal injuries, e.g. due to falling hoist.
•
Comply with the applicable regulations issued by the relevant employer's liability
insurance association regarding phase failure protection and the associated cir-
cuit/circuit modification.
•
Connect the brake according to the enclosed wiring diagram.
•
In case of emergency off, always disconnect all poles of the brake control from
the supply voltage.
•
Only use suitable contactors with sufficient contact rating (utilization category ac-
cording to EN 60947‑4‑1/EN 60947‑5‑1, see the chapter
"
•
For contactor selection, observe the inductive load to switch, and the high current
load while switching the brake.
5.16.1
Connecting the brake control
The brake is powered by a brake control system with protection circuit. For category
3D, the brake control can either be installed in the motor's terminal box or in the con-
trol cabinet. For category 3G, 3GD, the control must be located in the control cabinet.
If the motor is prepared for the brake control in the control cabinet, the brake supply
cables are connected to a terminal strip in the motor terminal box.
Usually screw terminals are used as terminals on the brake control. The terminal strip
is designed with cage clamps.
The connectable cable cross sections are restricted to 2.5 mm
2
. If you use larger cable
cross sections due to application reasons, additional intermediate terminals must be
used.
The brake is internally connected to the motor PE. An additional connection for the
brake is not necessary.
WARNING
Delayed brake application or unintentional brake release due to incorrect control or
connection.
Severe or fatal injuries, e.g. due to falling hoist.
•
Observe the specifications of this documentation for connecting the brake.
•
If you are uncertain about brake control, voltage supply type and design, or over-
voltage and short circuit protection, contact the plant manufacturer or
SEW‑EURODRIVE.
25896334/EN – 06/2019
Содержание EDR200
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