SEW-Eurodrive EDR200, Руководство по эксплуатации, Страница: 81 / 272

5
Electrical installation
Connecting the brake
Operating Instructions – EDR..71 – 315, EDRN63 – 315
81
WARNING
Delayed brake application or unintentional ongoing brake release due to incorrect
switch-off.
Severe or fatal injuries, e.g. due to falling hoist or extended coasting.
• During project planning, consider the required cut-off type and the effects on the
expected stopping distance in particular.
• Only use the faster cut-off in the DC and AC circuit for hoists and hoist-like ap-
plications.
• When you are not sure if the application is a hoist-like application, contact
SEW‑EURODRIVE.
• Make sure that the configured cut-off type (AC or AC-DC) is implemented cor-
rectly during startup, regardless of the type of application.
5.16.4 Brake voltage supply
The brake voltage supply must match the values specified on the nameplate of the
motor. The brake must be supplied via the designated brake control.
The specifications on the nameplate have a tolerance of +/-5% of the stated nominal
value, or of the mean value of the stated connection range. Observer order-specific
deviations.
Make sure the voltage supply is sufficiently stable by using cable cross sections and
voltage sources that are dimensioned accordingly. Make sure the supply voltage does
not drop below 90% of the nominal value during starting. This could be caused by an
increased inrush current, see the chapter "Operating currents" (→
2
186).
When using single-speed drives of category 3D with brake control in the terminal box
that are operated directly at the supply system (meaning without inverter or soft start
devices), the brake supply voltage can also be picked off from the terminal board of
the motor. Adhere to the following restrictions:
• The nominal brake voltage must either match the phase-to-neutral voltage, or the
phase-to-phase voltage of the motor (observe nameplate and motor switching
type).
• In case of hoists or hoist-like applications, the BSR.. brake control must be used
for cut-off in the DC and AC circuits.
• For combinations with BMP3.1 brake control (BE60 – 122) a voltage supply via the
terminal board is not permitted.
INFORMATION
In variable-speed motors and motors operated with soft start devices, the brake
voltage must not be picked up at the motor terminal board because the voltage there
is not constant.
25896334/EN – 06/2019