Resistors - SEW-Eurodrive DR2..71/BE Series Operating Instructions Manual

8.4

Resistors

The depicted values apply to the standard temperature range of -20 to +40 °C. Deviat-
ing resistances may occur in other temperature ranges, especially in case of drives
with permitted temperature above +60 °C, or in case of non-ventilated drives, due to
modified winding configurations. The values are available from SEW‑EURODRIVE on
request.
8.4.1 Resistance measurement BE03, BE05, BE1, BE2, BE5, BE30, BE32, BE60, BE62
Cut-off in the AC circuit
The following illustration shows how to measure resistance with cut-off in the AC cir-
cuit.
Cut-off in the DC and AC circuits
The following illustration shows how to measure resistance with cut-off in the DC and
AC circuits.
BS
TS
R
B
R
T
U
N
INFORMATION
When measuring the resistance of the coil section (R
(R
Acc
the internal resistance of the brake rectifier will cause erroneous results.
RD
WH
9007199497350795
WH
18014398752093451
Accelerator coil
Coil section
Accelerator coil resistance at 20 °C in Ω
Coil section resistance at 20 °C in Ω
Nominal voltage (rated voltage range)
), remove the white conductor from the brake rectifier; if it remains connected,
RD
R
B
WH
R
T
BU
BU
RD
R
B
WH
R
T
BU
BU
RD
Operating Instructions – AC Motors
Technical data
Resistors
RD Red
WH White
BU Blue
) or the acceleration coil
Sec
8
199