Keba KeDrive D3-DA BG3 - Motor Holding Brake Monitoring Output; Specification for Motor Connections

Holding brake (+)
Holding brake (-)
24 V DC
ext.
24 V DC
+
Motor
3
~
WVU
PE
Figure B: Recommended connection of the motor holding brake from max. 2 A motor brake current
Figure 4.16 Connection of one servomotor with motor holding brake, KeDrive D3-DA BG4
CAUTION! Damage to the device due to incorrect insulation of the motor winding!
Carelessness can cause damage to the motor/device
The motor temperature sensor must, in relation to the motor winding, on connection to U/V/W
be provided with basic insulation as per EN61800-5-1.
4.8.2 Motor holding brake monitoring output
The output for the motor holding brake "BRAKE" (see Figure 4.12 and Figure 4.16) is
continuously monitored independently of the usage of SBC.
The monitoring uses shutdown pulses that are sent with a maximum time window of
7.5ms (depending on the load) and a minimum time window of 1.5 ms.
NOTE:
Due to this brief shutdown, the "Time window exceeded" error may be
triggered with high-impedance loads.
4.8.3 Specication for motor connections
The motor phases are connected to the connector X31A-U/V/W on single-axis
controllers BG3 and to the connectors X31A-U/V/W and X31B-U/V/W on double-
axis controllers BG3. The terminals for the motor phases are xed on the single-axis
controller BG4. The motor temperature sensor is connected to terminal "TEMP" and the
motor holding brake to terminal "BRAKE" (see Figure 4.17).
Connection Function Cross-section Tightening torque
TEMP Connection for motor
temperature sensor
0.14 - 1.5 mm
2
(AWG 24-16) 0.22 - 0.25 Nm max.
BRAKE Connection for motor
holding brake
U
N
: = 24 V ± 20%
I
max
: = 2 A
0.14 - 1.5 mm
2
(AWG 24-16) 0.22 - 0.25 Nm max.
U / V / W Connection for motor phases Design of cross-section depending on the motor power and cable
length:
BG3 single-axis controller:
Terminal up to max. 35 mm
2
Conductor : ≤ 25 mm
2
= 2.5 Nm
> 25 mm
2
= 4.5 Nm
Shield plate: 0.8 Nm
BG3 double-axis controller:
Terminal up to max. 16 mm
2
Conductor : 1.7 - 1.8 Nm
Shield plate: 0.3 - 0.7 Nm
BG4 130 A - 250 A:
Stud (M10) up to max. 70/150 mm
2
min. 10 Nm
max. 20 Nm
BG4 300 A:
Stud (M10) up to max. 240 mm
2
Connection for motor PE M6 or M10 screw with serrated
washer for ring lug
M6 max. 4.8 Nm
M10 max. 22 Nm
Table 4.18 Specication for motor connections
45
1 Electrical installation
Operation Manual KeDrive D3-DA BG3 and BG4
1804.200B.1-01 Date: 03/2023
Electrical installation