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NOTE:
The supply unit in the order variant SO CM-P.xxxx.0xxx.x is delivered without a
switched-mode power supply. For more details see section 6.3
4.9
Layout, top X1 and X2
X1
X2
X1 = brake chopper connection X2 = 24 V DC output (terminal)
Figure 4.10
Layout, top BG1 top
ID no.: 1400.201B.5-00
Electrical installation
1
Electrical installation
X1
X2
Figure 4.11
Layout, top BG2 top
Date: 02/2020
4.10 Brake chopper connection
In regenerative operation, e.g. when braking the drive, the motor feeds energy back
to the axis controller. This increases the voltage in the DC link. If the voltage exceeds
a threshold value, the internal braking transistor in the supply unit is activated and the
regenerated power is converted into heat by means of a braking resistor.
The ServoOne CM-P supply unit in principle requires a braking resistor. You can choose
between an ext. braking resistor or the variant "Supply unit with integrated braking
resistor", see order code.
4.10.1 Connector X1 specification
Term.
Specification X1 BG1 + BG2
BR
x Connection for braking resistor
x Max. connection cross-section for the
terminal 6 mm
2
x For tech. data, see Table A.2 and A.4.
x Connection cable must be shielded
x Connection for temperature monitoring
ϑ
(Klixon) braking resistor
1)
x Shield lug on the connector
for cable
2)
shield (see photograph)
PE
x Connect PE connection on the braking
resistor to the PE stud on the "top" of the
device.
For layout see Figure 4.10 and Figure 4.11
1) If temperature monitoring is not connected, a jumper must be connected to the connections X1-ϑ!
2) Connector set not included in the scope of supply: BG1: Order no. 1451.600.0 BG2: Order no. 1452.600.0
Table 4.9
Connection, braking resistor with temperature monitoring on X1 BG1+2
Operation Manual Supply Unit SO CM-P BG1+2
ϑ
ϑ
BR
X1
BR
See Figure 4.12
31
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