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MS2E Synchronous Servomotors acc. to ATEX Directive
2014/34/EU
Protective circuit
Technical data holding brakes
Type
MS2E03-B____-____1-_____-__
MS2E03-D____-____1-_____-__
MS2E04-B____-____1-_____-__
MS2E04-C____-____1-_____-__
MS2E05-B____-____1-_____-__
MS2E05-C____-____1-_____-__
MS2E05-D____-____1-_____-__
MS2E06-C____-____1-_____-__
MS2E06-D____-____2-_____-__
MS2E06-E____-____2-_____-__
1) Tolerance ± 10%
The voltage supply of the holding brake has to be designed so as to guaran‐
tee under the worst installation and operation conditions that a sufficient volt‐
age 24 V ±10% is available at the motor in order to release the holding brake.
The voltage drop ΔU on the brake supply can approximately be calculated for
copper conductors using the following formula:
ΔU
Voltage drop [V]
ρ
Specific resistance of copper [Ω*mm
Cu
l
Cable length [m]
q
Wire cross section [mm
I
Rated current [A]
N
Fig. 4-3:
Voltage drop of brake supply for Cu (copper) conductor
CAUTION
For safe switching of the holding brake, a rated voltage of 24 V DC ±10% is
required at the motor.
Ensure correct dimensioning of the supply wires (wire length and cross-sec‐
tion) for the holding brake.
The control voltage can be reduced using the energy saving function after
safely releasing the brake, see
brakes" on page
18.
The holding brake in the motor is intended for direct connection to ctrlX and
IndraDrive controller.
The protective circuit to switch inductive loads of holding brakes is not inte‐
grated in MS2E motors. It is integrated in ctrlX and IndraDrive controllers of
Bosch Rexroth drive systems.
Holding tor‐
Dynamic
Rated volt‐
que
braking tor‐
age
que
M
M
U
4
1
N
Nm
Nm
V
1.80
1.3
24
1.80
1.3
24
5.00
4.5
24
5.00
4.5
24
10.00
4.5
24
10.00
4.5
24
10.00
4.5
24
10.00
4.5
24
15.00
11
24
15.00
11
24
2
2
]
Malfunction in case of exceeded tolerance of
the rated voltage (switching voltage)
chapter "Energy saving function for holding
Rated cur‐
Maximum
rent
connection
1)
time
I
t
N
1
A
ms
0.46
8
0.46
8
0.63
30
0.63
30
0.73
30
0.73
30
0.73
30
0.73
30
0.75
50
0.75
50
R911387136_Edition 02 Bosch Rexroth AG
17/65
About this product
/m]
Maximum
Maximum
disconnec‐
switched
tion time
energy
t
W
2
max
ms
J
35
300
35
300
45
400
45
400
80
400
80
400
80
400
80
400
130
888
130
888
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