Bosch Rexroth MSK030B-0900-NN Project Planning Manual page 257

DOK-MOTOR*-MSK********-PR12-EN-P
Synchronous Servomotors MSK
Power cable connection on termi‐
nal box
The power connection is made in single or double wiring. The ready-made
power cables are inserted into the terminal box via the adapter plates and ca‐
ble glands with optional reductions/extensions.
Connecting the power cable to the terminal box requires the following steps:
1. Open the terminal box cover.
Loosen and remove the mounting screws (4 pieces).
2. Turn terminal box if necessary.
Loosen the mounting screws ⑩ and turn the terminal box by 90 or 180
degrees. Screw in and tighten the mounting screws ⑩ . Tightening tor‐
que of the screws ⑩: 6.5 Nm (± 10%)
Ensure that the seal between the terminal box and motor housing is in
proper condition and in the correct position.
3. Remove the protective cover of the cable gland.
4. Detach the adapter plate ③ from the terminal box.
5. Screw the adapter plate firmly to the metric cable gland on the power
cable. Use reduction for power core cross-sections of 1.5 mm² and
2.5 mm².
Before attaching the power cable to the adapter plate, check the correct
condition and position of the O-ring.
6. Feed the power cable up to the adapter plate through the opening in the
terminal box and fasten the adapter plate to the terminal box.
Tightening torque of the screws ⑥: 9 Nm (±10%)
Before attaching the adapter plate ⑥ to the terminal box, check the O-
ring ⑤ inserted in the adapter plate for proper condition and correct po‐
sition.
7. Connect the cores according to the connection diagram for standard or
double cabling.
Observe the following tightening torques:
Designation Type
Clamping power
WEF
U1, V1, W1
Clamping 1 ... 6
temperature sen‐
WEF
sor / holding brake
(option)
Ring terminal end
RTE
for PE and screen
WEF = wire end ferrules
RTE = ring terminal end
Tab. 12-4: Screw tightening torques in Nm in terminal box
8. Close and fasten the terminal box cover.
Apply Loctite 243 (liquid screwlock) to the thread of the mounting
screws for the lid ① and then attach the lid with all of the mounting
screws.
Tightening torque of the screws: 6.5 Nm (±10%)
Before attaching the terminal box cover to the terminal box, check for
proper condition and the correct position of the glued seal ② on the ter‐
minal box cover.
Bosch Rexroth AG
Connection Size / type
mm²
1.5 ... 16 (RLK1200)
M6
1.5 ... 35 (RLK1300)
0.2 ... 2.5 Spring-cage terminal
M8
255/279
Installation
Tightening torque
Nm
2.5
-
3.8