Ground connection
For this purpose, the stator is equipped with threaded bores for grounding
connection at both face ends. Fasten the ground cable with a ring terminal at
one of these threaded holes.
For details on the exact position and the connection thread of the threaded
hole, refer to the dimensional drawing of the respective motor. The minimum
cross-section depends on the type of motor. The corresponding data are lis‐
ted in
The power wire cross-section specified in the data sheet of the
motor is also applies for the grounding cable and must be com‐
plied with.
6.3.2
Temperature sensors
Standard stator
As standard, two thermistors (NTC) for motor protection are mounted into the
motor winding of 1MS stators. One sensor must be connected, the other
serves as a replacement. If the connected sensor fails, the replacement sen‐
sor can continue to be used.
①
NTC
Fig. 6-3:
Wire designation 1MS temperature sensor in standard design
●
The polarity within the wire pair is not relevant for the func‐
tion of the hot wire.
●
The function of the replacement sensor cannot be guaran‐
teed and must therefore be ensured before commissioning.
Stators in special design S010
In the case of 1MS stators in the "S010" design, three temperature sensors
are permanently installed in the motor winding. Each of these sensors is dou‐
bly present. If the connected sensor fails, the replacement sensor can contin‐
ue to be used.
①
KTY84-130
②
NTC
③
Bimetal
Fig. 6-4:
Wire designation 1MS temperature sensors in special design S010
30/53
Assembly
1MB Asynchronous Spindle Motors
Bosch Rexroth AG R911337309_Edition 03
Содержание Rexroth 1MB
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