Coupled motors
10.4 Connection examples for parallel operation
1FW6 Built-in torque motors
Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9
543
Thermal overload as a result of poor phase angle adjustment
In parallel operation at rated load, a poorly adjusted phase angle results in a thermal
overload of the motors involved. In this case, the motor does not achieve its rated torque
M
N
in continuous operation.
• Adjust the phase angle as specified.
If you have any questions in this regard, then contact your local Siemens office. For
example, you can obtain information about optimally engineering or dimensioning drive
systems with torque motors operating in parallel.
Connection examples for parallel operation
Hazardous touch voltages can be present at unused cores and shields if they have not
been grounded or insulated.
• Refer to the Chapter "Shielding, grounding and equipotential bonding"
The following connection diagrams show, as example, the power and signal connection of
two torque motors electrically connected in parallel in a tandem arrangement.
If a PTC 150 °C does not exist, then diagrams "Connecting the PTC 130 °C via SME12x"
and "Connecting the PTC 130 °C via TM120" apply.
Table 10- 2 Power connection when operating two torque motors in a tandem arrangement in parallel
Stoker
Tandem arrangement
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