Procedure
1. Interconnect all winding and temperature sensor connections. Check against the PE
connection or the motor enclosure with a maximum voltage of 1000 VDC for maximally 60 s.
2. Connect all temperature sensor connections to the PE connection and interconnect all
winding connections. Check the winding against the PE connection or the motor enclosure
with a maximum voltage of 1000VDC for maximally 60s.
❒
Each insulation resistance must be at least 10MΩ. A lower insulation resistance indicates
that the motor insulation is damaged.
WARNING
Risk of death due to electric shock!
During and immediately after the measurement, in some instances, the terminals are at
hazardous voltage levels, which can result in death if touched.
• Never touch the terminals during or immediately after measurement.
7.4 Cooling
WARNING
Risk of burning when touching hot surfaces
There is a risk of burning when touching hot surfaces immediately after the motor has been
operational.
• Wait until the motor has cooled down.
WARNING
Danger to life if the cooling system bursts
The motor will overheat if it is operated without cooling. When cooling water enters the hot
motor, this immediately and suddenly generates hot steam that escapes under high pressure.
This can cause the cooling water system to burst, resulting in death, severe injury and material
damage.
• Only commission the cooling water circuit when the motor is in a cool condition.
Commissioning
7.4Cooling
1FW6 built-in torque motors
Operating Instructions, 09/2022, A5E52220812B AA 117
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