Interroll DL Series - Electrical Connection of the Drum Motor; Connecting the Drum Motor - with a Cable; Connecting the Drum Motor - with a Terminal Box; Single-Phase Motor

Version 1.2 (08/2022) en
Translation of original operating instructions 39 of 64
Assembly and installation
NOTICE
Damage of the drum motor due to incorrect power supply!
¾ Do not connect an AC drum motor to an excessively high DC voltage supply and a DC drum motor to an
AC voltage supply – this will lead to irreparable damages.
8.8 Electrical connection of the drum motor
8.8.1 Connecting the drum motor – with a cable
1. Ensure that the motor is connected to the correct supply voltage according to the motor type plate.
2. Ensure that the drum motor is correctly grounded with the yellow-green cable.
3. Connect the drum motor according to the connection diagrams.
8.8.2 Connecting the drum motor – with a terminal box
NOTICE
Damage to the internal wiring due to changes to the terminal box!
¾ Do not disassemble, reassemble or modify the terminal box.
1. Remove the cover of the terminal box.
2. Ensure that the motor is connected to the correct supply voltage according to the motor type plate.
3. Ensure that the terminal box of the drum motor is correctly grounded.
4. Connect the drum motor according to the connection diagrams.
5. Replace cover and seals. Tighten the screws of the cover with 1.5 Nm to ensure that the terminal box is tightly
sealed.
8.8.3 Single-phase motor
If a starting torque of 100 % is required, single-phase drum motors,should be connected to a starting capacitor and
a run capacitor. An operation without starting capacitor can reduce the starting torque to 70 % of the rated torque
listed in the Interroll catalog.
Connect the starting capacitors according to the connection diagrams.
8.8.4 External motor protection
The motor must always be installed together with suitable external motor protection, e.g., a motor circuit breaker
or frequency inverter with protection against excessive current. The protective device must be adjusted to the rated
current of the corresponding motor (see type plate).
Interroll synchronous motors may be operated only with frequency inverters that feature a control suitable for
permanent magnet synchronous motors (PMSM).
The rated current must not be exceeded during continuous operation.
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