Protection Concept; Connecting Movimot In Conjunction With A Fieldbus Interface - SEW-Eurodrive MOVIMOT MM D Series Operating Instructions Manual

Electrical installation
6

Protection concept

Gasket selection
6.3 Protection concept
6.3.1 Protection concept in conjunction with MLA12A
6.4 Connecting MOVIMOT
6.4.1 Installation planning considering EMC aspects
Arrangement of installation components
44
Operating Instructions – Explosion-Protected MOVIMOT
If the motor is operated in environments with high environmental impact, such as in-
creased ozone levels, EDR. motors can optionally be equipped with higher-quality
gaskets. If you have doubts regarding the stability of the gaskets in connection with
the respective environmental impacts, consult SEW-EURODRIVE.
INFORMATION
To avoid exceeding the permissible temperature, you may only operate the
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MOVIMOT drive in accordance with the operating characteristics, see "Operating
characteristics" in the "Technical data" chapter.
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• MOVIMOT drives in category 3D come equipped with a temperature switch (TH).
The TH trips if the motor winding temperature exceeds the maximum value.
• The tripping of the TH must be monitored by an independent evaluation unit.
• Disconnect the drive from the power supply source when the TH triggers.
• The TH automatically switches itself back on when the temperature drops below
the maximum value. A restart lock must prevent the drive from starting again.
• Notice: Do not switch the drive back on until the cause of the problem has been
checked. This check must be performed by a trained specialist.
In conjunction with the setpoint converter MLA12A, the TH is already wired at the fac-
tory. When the TH trips, the DC 24 V supply of the MOVIMOT
and the drive is stopped. At the same time, the ready contact of MOVIMOT
(terminal ready signal).
A restart lock must prevent the drive from being energized again automatically when
the TH switches back on.
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in conjunction with a fieldbus interface
Successful installation of decentralized drives depends on selecting the correct
cables, providing correct grounding, and a functioning equipotential bonding.
Always adhere to the relevant standards. Observe the following notes:
• Equipotential bonding
Low-impedance, HF-capable equipotential bonding must be provided independent
of the functional ground (PE terminal) (see also VDE 0113 or VDE 0100 part 540)
using, for example
– flat contact surface connection of metal components
– flat grounding strips (HF litz wire)
Do not use the cable shield of data lines for equipotential bonding.
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MM..D Drives
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inverter is interrupted
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drops out
interface fieldbus with in conjunction – MOVIMOT Connection