Table of Contents
Advertisement
• If the three-phase motor is cooled using a separately driven fan, then it must be strictly
ensured that the three-phase motor can only be operated when the separately driven fan is
switched on.
• It is only permissible to use these motors if they are in full compliance with local regulations
(e.g. energy efficiency, product safety) in the country in which they are being used.
DMT 01 ATEX E 014X, RU С-DE.АЖ58.В.02301-22, EPS 21 UKEX 1 310 X:
• It is not permissible that the motors are operated if they have an excessively thick layer of dust
on them.
• When installing motors with the free shaft stub facing upwards, the mounting method must
prevent foreign bodies from falling into vent holes.
• For motors with a fixed connecting cable: The free end of the cable must be connected
according to valid regulations for electrical installations.
• If the three-phase motor is cooled using a separately driven fan, then it must be strictly
ensured that the motor can only be operated when the cooling is switched on.
• Before commissioning, it must be carefully ensured that when fed from a converter, no
inadmissibly high overvoltages occur at the motor terminals.
• The clearances and creepage distances in the terminal box do not permit overvoltages as a
result of converter operation with a periodic peak value of more than 1500 V for rated
voltages ≤ 500 V. The motor insulation system may mean that it is necessary to further limit
periodically occurring overvoltages.
BVS 14 ATEX E 081 X, BVS 14 ATEX E 082 X, IECEx BVS 14.0052X, 2020312301002068,
RU C-DE.AA81.B.00156-19, EPS 21 UKEX 1 301 X, EPS 21 UKEX 1 303 X:
• It is only permissible that the motor is fed from a voltage-source DC link converter with pulse
width modulation when the performance characteristics listed in Section 15.3
(ATEX) /"parameters" (IECEx) are strictly maintained.
• Before commissioning, it must be carefully ensured that when fed from a converter, no
inadmissibly high overvoltages occur at the motor terminals.
• The clearances and creepage distances in the terminal box do not permit overvoltages as a
result of converter operation with a periodic peak value of more than 1500 V for rated
voltages ≤ 1000 V. The motor insulation system may mean that it is necessary to further limit
periodically occurring overvoltages. If the motor is operated with a plastic fan, a
circumferential velocity of less than 50 m/s must be strictly maintained.
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A
Safety information
2.1 General safety instructions
23
Advertisement
Table of Contents
