SEW-Eurodrive Movigear Performance MGF**-DFC-C Series, Руководство по эксплуатации

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5
Electrical installation
Installation instructions
Operating Instructions – MOVIGEAR
®
performance
72
[1] Forked cable lug suitable for M5 PE screws
Leakage currents
Earth-leakage currents ≥ 3.5 mA can occur during normal operation. In order to fulfill
EN 61800-5-1, observe the following notes:
• The protective earth (PE) connection must meet the requirements for systems with
high earth-leakage currents.
• This usually means
– installing a PE connection cable with a minimum cross section of 10 mm
2
(cop-
per conductor)
– or installing a second PE connection cable in parallel with the original PE con-
nection.
The second PE connection is not required according to DIN EN 61800-5-1, if
the line connection is equipped with a plug connector for industrial applications
(according to IEC 60309) and if the supply system cable has a diameter of
≥
2.5 mm
2
.
INFORMATION
The round M23 plug connector of the 723 series by TE Connectivity - Intercontec
products meet the requirements according to IEC 60309 "Plug connectors for indus-
trial applications".
5.3.10 Installation above 1000 m amsl
You can install the drive units at altitudes from 1000 m to a maximum of 3800 m
above sea level provided the following conditions are met.
1)
• The nominal motor current I
N
is reduced due to the reduced cooling above 1000 m
(see the chapter "Technical data and dimension sheets").
• Above 2000 m above sea level, the air and creeping distances are only sufficient
for overvoltage category II. If the installation requires overvoltage category III, you
will have to install additional external overvoltage protection to limit overvoltage
peaks to 1.5 kV phase-to-phase and 2.5 kV phase-to-ground.
• If safe electrical disconnection is required, it must be implemented outside the unit
for altitudes of 2000 m above sea level and higher (safe electrical disconnection in
accordance with EN 61800‑5‑1).
• At installation altitudes between 2000 m and 3800 m above sea level, the permit-
ted rated power supply voltages are reduced as follows:
– By 6 V per 100 m
1) The maximum altitude is limited by the reduced electric strength due to the lower air density.
5.3.11 Protection devices
• The following units come equipped with integrated protection devices against over-
load.
• Cable protection for the power cable must be implemented using external overload
devices.
• Observe the relevant standards concerning the cable cross section, voltage drop
and installation type.
25945475/EN – 04/2019