4
Installation
Electrical installation
Compact Operating Instructions – MOVITRAC
®
LTP-B
15
4
Installation
4.1
Electrical installation
WARNING
Electric shock due to charged capacitors. Dangerous voltage levels may still be
present inside the device and at the terminals up to 10 minutes after disconnection
from the power supply.
Severe or fatal injuries.
•
Wait 10 minutes after you have de-energized the inverter and have switched off
the line voltage and the DC 24 V voltage. Do not start working on the device until
you have made sure that it is de-energized.
WARNING
Danger of fatal injury due to falling hoist.
Severe or fatal injuries.
•
The inverter is not designed for use as a safety device in lifting applications. Use
monitoring systems or mechanical protection devices to ensure safety.
•
The inverters may only be installed by electrical specialists in compliance with the
applicable directives and regulations.
•
The grounding cable must be designed for the maximum fault current of the
voltage source that is usually limited by fuses or motor protection switches.
•
The inverter has the degree of protection IP20. For a higher IP degree of protec-
tion, a suitable enclosure or the IP55/NEMA 12K or the IP66/NEMA 4X variant has
to be used.
•
Make sure the devices are properly grounded. Adhere to the wiring diagram in
chapter "Connecting the inverter and motor" (→
23).
4.1.1
Operation on an IT system
WARNING
Danger of electric shock. Dangerous voltage levels may still be present inside the in-
verter and at the terminals up to 10 minutes after disconnection from the supply sys-
tem.
Severe or fatal injuries.
•
Disconnect the inverter from the power supply at least 10 minutes before you
screw out the EMC and VAR screw.
•
Inverters with IP20 and IP66 degree of protection must be converted by the user
before they are operated on the IT system.
•
Inverters with IP55 degree of protection cannot be converted by the user.
•
The IT system version without LTP-B...-15 filter must be used for the 3 × 380 –
480 V devices with IP55 degree of protection. (3-phase system AC380 – 480 V as
an IT system version – device without filter)
•
For all other inverters with IP55 degree of protection, contact SEW‑EURODRIVE.
26879778/EN – 03/2021
Содержание MOVITRAC LTP-B
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