SEW-Eurodrive MOVITRAC LTP-B, Краткое руководство по эксплуатации, Страница: 17 / 48

4
Installation
Electrical installation
Compact Operating Instructions – MOVITRAC
®
LTP-B
17
[1]
34106443147
SEW‑EURODRIVE recommends using earth-leakage monitors with pulse code mea-
surement in voltage supply systems with a non-grounded star point (IT systems). Us-
ing such devices prevents false tripping of the insulation monitor due to the earth ca-
pacitance of the inverter.
4.1.2 Connecting and installing the braking resistor
WARNING
Danger of electric shock. The supply cables to the braking resistors carry a high DC
voltage (approx. DC 900 V) during nominal operation.
Severe or fatal injuries.
• Before removing the supply cable, disconnect the inverter from the power supply
and wait at least 10 minutes.
CAUTION
Risk of burns. The surfaces of the braking resistors get very hot when the braking
resistors are loaded with P
N
.
Minor injuries.
• Choose a suitable installation location.
• Do not touch the braking resistors.
• Install a suitable touch guard.
The braking resistor is connected between the inverter terminals "BR" and "+". In case
of a new device, these terminals have a cover installed that can be broken out. Break
out the cover during first use.
• Shorten the cables to the required length.
26879778/EN – 03/2021