It Networks; Dynamic Braking - WEG CFW500 Manual Del Usuario

Seeing that:
ΔV - desired input power supply drop, in percentage (%).
V - voltage of the phase in inverter input, in volts (V).
e
- inverter output rated current.
I
s, rat
f - input power supply frequency.

3.2.3.3 IT Networks

ATTENTION!
When inverters with internal RFI filter are used in IT networks (neuter not
grounded or grounded through a high ohmic value resistor), always set the
grounding switch of the capacitors of the internal RFI filter to the NC position
(as shown in
damage to the filter capacitors of the inverter.

3.2.3.4 Dynamic Braking

NOTE!
The dynamic braking is available from frame B.
Refer to Table B.1 on page 146
current, resistance, effective current (*) and cable gauge.
Input power
supply
Command
power supply
Figure A.2 on page 143), since those kinds of network cause
for the following specifications of the dynamic braking: maximum
Contactor
Relay
Thermostat
Figure 3.2: Installation of brake resistor
Installation and Connection
R
S
T
BR +Ud
Brake
resistor
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