Networks; Terminals Recommended For Power Cables; Dynamic Braking - WEG CFW11W G2 Series User Manual

Installation and Connection
Use two cables in parallel with the gauge indicated in
3.2.9 IT Networks
NOTE!
3
The protection against ground fault (F074) is intended to the IGBT protection and cannot be activated
when the inverter output is in short circuit with the ground, when supplied by IT networks.
External insulation monitoring devices must be used for system fault tracking.

3.2.10 Terminals Recommended for Power Cables

Cable Gauge
Screw
[mm ]
2
95
M12
120

3.2.11 Dynamic Braking

The braking torque obtained by the application of frequency inverters without dynamic braking resistors varies
from 10 % to 35 % of the motor rated torque.
In order to obtain higher braking torques, use resistors for dynamic braking. In this case, the regenerated energy
in excess is dissipated in a resistor mounted outside the inverter.
This kind of braking is used in cases where short deceleration times are desired or when high-inertia loads are
driven.
For vector control mode, it is possible to use the "Optimal Braking", often eliminating the need for dynamic braking.
ATTENTION!
For the CFW-11W G2, use the DBW-04 braking module only. For further information, refer to the
manual of the accessory.
3-28 | CFW-11W G2
Table 3.14: Grounding cables
Current (A) Voltage (V)
780
500-690
640
Table 3.15: Terminals recommended for power cables
Manufacturer Lug Terminal, Code
Hollingsworth RM95-12
Tyco XCT 95-12
Hollingsworth RM120-12
Burndy (FCI) YA28L
Tyco XCT 120-12
Table 3.14 on page 3-28 to ground the UP11W power units.
Steady-state
Cross Section (mm²)
ND
HD
Crimping Tool, Code
Hydraulic tool H6-500
UNIPRESS 6/120 +COF+CHARG
Item TE: 2107475-2
Hydraulic tool H6-500
Tool without die: MY29-3 or Y644 or Y81
Tool+die: Y35 or Y750 / U29RT
UNIPRESS 6/120 +COF+CHARG
Item TE: 2107475-2
Minimum Cable
(2X) 120
(2X) 95
Number of
Crimps
1