WEG CFW-11 Programming Manual page 218

Dynamic Braking
The next table presents the overvoltage trip level.
Steps to enable the dynamic braking:
Connect the braking resistor (Refer to the item 3.2.3.2 - Dynamic Braking, of the user's manual).
Set P0154 and P0155 according to the used braking resistor.
Set P0151 or P0185 at the maximum value: 400 V (P0296 = 0), 800 V (P0296 = 1, 2, 3 or 4), 1000 V
(P0296 = 5, 6 or 7) or 1200 V (P0296 = 8), according to the case, in order to prevent the activation of
the DC voltage regulation before the dynamic braking.
P0154 – Dynamic Braking Resistor
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
Adjust this parameter with the ohmic value of the used braking resistor.
14
If P0154 = 0, the braking resistor overload protection is disabled. It must be programmed in zero if no braking
resistor is used.
14-2
Table 14.1 - Overvoltage (F022) trip levels
Inverter V
nom
220/230 V
380 V
400/415 V
440/460 V
480 V
500/525 V
550/575 V
600 V
660/690 V
DC Link Voltage (U
P0153
Rated U
d
Braking Resistor
Voltage (DB)
Figure 14.1 - Dynamic Braking actuation curve
0.0 to 500.0 ohm
01 PARAMETER GROUPS
28 Dynamic Braking
P0296 F022
0 > 400 V
1
2
> 800 V
3
4
5
6 > 1000 V
7
8 > 1200 V
) (P0004)
d
F022 - Overvoltage
Dynamic braking actuation
Time
U U
d d
Time
Factory 0.0 ohm
Setting: