01/02 AWB8230-1413GB
Start/stop
85
Activate DC braking (DB)
DC braking can be activated either through a digital input
configured as DB or automatically when a specific frequency is
reached.
X Program one of the digital inputs 1 to 5 as DB by entering the
value 07 under the corresponding PNU (C001 to C005).
X For automatic braking, enter 01 under PNU A051.
X Under PNU A052, enter the frequency at which DC braking is
activated.
X Under PNU A053, enter the waiting time which is to expire after
activation of the DB input before DC braking is activated.
X Under PNU A054, enter the braking torque between 0 and
100 %.
X Under PNU A055, enter the braking duration.
X Under PNU A056, specify the braking behaviour when the DB
input is active.
X Under PNU A057, enter the starting braking torque (0 to
100 %) for braking the motor before acceleration.
X Under PNU A058, enter the duration for which DC braking is
active before acceleration.
X Under PNU A059, set the pulse frequency (observe derating
above 5 kHz) for DC braking.
PNU Name Adjustable in RUN mode Value Function WE
Normal Extended
A051 DC braking – j 00 Inactive 00
01 Active
A052 Activation
frequency
0 to 60 Hz When this frequency is reached, the waiting time PNU A053
begins.
0.50
A053 Waiting time
0 to 5 s DC braking begins after the time set here. 0.0
A054 Braking torque
0 to 100% Applied DC braking torque 0
A055 Braking
duration
0 to 60 s This time starts when the waiting time entered under
PNU A53 has expired.
0.0
A056 Characteristic
00 DC braking starts when the DB input is activated and ends
when the time defined under PNU A055 has expired.
01
01 DC braking starts when the DB input is activated and ends
when the DB input is deactivated.
A057 Starting
braking torque
0 to 100% Braking torque applied on initial brake application 0
A058 Starting
braking time
0 to 60 s Braking time before acceleration 0.0
A059 Pulse
frequency
– – 0.5 to 12 kHz DC braking pulse frequency 5
Figure 76: Digital input FW configured as FWD (start/stop clockwise
operation), 3 as (DC braking) and 5 as REV (start/stop
anticlockwise operation)
REV
FWD
DB
P24FW35
efesotomasyon.com - Klockner Moeller - inverter
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