Lenze i55AE155F

11.4.1 Example 1: Automac DC braking when the motor is started
In order that the DC braking is automacally acve when the motor is started, the start
method "DC braking [1]" must be set in 0x2838:001 (P203.01).
•
The DC braking is carried out with the braking current set in 0x2B84:001 (P704.01).
•
Only aer the hold me 0x2B84:002 (P704.02) has elapsed, the motor is accelerated to
the setpoint.
Parameter Name Seng for this example
0x2631:001 (P400.01) Enable inverter Digital input 1 [11]
0x2631:002 (P400.02) Run Digital input 2 [12]
0x2631:004 (P400.04) Reset fault Not connected [0]
0x2838:001 (P203.01) Start method DC braking [1]
0x2860:001 (P201.01) Frequency control: Default setpoint source Frequency preset 1 [11]
0x2911:001 (P450.01) Frequency setpoint presets: Preset 1 40 Hz
0x2B84:001 (P704.01) Current 50 %
0x2B84:002 (P704.02) Automac hold me 10 s
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
t
t
t
0x2DDD
Output frequency
Stop active [53]
DC braking active [67]
Running [50]
Status signals
DC brake
DC brake
DC brake
Digital input 2 [12] Run
Digital input 1 [11]
Output signals
Enable inverter
Input signals
Frequency setpoint selection
FunctionTrigger
The status signals can be assigned to digital outputs. 4Conguraon of digital outputs ^ 603
①
Aer the start command, the DC braking is acve. Only aer the hold me 0x2B84:002 (P704.02) has elapsed, the motor is accelerated to
the setpoint.
②
The motor is stopped with the stop method set in 0x2838:003 (P203.03). In the example: Stop with standard ramp.
③
If the inverter is disabled, the motor coasts.
Addional funcons
DC braking
Example 1: Automac DC braking when the motor is started
439