Example 4: Quick Stop - Lenze i55AE125B Manual

Flexible I/O configuration
Start / stop motor

Example 4: Quick stop

14.2.4 Example 4: Quick stop
This example illustrates the "quick stop" function. If quick stop is activated, the motor is
brought to a standstill within the deceleration time set in
Switch S1 starts the motor in forward direction of rotation. Switch S1 in the initial position
•
stops the motor again.
Switch S2 activates the "quick stop" function.
•
Cancelling the quick stop causes a restart of the motor if "Run" is still active
(switch S1 closed)!
Connection plan
X3
0 ... 10 V
R1
Parameter
0x2631:001 (P400.01)
0x2631:002 (P400.02)
0x2631:003 (P400.03)
0x2631:004 (P400.04)
0x2917 (P220.00)
0x2918 (P221.00)
0x291C (P225.00)
Input signals
Frequency setpoint selection
Trigger Function
Constant TRUE [1] Enable inverter
Digital input 1 [11] Run
Digital input 2 [12] Activate quick stop
Output signals
Output frequency
0x2DDD
Status signals
Running [50]
Stop active [53]
Quick stop active [54]
The status signals can be assigned to digital outputs.
If quick stop is activated, the motor is decelerated to the frequency setpoint 0 Hz within a short period of time. The "Quick stop active [54]"
①
status is set as long as quick stop is activated. The "Stop active [53]" status is not set.
An active stop command is interrupted by a quick stop.
②
If quick stop is cancelled again before standstill is reached, stopping is continued with the stop method set in
③
example: Stop with standard ramp.
542
S1 S2
Name
Enable inverter
Run
Activate quick stop
Reset fault
Acceleration time 1
Deceleration time 1
Quick stop deceleration time
60 Hz
50 Hz
40 Hz
30 Hz
20 Hz
10 Hz
0 Hz
60 Hz
50 Hz
40 Hz
30 Hz
20 Hz
10 Hz
0 Hz
-10 Hz
-20 Hz
-30 Hz
-40 Hz
-50 Hz
-60 Hz
4Configuration of digital outputs
0x291C (P225.00).
function
Potentiometer R1 Frequency setpoint selection
Switch S1 Run
Switch S2 Activate quick stop
Setting for this example
Constant TRUE [1]
Digital input 1 [11]
Digital input 2 [12]
Not connected [0]
3.0 s
3.0 s
1.0 s
^ 603
t
t
t
t
t
t
t
t
0x2838:003 (P203.03). In the