Lenze i550

11.1.1.3 Example 3: Pulse train as frequency setpoint source
This example shows a conguraon to control the frequency setpoint of the inverter via pulse
train:
•
Switch S1 starts the motor. Switch S1 in the inial posion stops the motor again.
•
Scaling of the pulse train signal: Input range -85 ... 85 kHz ≡ seng range -50 ... 50 Hz
•
HTL input monitoring is congured in such a way that a warning is output if the pulse train
signal falls below the minimum input frequency of 10 kHz for longer than 2 s.
Connecon plan Funcon
GND AI1 AI2 AO1
10V 24V DI1 DI2 DI3 DI4 DI5 DO1
X3
S1
Controller
COM
PTO2
PTO1
CCW
CW
Switch S1 Run
PTO1 Pulse train output of the Controller
PTO2 Specicaon of direcon of rotaon of the Con-
troller
Parameter Designaon Seng for this example
0x2631:001 (P400.01) Enable inverter Constant TRUE [1]
0x2631:002 (P400.02) Run Digital input 1 [11]
0x2630:002 (P410.02) Sengs for digital inputs: Input funcon Pulse train/direcon [3]
0x2860:001 (P201.01) Frequency control: Default setpoint source HTL input [4]
HTL input sengs
0x2640:001 (P415.01) Minimum frequency -85000.0 Hz
0x2640:002 (P415.02) Maximum frequency 85000.0 Hz
0x2640:003 (P415.03) Minimum motor frequency -50.0 Hz
0x2640:004 (P415.04) Maximum motor frequency 50.0 Hz
HTL input monitoring
0x2641:001 (P416.01) Minimum frequency threshold 10000.0 Hz
0x2641:002 (P416.02) Minimum delay threshold 2.0 s
0x2641:005 (P416.05) Monitoring condions Below minimum frequency [1]
0x2641:006 (P416.06) Error response Warning
I/O extensions and control connecons
Congure digital inputs
Congure digital inputs DI3/DI4 for detecng a pulse train
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