Advanced commissioning
6.12 Setpoints
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
173
Figure 6-31 Binary selection of the fixed speed setpoint
Example
After it has been switched on, a conveyor belt only runs with two different velocities. The
motor should now operate with the following corresponding speeds:
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The signal at digital input 0 switches the motor on and accelerates it up to 300 rpm.
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The signal at digital input 1 accelerates the motor up to 2000 rpm.
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With signals at both digital inputs, the motor accelerates up to 2300 rpm.
Table 6- 19 Settings for the application example
Parameter
Description
p1001[0] = 300.000
Fixed speed setpoint 1 [rpm]
p1002[0] = 2000.000
Fixed speed setpoint 2 [rpm]
p0840[0] = 722.0
ON/OFF1: Switches on the motor with digital input 0
p1070[0] = 1024
Main setpoint: Interconnects the main setpoint with a fixed speed setpoint.
p1020[0] = 722.0
Fixed speed setpoint selection, bit 0: Interconnects fixed speed setpoint 1
with digital input 0 (DI 0).
p1021[0] = 722.1
Fixed speed setpoint selection, bit 1: Interconnects fixed speed setpoint 2
with digital input 1 (DI 1).
p1016 = 1
Fixed speed setpoint mode: Directly selects fixed speed setpoints.
Table 6- 20 Resulting fixed speed setpoints for the application example
Fixed speed setpoint selected via
Resulting setpoint
DI 0 = 0
Motor stops
DI 0 = 1 and DI 1 = 0
300 rpm
DI 0 = 1 and DI 1 = 1
2300 rpm