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Functions
7.4 Setpoint sources
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
165
Example: Selecting two fixed speed setpoints using digital input 2 and digital input 3
The motor is to run at two different speeds:
● The motor is switched on with digital input 0
● When digital input 2 is selected, the motor is to run at a speed of 300 rpm.
● When digital input 3 is selected, the motor is to accelerate to a speed of 2000 rpm.
● When digital input 1 is selected, the motor should go into reverse
Table 7- 9
Parameter settings for the example
Parameter
Description
P0700 = 2
Selecting the command source: Digital inputs
P0701 = 1
Switching on motor using DI 0 - factory setting
P0702 = 12
Direction reversal using DI 1 - factory setting
P1001 = 300.000
Defines the fixed setpoint 1 in [rpm]
P1002 = 2000.000
Defines the fixed setpoint 2 in [rpm]
P1020 = 722.2
Connect up fixed setpoint 2 with DI 2.
r0722.2 = Parameter, which displays the status of digital input 2.
P1021 = 722.3
Connect fixed setpoint 3 with the status of DI 3.
r0722.3 = Parameter, which displays the status of digital input 3.
7.4.5
Running the motor in jog mode (JOG function)
Using the "jog" function (JOG function), you can switch the motor on and off using a control
command or the operator panel. The speed to which the motor accelerates for "Jog" can be
set.
The motor must be switched-off before you issue the "jog" control command. "Jog" has no
effect when the motor is switched on.
The "Jog" function is typically used to manually switch-on a motor after switching over from
automatic to manual operation.
Setting jogging
The "Jog" function has two different speed setpoints, e.g. for motor counter-clockwise
rotation and clockwise rotation.
With an operator panel, you can always select the "Jog" function. If you wish to use
additional digital inputs as control commands, you must interconnect the particular signal
source with a digital input.