English (GB)
22
8.4.4 INSTALLATION menu
Control mode
Select one of the following control modes:
• Closed loop
• Open loop.
Controller
In this display, the gain (K
p
) and the integral-action time (T
i
) of the
built-in PI controller can be set if the factory setting is not the
optimum setting:
• Set the gain (K
p
) within the range from 0.1 to 20.
• Set the integral-action time (T
i
) within the range from 0.1 to
3600 s.
If 3600 s is selected, the controller will function as a P
controller.
Setting the PI controller
1. Start the motor and adjust the system so that the motor is
operating in the typical operating situation.
2. Set the integral-action time (T
i
) to 3600 s.
3. Increase the gain (K
p
) until the motor operation becomes
unstable, i.e. until the actual value starts fluctuating.
See section Actual controlled value, page 20. Instability can
also be heard because the motor starts adjusting the speed
up and down. Some systems react slowly, for example during
temperature control. Therefore, several minutes may pass
before the motor operation becomes unstable.
4. Set the gain (K
p
) to half of the value that made the motor
unstable. Then the gain has been set.
5. Reduce the integral-action time (T
i
) until the motor becomes
unstable.
6. Set the integral-action time (T
i
) to twice the value that made
the motor unstable. The PI controller has now been set.
Inverse control
It is possible to set the controller to inverse control (if the setpoint
is increased, the speed will be reduced). In the case of inverse
control, the gain (K
p
) must be set within the range from -0.1 to
-20.
Signal relay 1 and 2
The signal relays can be configured to be activated by one of the
following incidents:
• Ready
• Operation
•Alarm
• Warning
• Limit 2 exceeded
• Limit 1 exceeded
• Running
•Not active.
The number of available displays depends on the functional
module fitted in the motor. See below.
Buttons on motor
The buttons and on the motor can be set to the following:
•Active
•Not active.
Number
A number between 1 and 64 can be allocated to the motor or can
be changed. In the case of bus communication, a number must
be allocated to each motor.
If the motor is connected to a bus (see section
10. Bus signal), it is not possible to select the
control mode via the R100.
Function (terminal) FM 100 FM 200 FM 300
Signal relay 1 (NC, C1, NO) - ●●
Signal relay 2 (NC, C2, NO) - ●●
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