Siemens MICROMASTER 430 - Figure 4-4 Energy Saving Mode

4 MICROMASTER 430 functions
MICROMASTER 430 Operating Instructions
6SE6400-5AC00-0BP0
55
4.5.4 Energy Saving Mode
Energy saving mode to switch off the motor when it is in idle mode
PID error
PID feedback
(Sensor)
f
t
Energy saving mode active
% 100
5% P2390
P2000 fRestart
+
⋅=
f
Motor
P1080
P2390 [Hz]
f
Restart
P2391
PID active PID active
f*
PID setpoint
%
t
PID setpoint
% 100
P2390
P2000 [Hz] P2390 ⋅=
Load
PID
setpoint
PID
feedback
PID
RFG
PID
PID
limit
−
Motor
control
Energy
saving
mode
f(t)
P2392
P2273
(PID error)
f
Motor
Figure 4-4 Energy Saving Mode
Function
Energy saving mode extends the function of the PID controller.
This enables the motor to be operated for a defined period of time with a minimum
frequency and to switch it off afterwards. If the re-start frequency is reached, the
motor is automatically re-started again. Energy saving mode is independent of the
Motor Staging Function. It is possible to combine Motor Staging and Energy Saving
Mode.
For additional settings please refer to the parameter list P2390 and following.
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