Siemens SINAMICS V20 Series Operating Instructions Manual page 210

Parameter list
7.2 Parameter list
Parameter Function
P2372[0...2] Motor staging cycling
Enables motor cycling for the motor staging feature.
When enabled, the motor selected for staging / destaging is based on the hours run counter P2380. When
staging, the motor with the least hours is switched on. When destaging, the motor with most hours is
switched off.
If staged motors are different sizes the choice of motor is first based on required motor size, and then if
there is still a choice, on hours run.
0
1
P2373[0...2] Motor staging hysteresis
[%]
P2373 as a percentage of PID setpoint that PID error P2273 must be exceeded before staging delay
starts.
Note: The value of this parameter must always be smaller than delay override lockout timer P2377.
P2374[0...2] Motor staging delay [s]
Time that PID error P2273 must exceed motor staging hysteresis P2373 before staging occurs.
P2375[0...2] Motor destaging delay [s] 0 - 650
Time that PID error P2273 must exceed motor staging hysteresis P2373 before destaging occurs.
P2376[0...2] Motor staging delay
override [%]
P2376 as a percentage of PID setpoint. When the PID error P2273 exceeds this value, a motor is staged /
destaged irrespective of the delay timers.
Note: The value of this parameter must always be larger than staging hysteresis P2373.
P2377[0...2] Motor staging lockout
timer [s]
Time for which delay override is prevented after a motor has been staged or destaged.
This prevents a second staging event immediately after a first, being caused by the transient conditions
after the first staging event.
Motor staging frequency
P2378[0...2]
f_st [%]
The frequency as a percentage of maximum frequency. During a (de) staging event, as the inverter ramps
from maximum to minimum frequency (or vice versa) this is the frequency at which the digital output (DO)
is switched.
210
Range Factory
default
0 - 1 0
Disabled
Enabled
0.0 - 200.0 20.0
0 - 650 30
30
0.0 - 200.0 25.0
0 - 650 30
0.0 - 120.0 50.0
Can be Scaling
changed
T -
U, T PERCEN
T
U, T -
U, T -
U, T PERCEN
T
U, T -
U, T PERCEN
T
Operating Instructions, 07/2012, A5E03728167
Data Data Acc.
set type Level
DDS U16 3
DDS Float 3
DDS U16 3
DDS U16 3
DDS Float 3
DDS U16 3
DDS Float 3
SINAMICS V20 Inverter