Siemens SINAMICS V20 - Page 305

Parameter list
8.2 Parameter list
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
303
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data
set
Data
type
Acc.
Level
P2285
PID integral time [s]
0.000 - 60.000
0.000
U, T
-
-
Float
2
Sets integral time constant for PID controller.
Note:
See P2280
P2291
PID output upper limit [%]
-200.00 - 200.00 100.00 U, T - - Float 2
Sets upper limit for PID controller output
Dependency:
If f_max (P1082) is greater than P2000 (reference frequency), either P2000 or P2291 (PID output upper
limit) must be changed to achieve f_max.
Note:
P2291 = 100 % corresponds to 4000 hex (as defined by P2000 (reference frequency)).
P2292
PID output lower limit [%]
-200.00 - 200.00
0.00
U, T
-
-
Float
2
Sets lower limit for the PID controller output.
Dependency:
A negative value allows bipolar operation of PID controller.
Note:
P2292 = 100 % corresponds to 4000 hex.
P2293
Ramp-up/-down time of
PID limit [s]
0.00 - 100.00 1.00 U, T - - Float 3
Sets maximum ramp rate on output of PID.
When PI is enabled, the output limits are ramped up from 0 to the limits set in P2291 (PID output upper
limit) and P2292 (PID output lower limit). Limits prevent large step changes appearing on the output of the
PID when the converter is started. Once the limits have been reached, the PID controller output is instan-
taneous. These ramp times are used whenever a RUN command is issued.
Note:
If an OFF1 or OFF 3 are issued, the converter output frequency ramps down as set in P1121 (ramp-down
time) or P1135 (OFF3 ramp-down time).
r2294
CO: Actual PID output [%]
-
-
-
-
-
Float
2
Displays PID output.
Note:
r2294 = 100 % corresponds to 4000 hex.
P2295
Gain applied to PID out-
put
-100.00 - 100.00 100.00 U, T - - Float 3
Allows the user to scale the PID output as a percentage value. A gain of 100.0 % means that output signal
has not changed from its default value.
Note:
The ramp rate applied by the PID controller is clamped to a rate of 0.1s/100% to protect the converter.
r2349
CO/BO: PID status word
-
0
-
-
-
U16
3
Displays PID status word.
Bit
Signal name
1 signal
0 signal
00
PID disabled
Yes
No
01
PID limit reached
Yes
No