Siemens SINAMICS V20 Operating Instructions Manual page 259

Parameter Function
P1135[0...2] OFF3 ramp-down time
[s]
Defines ramp-down time from maximum frequency to standstill for OFF3 command. Settings in P1130 and
P1134 will have no effect on OFF3 ramp-down characteristic. An initial ramp-down rounding time of ap-
proximately 10% of P1135 is however included. For the total OFF3 ramp-down time: t_down,OFF3 =
f(P1134) = 1.1 * P1135 * (|f_2|/P1082)
Note: This time may be exceeded if the Vdc_max level is reached.
P1138[0...2] Ramp-up time scaling
factor
Defines the scaling factor for the ramp-up time. This is a ramp-up time multiplier, extending the maximum
ramp-up time to 6500 s. Set ramp-up time = ramp-up time scaling factor (P1138) x ramp-up time (P1120).
Note: This time may be exceeded if the Vdc_max level is reached.
P1139[0...2] Ramp-down time scaling
factor
Defines the scaling factor for the ramp-down time.This is a ramp-down time multiplier, extending the max-
imum ramp-down time to 6500 s. Set ramp-down time = ramp-down time scaling factor (P1139) x ramp-
down time (P1121).
Note: This time may be exceeded if the VDC_max level is reached.
P1140[0...2] BI: RFG enable
Defines command source of RFG enable command (RFG: ramp function generator). If binary input is
equal to zero then the RFG output will be set immediately to 0.
P1141[0...2] BI: RFG start
Defines command source of RFG start command (RFG: ramp function generator). If binary input is equal
to zero then the RFG output is held at its present value.
P1142[0...2] BI: RFG enable setpoint
Defines command source of RFG enable setpoint command (RFG: ramp function generator). If binary
input is equal to zero, the RFG input will be set to zero and the RFG output will ramp-down to zero.
r1170 CO: Frequency setpoint
after RFG [Hz]
Displays overall frequency setpoint after ramp generator.
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Range Factory
default
0.00 - 650.00 5.00
1.00 - 10.00 1.00
1.00 - 10.00 1.00
0 - 4294967295 1
0 - 4294967295 1
0 - 4294967295 1
- -
Can be Scaling Data
changed set
C, U, T - DDS
C, U, T - DDS
C, U, T - DDS
T - CDS
T - CDS
T - CDS
- - -
Parameter list
8.2 Parameter list
Data Acc.
type Level
Float 2
Float 1
Float 1
U32 3
U32 3
U32 3
Float 3
257