Siemens SINAMICS V20 Operating Instructions Manual page 240

Parameter list
7.2 Parameter list
Parameter Function
Defines the threshold of the monitoring function |f_act| > P2167 (f_off). P2167 influences following func-
tions:
If the actual frequency falls below this threshold and the time delay has expired, bit 1 in status word 2
•
(r0053) is reset.
If an OFF1 or OFF3 was applied and bit 1 is reset the inverter will disable the pulse (OFF2).
•
P2168[0...2] Delay time T_off [ms]
Defines time for which the inverter may operate below switch-off frequency (P2167) before switch off
occurs.
Dependency: Active if holding brake (P1215) not parameterized.
P2170[0...2] Threshold current
I_thresh [%]
Defines threshold current relative to P0305 (rated motor current) to be used in comparisons of I_act and
I_Thresh. This threshold controls bit 3 in status word 3 (r0053).
P2171[0...2] Delay time current [ms]
Defines delay time prior to activation of current comparison.
P2172[0...2] Threshold DC-link voltage
[V]
Defines DC link voltage to be compared to actual voltage. This voltage controls bits 7 and 8 in status word
3 (r0053).
P2173[0...2] Delay time DC-link volt-
age [ms]
Defines delay time prior to activation of threshold comparison.
P2177[0...2] Delay time for motor is
blocked [ms]
Delay time for identifying that the motor is blocked.
P2179 Current limit for no load
identified [%]
Threshold current for A922 (no load applied to inverter) relative to P0305 (rated motor current).
Notice: If a motor setpoint cannot be entered and the current limit (P2179) is not exceeded, warning A922 (no
load applied) is issued when delay time (P2180) expires.
Note: It may be that the motor is not connected or a phase could be missing.
P2180 Delay time for no-load
detection [ms]
Delay time for detecting a missing output load.
P2181[0...2] Load monitoring mode
240
Range Factory Can be
default changed
0 - 10000 0 U, T
0.00 - 400.0 100.0 U, T
0 - 10000 10 U, T
0 - 2000 800 U, T
0 - 10000 10 U, T
0 - 10000 10 U, T
0.00 - 10.0 3.0 U, T
0 - 10000 2000 U, T
0 - 6 0 T
Scaling Data
set
- DDS
- DDS
- DDS
- DDS
- DDS
- DDS
- -
- -
- DDS
SINAMICS V20 Inverter
Operating Instructions, 09/2014, A5E34559884
Data Acc.
type Level
U16 3
Float 3
U16 3
U16 3
U16 3
U16 3
Float 3
U16 3
U16 3