Siemens SINAMICS G120 Operating Instructions Manual page 338

Advanced commissioning
6.31 Monitoring the driven load
Parameter
p2181
p2182
p2183
p2184
p2186
p2188
p2190
p2191
p2192
p2193 = 4 or 5
338
Description
Load monitoring response
7: A07891: Load monitoring, pump/fan blocked
A07892: Load monitoring, pump/fan without load
A07893: Load monitoring, pump leakage
8: F07894: Load monitoring, pump/fan blocked
F07895: Load monitoring, pump/fan without load
F07896: Load monitoring, pump leakage
Load monitoring speed threshold 1
● When using the control mode "U/f control" (p1300 < 10):
p2182 > 10% of the rated speed
● When using the control mode "encoderless vector control"
(p1300 = 20):
p2182 > p1755 (switchover speed, motor model)
Load monitoring speed threshold 2
Load monitoring speed threshold 3
Load monitoring torque threshold 1, lower
Load monitoring torque threshold 2, lower
Load monitoring torque threshold 3, lower
Load monitoring torque threshold, no load
Load monitoring delay time
When using the control mode "encoderless vector control" (p1300 = 20):
● For operation with an induction motor: Set p2192 < 1 s or p1750.6 = 1 (the closed-
loop control does not change to open-loop controlled mode for blocked motor)
● For operation with synchronous and reluctance motors, the inverter sometimes
cannot detect a blocked motor.
Load monitoring configuration (factory setting: 1)
4: Pump monitoring: Differentiation between leakage and dry running
5: Fan monitoring: p2191 has no effect
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
The inverter interpo‐
lates linearly be‐
tween characteristic
points.
Converter with the CU230P-2 Control Units