Siemens SINAMICS G115D

Parameter for
U/f control
Parameter for
vector control
Description Setting
p1294 p1254 Vdc_max control auto‐
matic ON level sensing
0: Automatic detection disabled
1: Automatic detection enabled
Factory setting: dependent upon the
converter
p0210 p0210 Unit supply voltage [V] If p1254 or p1294 = 0, the converter
uses this parameter to calculate the
switch-in thresholds of the Vdc_max
control. Set this parameter to the actual
value of the input voltage.
For more information about this function, see the List Manual (function diagrams 6320 and
6220).
Overview of the manuals (Page588)
7.27 Monitoring the driven load
In many applications, the speed and the torque of the motor can be used to determine
whether the driven load is in an impermissible operating state. The use of an appropriate
monitoring function in the converter prevents failures and damage to the machine or plant.
Examples:
• For fans or conveyor belts, an excessively low torque can mean a broken drive belt.
• For pumps, insu󹪟cient torque can indicate a leakage or dry-running.
• For extruders and mixers, an excessive torque together with low speed can indicate machine
blockage.
7.27.1 No-load monitoring
An insu󹪟cient motor current indicates that the motor cable is disconnected.
If the motor current for the time p2180 lies below the current level p2179, the converter
signals the alarm A07929.
Parameters
Parameter Description Setting
r0068[0…1] CO: Absolute actual current value
[A]
Displays actual absolute current.
[0] Unsmoothed
[1] Smoothed with p0045
p2179[0…n] Output load detection current limit
[A]
Sets the current limit for output load identi󹪝cation.
Factory setting: 0
Advanced commissioning
7.27Monitoring the driven load
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA 327