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14.11.16
Messages/Monitoring functions
14.11.16.1
Stall message
Overview
If the load of a standard induction motor exceeds the stall torque of the motor, the motor
can stall even during operation on the converter. A stalled motor is stationary and does not
develop sufficient torque to accelerate the load.
The "Stall message" function detects the overload of a standard induction motor. The
function stops the motor and generates a suitable message.
Description of function
If error signal r1746 exceeds the parameterized error threshold p1745, the converter sets status
signal r1408.12 = 1, thus detecting the stalling of the drive. After a defined delay time p2178,
the converter outputs fault F07902.
The function is only effective in the low-speed range.
Parameters
The following list contains the parameters of the "Stall message" function.
Number
r1408.0...31
p1745[0...n]
r1746[0...5]
p2178[0...n]
r2198.0...13
14.11.16.2
Blocking message
Overview
The "Blocking message" function detects that a stuck load machine is preventing the motor
from rotating. The function stops the motor and generates a suitable message.
Description of function
If the speed lies below the speed threshold p2175 for the time p2177 and the motor current
simultaneously reaches the current limit, the converter signals "Motor blocked" and fault
F07900.
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
Name
Status word current controller
Motor model error threshold stall detection
Motor model error signal/threshold value stall detection
Motor stalled delay time
Status word monitoring 2
Functions
14.11 Drive functions
Unit
[%]
[%]
[s]
617
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