Analog Inputs (Ais) - Siemens SINAMICS V90 Operating Manual

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4.3 Commissioning
Assigning warning signals to digital outputs
You can assign two groups of warning signals to digital outputs with parameters p29340 (first
group of warning signals active) and p29341 (second group of warning signals active).
Setting (p29340/p29341)
1
2
3
4
5
6
If warning condition assigned to p29340 occurs, WARNING1 becomes ON.
If warning condition assigned to p29341 occurs, WARNING2 becomes ON.
4.3.1.5

Analog inputs (AIs)

Two analog inputs in total are available:
● AI1: linked with speed related signals.
● AI2: linked with torque related signals.
In different control modes, the analog inputs are linked with different signals:
Control mode
Position (PTI and IPos)
S
T
PTI/S and IPos/S
PTI/T and IPos/T
S/T
74
Warning conditions
Overload protection: load factor is 85% of or above the motor utiliza-
tion.
Braking resistor: capacity of the braking resistor is 85% of or above
the resistor power rating.
Fan alarm: fan has stopped for 1 second or longer.
Encoder alarm
Motor overheat: motor has reached 85% of the maximum allowed
motor temperature.
Lifetime detection: the life expectancy of the capacity or the fan is
shorter than the specified time.
AI1
Not used
Speed setpoint
Speed limitation
Not used in position control
modes
--> Speed setpoint in S mode
Not used in position control
modes
-->Speed limitation in T mode
Speed setpoint in S mode
--> Speed limitation in T mode
AI2
Torque limitation
Torque limitation
Torque setpoint
Torque limitation
Torque limitation in position
control modes
--> Torque setpoint in T mode
Torque limitation in S mode
--> Torque setpoint in T mode
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Operating Manual, 02/2015, A5E32187373-003