Control functions
7.2 General functions
SINAMICS V90, SIMOTICS S-1FL6
218
Operating Instructions, 04/2019, A5E36037884-007
Example
This example shows the operating procedures when you use the "Travel to fixed stop"
function in PTI control mode.
Prerequisites:
Use a 0.4 kW low inertia motor (rated torque = 1.27 Nm)
Procedures:
1.
Set the p29045 = 1 to enable the "Travel to fixed stop" function.
2.
Set the required torque limit. The smaller value of the following two torque limits will be
the active one.
Example
Internal torque limit TLM1:
–
p29050[0] = 300 → Positive torque limit
–
p29051[0] =
-
300 → Negative torque limit
Overall torque limit:
–
p1520 = 100 Nm → Positive overall torque limit
–
p1521 = -150 Nm
→ Negative overall torque limit
Actual torque limit = 300% × 1.27 Nm = 3.81 Nm
3.
Servo on the motor and it traverses to the fixed stop.
The motor runs at the set speed until it reaches the stop and continues to work against
the stop until the torque limit has been reached.
