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Monitoring the speed deviation between the motor model and the external speed
The external actual speed (r1443) is compared with the actual speed of the motor model
(r2169). If the deviation is greater than the tolerance threshold set in p3236, after the switch-
off delay time set in p3238 expires, fault F07937 (Drive: Speed deviation motor model to
external speed) is generated and the drive switched-off corresponding to the set response
(factory setting: OFF2).
Figure 7-20
Function diagrams
FP 6040
FP 8012
Parameters
• r0063[0]
• p1440
• p1442
• r1443
• p1452
• r2169
• r2199.7
• p3236
• p3237
• p3238
Converter cabinet units
Operating Instructions, 11/2017, A5E36652151A
"Model / external speed deviation in tolerance" monitoring
Vector control – Speed controller with/without encoder
Signals and monitoring function – Torque messages, motor blocked/stalled
Actual speed unsmoothed
CI: Speed controller actual speed value
Speed controller actual speed value smoothing time
CO: Speed controller actual speed value at actual value input
Speed controller actual speed value smoothing time (without encoder)
CO: Actual speed value smoothed, messages
Model / external speed deviation in tolerance
Speed threshold 7
Hysteresis speed 7
OFF delay n_act_motor_model = n_act_external
Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without an encoder
465
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