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Diagnostics Optimization CT MODBUS RTU Technical Data
164 E300 Design Guide
Issue Number: 1
Figure 7-9 Start optimization
7.7.3 Start profile and control loop gains
The start profile for the Elevator system can be configured and adjusted using the following profile parameters and control loop gains. For Closed loop
operation, there are both speed loop and current control loop gains available. The following parameters are active from the Initial start, Run Jerk 1
(G13), Acceleration and to the end of acceleration Run Jerk 2 (G14).
Table 7-18 Start profile parameters
The speed control loop gains can be limited dependant on the resolution of the position feedback device, low resolution, or due to induced noise on
the encoder feedback due to cable, screen and ground terminations. Drive Encoder Feedback Filter (C09) can be used to overcome these issues and
allow higher speed control loop gains.
Parameter Details
Run Jerk 1 (G13) Start jerk, active during the start from zero speed or following the start optimizer.
Acceleration Rate (G11) Acceleration rate
Run Jerk 2 (G14) End of acceleration jerk
Start Lock Kp Speed Clamp (I21) Kp position control gain used to prevent roll back during brake release.
Start Speed Loop Kp (I01)
Start Speed Loop Ki (I02)
Start speed control loop gains active during the start to the speed threshold level where a change is made to
the travel speed control loop gains.
Start Current Loop P Gain (I03)
Start Current Loop I Gain (I04)
Start current control loop gains = autotune values
Variable Gains Transition Speed
Threshold (I16)
Transition time from the start to travel speed and current control loop gains.
Start Current Loop Filter (I05) Current loop filter for start
Drive Encoder Feedback Filter (C09) Position feedback
Jerk
Speed
Start optimizer
Time
Drive enable
Start optimizer
Brake release
Start Optimizer Speed ()G46
Start Optimizer Jerk ()G47
Start Optimizer Time ()G48
Acceleration Rate ( )G11
Start Speed Loop P Gain ()I01
Start Speed Loop I Gain ()I02
Run Jerk 1 ()G13
Start Optimizer Enable ()G45
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