4.8 Permanent–magnet synchronous motor with field–weakening (PE spindle)
4-161
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
The pre–setting (default) of the adaptation characteristic can, e.g. be
checked and set as follows:
1. Current setpoint input (amplitude = 2 % + offset = 0 %)
Check the start of the adaptation characteristic for I
q
= 0 %.
Step response?
OK: P1120 is correct
Not OK: Increase/decrease P1120
––> Target: Optimum transient response
(refer to Fig. 4-11, left)
2. Current setpoint input (amplitude = 2 % + offset = 100 %)
Check the constant adaptation characteristic range at I
q
= 100 %.
Step response?
OK: P1182 is correct
Not OK: Increase/decrease P1182
––> Objective: Optimum transient response
(refer to Fig. 4-11, left)
3. Current setpoint input (2 % amplitude + 30, 20, 10, 5 % offset)
Check the transition point and the gradient of the adaptation charac-
teristic at I
q
= 30 %, 20 %, 10 %.
Step response?
OK: P1181 is correct
Not OK: Increase/decrease P1181
––> Objective: Well dampened transient response
(refer to Fig. 4-11, right)
Note
The reference for the current setpoint (amplitude and offset) refer to
the power module transistor current (P1107, units: A(pk), peak value).
Example:
P1107 = 50 A(pk) ––> 50 A/√2 ≈ 36 A(rms) ––> 50 % 18 A
––> 10 % 3.6 A, etc.
Procedure
when checking the
adaptation
characteristic
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