Control Techniques M'Ax 403, Руководство пользователя

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M’Ax User Guide
105
Issue Number: 4
Example
1. Set 4.53 Symmetrical current limit after motor thermal-overload
alarm at 200 (the largest of the symmetrical current limit values).
2. Set 4.54 Thermal-overload time to trip at 12 (process cycle time,
rounded-up to nearest integer).
3. Calculate the following:
4. Calculate the following:
5. Calculate the following:
6. Enter the calculated value into 4.52 .
7. Perform the following, as appropriate:
Version _AN
Initiate the save operation by setting parameter XX.00 at 1000 .
Execute the operation by performing either of the following:
•
While the display is in Edit mode, press at the same time:
• Set parameter 10.38 at 100 (via serial communications)
Version _SL
Version _AN
(if required)
Ensure the Drive is disabled by checking that the
Hardware enable
contact is open or that parameter 6.15 is set at 0 , then perform either
of the following:
•
Initiate the store operation by setting parameter
0.50
at
2
(
Prog
).
Execute the operation by setting parameter 10.38 at 100 .
Set 11.67 Flash update enable at 1 .
Parameter Value
4.15 Motor – thermal time-constant 89
4.07 Symmetrical current limit Kc1 150
4.24 Symmetrical current limit Kc2 200
4.28 Symmetrical current limit Kc3 175
Process cycle time 11.5s
Gain sequencing using all three PID-gains buffers
t
c
4.15
[ ]
–
In 1
2
105
2
4.53
[ ]
-------------------
–
è ø
ç ÷
æ ö
×
=
t
c
89
–
In 1
2
105
2
200
------------
–
è ø
ç ÷
æ ö
×
28.7 s
( )
= =
t
D
t
C
4.54
[ ]
–
28.7 12
–
16.7 s
( )
= = =
4.52
[ ]
4.53
[ ]
1 e
t –
D
4.15
[ ]
⁄
–
×
=
4.52
[ ]
200
[ ]
1 e
16.7
–
( )
89
⁄
–
×
82.7 = =
(%)
and