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3 Functions
Issue 07/04
MICROMASTER 420 Operating Instructions
150
6SE6400-5AA00-0BP0
3.21.1.5
Current limiting (Imax controller)
Parameter range:
P1340 – P1344
r0056 bit 13
Warnings A0501
Faults F0001
Function chart number:
FP6100
Our drive inverters have, in the V/f characteristic mode, a current limiting controller
(Imax controller, refer to Fig. 3-64). This controller avoids overload conditions. This
controller protects the drive inverter and the motor against continuous overload
conditions by automatically reducing the drive inverter output frequency by f
Imax
(r1343) or the drive inverter output voltage by V
Imax
(r1344). By either reducing the
output frequency or the output voltage, this reduces the load on the drive inverter
and protects against continuous damage.
Imax controller setpoint
+
−
r1343
CO:Imax ctrl Foutp
r1344
CO:Imax ctrl Voutp
Current feedback
r0067
CO: Outp cur limit [A]
r0068
CO: Output current [A]
Motor ovl fact [%]
10.0 ... 400.0 [%]
P0640.D (150.0)
Motor temperatur
Inverter temperatur
i
2
t inverter
Motor ovl fact [%]
10.0 ... 400.0 [%]
P0640.D (150.0)
Imax ctrl prp gain
0.000 ... 5.499
P1345.D (0.250)
Kp
Tn
Kp
Tn
Imax ctrl int time
0.000 ... 50.000 [s]
P1346.D (0.300)
Imax ctrl prp gain
0.000 ... 0.499
P1340.D (0.000)
Imax ctrl int time
0.000 ... 50.000 [s]
P1346.D (0.300)
U
I_max
f
I_max
Fig. 3-64
Imax controller
NOTE
A reduction in the frequency only reduces the load if the load decreases at lower
speeds (e.g. square-law torque-speed characteristic of the driven load).
Содержание MICROMASTER 420
Страница 10: ...Safety Instructions Issue 07 04 MICROMASTER 420 Operating Instructions 10 6SE6400 5AA00 0BP0 ...
Страница 16: ...Table of Contents Issue 07 04 MICROMASTER 420 Operating Instructions 16 6SE6400 5AA00 0BP0 ...
Страница 34: ...2 Installation Issue 07 04 MICROMASTER 420 Operating Instructions 34 6SE6400 5AA00 0BP0 ...
Страница 156: ...4 Troubleshooting Issue 07 04 MICROMASTER 420 Operating Instructions 156 6SE6400 5AA00 0BP0 ...
Страница 166: ...6 Options Issue 07 04 MICROMASTER 420 Operating Instructions 166 6SE6400 5AA00 0BP0 ...
Страница 188: ...MICROMASTER 420 Operating Instructions 188 6SE6400 5AA00 0BP0 ...