B-14, Inverter overload it, B-14 control block diagrams – Rockwell Automation 20D PowerFlex 700S Drive Ph I Control, Frames 1...11 User Manual
Page 206
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B-14
Control Block Diagrams
NTC
Pwr EE Data
Iq Ref Limited
(see torque block)
Exception Event1
Duty Cycle
Bus Voltage
PWM Frequency
Power Device
Characteristics
Motor NP FLA
Output current
Mtr Over Load (I
2
T)
60
1.0
pu_current
pu_current
2.0 typ
right of curve
1.025 typ
time (sec)
pu motor
velocity
DB resistor
dc bus
415
417
416
414
321
0
5
1
Brake PulseWatts
{pulse watts @ 1sec}
Brake Watts
Exception Event2
(BrakeOL Trip)
BusReg/Brake Ref
{% of peak ac line}
Drive Cnfg
(Brake Enable)
pu Stator Current fdbk
Mtr I2T Calibrat
Mtr I2T Trp ThrH
Service Factor
Mtr I2T Curr Min
337
336
339
340
320
10
11
Exception Event1
(Mtr OL Trip)
(Mtr OL Pend)
338
Mtr I2T Spd Min
Inverter Overload IT
Heat sink and
Junction degree
Calculator
Inverter Over Load (IT)
0
1
2
3
4
5
6
7
313
345
343
344
346
Drive OL Status
OL OpnLP CurrLim
Heatsink Temp
Drive OL JnctTemp
(NTC Open)
(HS OverTemp)
OL ClsLp CurrLim
(NTC Shorted)
(IT Pending)
(IT Foldback)
(HS Pending)
(IT Trip)
(Jnc OverTemp)
(Inv OTmpTrip0
(Inv OL Pend)
(Inv OTmpPend)
(Inv OLTrip)
320
358
(Brake Extern)
13
14
16
15
308
X
2
1
2
3
4
5
6
B
A
D
C
F
E
H
G
I
14
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