Inverter overlo a d it – Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Programming Manual User Manual

Page 197

Advertising
background image

Rockwell Automation Publication 20D-PM001C-EN-P - July 2013

197

Control Block Diagrams

Appendix C

inverter_ovrload_IT.eps

Mtr Over Lo

a

d (

I

2

T)

60

1.

0

p

u

_c

u

rrent

p

u

_c

u

rrent

2

.0 typ

right of c

u

rve

1

.025 typ

time (

s

ec

)

p

u

motor

velocity

DB re

s

is

tor

dc

bus

415

417

416

414

321

0

5

1

Br

a

ke P

u

ls

eW

a

tt

s

{p

u

ls

e w

a

tt

s

@

1

s

ec

}

Br

a

ke W

a

tt

s

Exception Event

2

(B

ra

keOL Trip

)

B

us

Reg

/Br

a

ke Ref

{% of

pe

a

k

a

c line

}

Br

a

ke/B

us

Cnfg

(B

ra

ke En

ab

le

)

p

u

S

ta

tor C

u

rrent fd

b

k

Mtr I

2

T C

a

lib

ra

t

Mtr I2

T Trp ThrH

Mtr OL F

a

ctor

Mtr I2

T C

u

rr Min

337

336

339

340

320

10

11

Exception Event

1

(Mtr OL Trip

)

(Mtr OL Pend

)

338

Mtr I

2

T

S

pd Min

Inverter Overlo

a

d IT

He

a

t

s

ink

a

nd

J

u

nction degree

C

a

lc

u

la

tor

Inverter Over Lo

a

d (

IT

)

0

1

2

3

4

5

6

7

NTC

Pwr EE D

a

ta

Iq Ref Limited

(s

ee torq

u

e

b

lock

)

313

345

343

344

346

Drive OL

S

ta

tus

OL OpnLP C

u

rrLim

He

a

ts

ink Temp

Drive OL JnctTemp

(NTC Open

)

(H

S

OverTemp

)

OL Cl

s

Lp C

u

rrLim

(NTC

S

horted

)

(IT Pending

)

(IT Fold

ba

ck

)

(H

S

Pending

)

(IT Trip

)

(Jnc OverTemp

)

(Inv OTmpTrip

0

(Inv OL Pend

)

(Inv OTmpPend

)

(Inv OLTrip

)

320

355

(B

ra

ke Extern

)

Exception Event

1

D

u

ty Cycle

B

us

Volt

a

ge

PWM Freq

u

ency

Power Device

Ch

a

ra

cteri

s

tic

s

13

14

16

15

308

X

2

Motor NP FLA

O

u

tp

u

t C

u

rrent

1

2

3

4

5

6

B

A

D

C

F

E

H

G

I

Te

s

tPoint

s

P

347 Drive

OL

TP

S

el

P

348

Drive OL TP D

a

ta

No

te

: S

et this par

ame

te

r t

o the minimum

val

ue

fo

r t

he

mot

or ov

er

lo

ad t

rip

to

va

ry

in

ti

m

e at low

sp

ee

ds.

Se

e Mt

r I

2T

Sp

d

M

in on

page

69

fo

r mor

e informa

tion.

Advertising