RAS 74.40 - Page 205

Us'*skru
lndustrie
Elektronik
GmbH
Only suppliers
with
o dc voltoge
dependent
on
the
directlon
con be
employed os octuol
speed
volue suppliers
for the 4Q
operotion,
The best regulotion
results
ore ochieved
wiih
dc tochometers, Wlth the
I
a
operotion
dc
tochometers
os
well
os 3-phose current tochometers
with rectificotion
con be
used.
The
moximum
suitoble
iochometer
voltoge
is +/-
200
Volt,
Using
olternoting
current tochometers
with o
rectifier, on
odditio-
nol smoothing
copocitor of
0,47
mF
ist to
be set
up
of the
tochometer input ond the
monitorig of the
tochometer hcs
to
be
switched
off,
lnput
'
Xl:8b
=
tochometer
(GND)
lnput Xl:9
=
tochometer
(signol)
0a
-
Jumper
57, 512
plugged,
With
on
ormoture voltoge regulotion
with the lxR
compensotion the ormoture
volioge UA
is con-
nected
to the tochometer
input
Xl:8b
ond
Xl:9,
Pleose
pqy
ottention
thot the
jumpers
ore os fol-
lows : OQ-bridges 57 und
S12 open
,
jumpers
Sl,Sl0
plugged
ond SWl6
in
position
l
-2.
The input
is
set for on
mqximum ormoture
voltoge
X1' 8b
Xl,
9
GND
+/-
The tochometer
input
Xl:9
must hove
on
opposi-
tionol
polorlty
to the
nominol
volue input X1:6.
The
tqchometer
voltoge is
odjusted
with the binory swiich
59
(See
chopter "Settings").
With the
jumper
Sll
o
smoothing copocitor
(0,1 pF
)
con
be con-
nected
":
'
Xt: 8b Xl' 9
t-fi:
Ank".sponnunO
of
.l80
Volt,
With
ony
higher voltoge, externol
resistors
must be ottoched,
The
volues
for
RAI ond RA2
ore:
27OV
=
200kQ
440V
=
47OkQ
550V
=
6B0kQ
The leods must be
protected
wifh O,lA fuses
directly of
the
po-
wer
pick-up
(toke-off).
The
leokoge current
versus
the
protective
eorth is <l mA.
For the mounting
of
the
externol resistors
ond
fuses, on odditionol
boord, EXZU-UA1, is ovoiloble,
Potentiol-free ormoture
volotge control
by meons of
o
potentlql
seporoting
omplifier
(OTV)
con
be connected
like the tochome-
ter control
qnd
the rotory
switch 59 set onto
position
F,
8.4.
ACTUAL
SPEED
VALUE
8.4.1.
ACTUAL
TACHOM ETER
VALUE
8.4.2.
ACTUAL
ARMATURE
VOLTAGE
VALUE