RAS 74.40 - Page 204

ANALOGUE REGUI-ATION ELECTRONICS
REG,3
8.3.1.
CURRENT
LIMITS
USING
INTERNAL
VOLTAGE
8.3.2.
CURRENT LIMIT
FROM
SPS
OR
CNC
8.3.3.
CURRENT
LIMIT BY
MEANS
OF
CURRENT
LOOP
-10-
UNITEK
lndustrie
Elektronik GmbH GrtiningerstraBe I
D-71364
Winnenden
/
Stungart-Germany
Output
lnput
lnput
Output
X2:l0l
X2:102
X2:.l03
X2:104
=
+ l0 Volt
=curfeflt
limif
ll,
0,,+ l0 V
=
culrent limit 12, 0,,+ l0 V
-device
ground
GND
X?,
I01
lOe
103 104
I
Jumper
Sl3
ond
Sl4 ore
noi
plugged,
The
current llmit l1
is odjusted with the
potentiometer
P-lso1r
ond
the current limit
12 with the
potentiometer
P-lsolz.
Using
1Q-operotions
only
the current limit 12
(input
X2:103) is octive,
lnput X2:102
=
cUII€flt limit ll, 0,,+ 16
y
x?'
r0r
r02
lnput
X2:103
=
curreflt
limit 12, 0,,+
lO
V
T
Output X2:lO4
=
device
ground
GND
0...
*,0,
I
lnput
resistonce
50Q
Stro'rsrenze
11
D-t
'
t
soLta
104103
GND
Jumpers
Sl3 ond
Sl4
ore
not
plugged,
The current limits
ore
controlled by the
volioges
qt
X2:102 ond X2:.l03.
With on externol
control current of 0,,20
mA for
the current
limit, the
externol
lood
resistonces
of 500 Q must be connected,
Jumpers Sl3 ond Sl4 ore not
plugged
0...
+l0V
Strongrenze I2
't
X?,
102 103 104
500 fi
GND
I
0,.,20nA
Strongrenze
I
1
I
0.,.20nA
Stnomgnenze I
a
-r
p-t
'
'sotu
500n