D521-Manual_EN_Rev07 2017_05_26
Page 26 of 31
7.4
Function diagram and connections of D521
Terminal
Nos
measurement
and
processing
D/A-converter
and analog
output
D521
13
12
- mA
+
Analog output
20
S
e
n
so
r co
n
n
e
c
tio
n
* :
"m
V
" = h
igh
se
n
sitive,
"V
" = V
o
lt
-le
ve
l
fo
r co
n
n
e
ctio
n
t
o
s
e
n
so
rs s
e
e
f
o
llo
wi
n
g
p
a
g
e
s
Power supply
20 .. 265 V uc
15
18
14
16
Display and Keys
Input
section
Sensor supply +U
+12V / max. 60 mA
1 k
+8V
0V
1
2
screen connection
and to screen bar
dc ac
+ L1
- N
25
26
alarm SP3
alarm SP4
17
"mV"
– signal input *
+ to 2-lead sensor
Input reference
"V" signal input *
= internal zero
isolated from supply
Pulse output 1
high-level approx. 10V
reference =
terminal 18
19
1 k
3
- V
Pulse output 2 (max. 30V / 10 mA/20 kHz)
reference
21
22
Switching capability max 60Vdc/0.1A
Electronic outputs, shown in their
non-conducting state
8
7
6
alarm SP1
11
10
9
alarm SP2
Switch capability maximum 250V/2A/100W
Provide overload protection at inductive
loads
Contacts shown in their de-energized
position
23
24
5
4
high = Starter active (12- 24 V)
Reference to starter signal