Ascon Tecnologic - KM1E/KR1E - Wine - ENGINEERING MANUAL -
PAG. 3
3.3.6 mA Input
0/4... 20 mA input wiring for passive transmitter
using the auxiliary pws
+
_
4...20 mA
Passive
transmitter
4
1
Input impedance:
< 53
Ω
.
Internal auxiliary PWS:
12 VDC (±10%), 20 mA max..
0/4... 20 mA input wiring for passive transmitter
using an external pws
+
_
+
_
1
2
0/4...20 mA
Passive
transmitter
_
External
PWS
+
0/4... 20 mA input wiring for active transmitter
0/4...20 mA
Active
transmitter
+
_
+
_
1
2
3.3.7 Logic Inputs
Safety notes:
–
Do not run logic input wiring together with power cables;
–
The instrument needs 150 ms to recognize a contact
status variation;
–
Logic inputs are
NOT
isolated by the measuring input.
A double or reinforced isolation between logic inputs and
power line must be assured by the external elements.
Logic input driven by dry contact
Digital
Input 1
Digital
Input 2
4
15
16
KM1E
Digital
input 1
Digital
input 2
5
6
11
4
KR1E
Maximum contact resistance:
100
Ω
.
Contact rating:
DI1 = 10 V, 6 mA;
DI2 = 12 V, 30 mA.
Logic inputs driven by 24 VDC
+
-
Digital
Input 2
4
15
16
Digital
Input 1
KM1E
+
-
5
6
11
4
Digital
input 2
Digital
input 1
KR1E
Logic status 1:
6... 24 VDC;
Logic status 0:
0... 3 VDC.
3.4 Outputs
Safety notes:
–
To avoid electrical shocks, connect power line at last.
–
For supply connections use No. 16 AWG or larger wires
rated for at least 75°C.
–
Use copper conductors only.
–
SSR outputs are not isolated. A reinforced isolation must
be assured by the external solid state relays.
–
For SSR, mA and V outputs if the line length is longer than
30 m use a shielded wire.
D
D
Before connecting the output actuators
,
we recommend to configure the parameters to suit
your application (e.g.: input type, Control strategy,
alarms, etc.).
3.4.1 Output 1 (OP1)
Relay Output
C
NO
7
8
KM1E
23 24
22
NC
C
NO
KR1E
Contact rating:
• 4 A /250 V cos
j
=1
• 2 A /250 V cos
j
=0.4
Operation:
1 x 10
5
SSR Output
SSR
+
-
7
8
KM1E
SSR
+
-
24
22
KR1E
Logic level 0:
Vout < 0.5 VDC;
Logic level 1:
12 V ±20%, 15 mA max..
