Ascon Tecnologic - KX6 - ENGINEERING MANUAL -
PAG. 4
Voltage Analogue Output
V
-
5
6
+
Voltahge output:
0/2... 10 V, galvanically isolated.
Minimum Load Impedance:
500
Ω
.
2.5.3 Alarm 1 and Alarm 2 output
C
AI2
AI1
9
10
8
Load 2
Load 1
VAC
Contact rating:
• 2 A /250 V cos
j
= 1;
• 1 A /250 V cos
j
= 0.4.
Operation:
1 x 10
5
.
2.6 Serial Interface
RS-485
D -
D +
GND
17
18
16
D -
D +
GND
D -
D +
GND
D -
D +
GND
Interface type:
Isolated (50 V) RS-485;
Voltage levels:
According to EIA standard;
Protocol type:
MODBUS RTU;
Byte format:
8 bit with no parity;
Stop bit:
1 (one);
Baud rate:
Programmable between 1200... 38400 baud;
Address:
Programmable between 1... 255.
Notes: 1.
RS-485 interface allows to connect up to 30
devices with one remote master unit.
2.
The cable length must not exceed 1.5 km at
9600 baud.
2.7 Power Supply
Power
Supply
11
12
Supply Voltage:
100... 240 VAC (-15... +10%).
Notes: 1.
Before connecting the instrument to the power
line, make sure that line voltage is equal to the
voltage shown on the identification label;
2.
The polarity of the power supply has no importance;
3.
The power supply input is NOT fuse protected.
Please, provide a T type 1A, 250 V fuse externally.
4.
When the instrument is powered by the A01 key,
the outputs are NOT supplied and the instrument
can show the “ouLd” (Out 4 Overload) indication.
3 PANEL DESCRIPTION
Process Value
(in eng. units)
Autotune
in progress
(flashing)
Programmable
display
(usually shows
the Set Point)
Output
LEDs
Manual
mode
Alarm
active
Eng. Unit
(°C/°F)
Potentio-
meter (*)
Digital
inputs ON
Valve
Open/Close
Valve position
(measured or
theoretical)
*
Lit when the instrument is using the potentiometer;
flashes when a potentiomter malfunction is detected.
