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2.5 SERIAL INTERFACE
D -
D +
D -
D +
D -
D +
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.
2.6 POwER SuPPLy
Power Supply
Supply Voltage: • 24 VAC/DC (±10%);
• 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. TEChNICAL ChARACTERISTICS
3.1 TEChNICAL SPECIFICATION
Case: Plastic, self-extinguishing degree: V-0 according to UL 94;
Front protection: IP 65 (when the optional panel gasket is
mounted) for indoor locations according to EN 60070-1;
Terminals protection: IP 20 according to EN 60070-1;
Installation: Panel mounting;
Terminal block: 16 M3 screw terminals for cables of
0.25... 2.5 mm
(AWG22... AWG14) with connection diagram;
2
Dimensions: 48 x 96, depth 75.9 mm, (1.77 x 3.78 x 2.99 in.)
Panel cutout: 45
x 89
(+0.6)
weight: 160 g max..
Ascon Tecnologic - KX Series - ENGINEERING MANUAL -Vr.4.0 PAG. 4
RS-485
D -
D +
16
Line
Neutral
15
mm [1.78
x 3.5
(+0.6)
(+0.023)
Power supply:• 24 VAC/DC (±10% of the nominal value);
8
Power consumption: 5 VA max.;
Insulation voltage: 2300 V rms according to EN 61010-1;
7
Display updating time: 500 ms;
Sampling time: 130 ms;
Resolution: 30000 counts;
Total Accuracy: ±0.5% F.S.V. ±1 digit @ 25°C of room
temperature;
Electromagnetic compatibility and safety requirements
Compliance: directive EMC 2004/108/CE (EN 61326-1),
directive LV 2006/95/CE (EN 61010-1);
Installation category: II;
Pollution category: 2;
Temperature drift: It is part of the global accuracy;
Operating temperature: 0... 50°C (32... 122°F);
Storage temperature: -30... +70°C (-22... +158°F);
humidity: 20... 85% RH, not condensing.
3.2 hOw TO ORDER
Model
KX1 - = Controller
KX1T = Controller+ timer
KX3 - = Controller
KX3T = Controller+ timer
KX3P = Controller + timer + programmer
Power supply
H = 100... 240 VAC
L = 24 VAC/DC
Analoue input + Digital Input DI1 (standard)
C = J, K, R, S, T, PT100, PT 1000 (2 wires), mA, mV, V
E = J, K, R, S, T, NTC, PTC, mA, mV, V
Note: For servomotor drive, both Output 2 and Output 3
in.]
(+0.023)
codes must be selected as "M".
• 100... 240 VAC (-15... +10% of the nominal
value);
Output 1
I = 0/4... 20 mA, 0/2... 10 V (KX3 only)
R = Relay SPST 4 A (resistive load)
O = VDC for SSR
Output 2
- = Not available
R = Relay SPST 2 A (resistive load)
O = VDC for SSR
M = Relay SPST 2 A (servomotor drive KX3 only)(note)
Output 3
- = Not available
R = Relay SPST 2 A (resistive load)
O = VDC for SSR
M = Relay SPST 2 A (servomotor drive KX3 only)(note)
Input/Output 4
D = Output 4 (VDC for SSR)/Pow. Supply/Dig. Input DI2
Serial Communications
- = TTL Modbus
S = RS485 Modbus + TTL Modbus
Connection type
- = Standard (screw terminals not removable)
E = Removable screw terminals
M = Removable spring terminals
N = Removable terminals (the fixed part only)
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