Impulse and contact centralisers

LM4I-4O-M

LM4I-4O-M, Impulse centraliser

Code: M31563.

  • Protocol: Modbus/RTU
  • Módules: 4
  • Communications: RS-485
  • Nº relays: 4
  • Digital inputs: 4

INFORMATION

Description

The LM4 is an digital and/or analogue signals centralizer (depending type).
The unit includes an RS- 485 communications bus with a Modbus/ RTU protocol, which allows real time control by communications. The unit is compatible with PowerStudio and PowerStudio SCADA control software.

Other features of LM4A-2IO-M:

  • Telemanagement of the 2 digital outputs
  • Supervision of the 2 digital inputs
  • Monitoring of the 4 analogue inputs

Applications

Reading of any pulse-emitting meter (up to 4 devices). These parameters are useful for generating bills or for specifying a price/unit cost

  • The outputs available on the device can control contacts (gas, water, steam, etc.), and sound and/or light devices to provide protection or alarms by using an internal relay.
  • Detection of logical states for electrical switching or alarms that can control relays through software or modbus communications.

SPECIFICATIONS

AC power supply
Nominal voltage
85…265 Vca / 120 … 374 Vcc (+/- 15%)
Consumption
4,6 VA ac / 2,5 W
Installation category
CAT III 300 / 520 Vac
Frequency
47 … 63 Hz
Mechanical characteristics
Size (mm) width x height x depth
71 x 93 x 58 (mm)
Envelope
Plastic UL 94 - V0 self-extinguishing
Cable gauge at power supply terminals
2,5 mm2 (min.)
Fastening
DIN rail
Weight (kg)
0,141
Environmental characteristics
Protection class
IP 31 (Front), IP 20 (unmounted)
Relative humidity (without condensation)
5…95%
Working temperature
-10 … +50 ºC
Electrical characteristics
Insulation voltage, circuit
2,5 kV, 50 Hz durante 1 min
Communications
Data bits
8
Stop bits (ModBus)
1
Connector
RS-485
Parity
non
Protocol
Modbus RTU
Speed
9600/19200
Connection mechanism
Ethernet 10BaseT / 100BaseTX autodetectable
Digital inputs
Quantity
4
Type
Free of optoisolated voltage
Minimum signal width
10 ms
Maximum short-circuit current
50 mA
Digital relay outputs
Nominal current
5 A~ / 250 V~ (with resistive load)
Type
Relay
Nominal voltage
250 V ~
Electrical life
3 x 104 (250 Vca / 5 A)
Standards
Standards
IEC 60664, VDE 0110, UL 94, EN-61010-1, EN 55011, EN 61000-4-3, EN 61000-4-11, EN 61000-6-4, EN 61000-4-2, EN 61000-6-2, EN 61000-6-1, EN 61000-6-3, EN 61000-4-5
Certifications
CE, UL, VDE
Electrical safety, Maximum height (m)
2000
Electrical safety, Installation category
CAT III 300V / 520V, IEC 61010
Electrical safety
Insulation
Double-insulated electric shock protection class II (IEC 61010-1)

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

Technical guide
Dimensions
Datasheet

ACCESORIES