Unitronics Samba OPLC SM43-J-R20 Manuale utente
Unitronics 1
Samba™ OPLC™
SM43-J-R20
Installation Guide
The Unitronics SM43-J-R20 offers the following onboard I/Os:
12 Digital Inputs, configurable via wiring to include:
1 HSC/Shaft-encoder Input, 2 Analog inputs (only when the digital inputs are set to pnp)
8 Relay Outputs
General Description
The SAMBA SM43-J-R20 OPLC is an All-in-One Programmable Logic Controller that
Comprises a built-in 4.3" Color Touchscreen.
Communications
USB device programming port (Mini-B)
Optional: the user may install -
RS232/RS485 port (V100-17-RS4/V100-17-RS4X) or Ethernet (V100-17-ET2)
& CANbus (V100-17-CAN)
Standard
K
it Contents
Samba controller Mounting brackets (x2)
I/O connectors (x2) Rubber seal
Battery (installed)
Alert Symbols and General Restrictions
When any of the following symbols appear, read the associated information carefully.
Symbol Meaning Description
Danger The identified danger causes physical and property damage.
Warning The identified danger could cause physical and property damage.
Caution Caution Use caution.
Before using this product, the user must read and understand this document.
All examples and diagrams are intended to aid understanding, and do not guarantee operation.
Unitronics accepts no responsibility for actual use of this product based on these examples.
Please dispose of this product according to local and national standards and regulations.
Only qualified service personnel should open this device or carry out repairs.
Failure to comply with appropriate safety guidelines can cause severe injury or property damage.
Do not attempt to use this device with parameters that exceed permissible levels.
To avoid damaging the system, do not connect/disconnect the device when power is on.
Environmental Considerations
Do not install in areas with: excessive or conductive dust, corrosive or flammable gas,
moisture or rain, excessive heat, regular impact shocks or excessive vibration, in accordance with
the standards given in the product’s technical specification sheet.
Do not place in water or let water leak onto the unit.
Do not allow debris to fall inside the unit during installation.
Ventilation: 10mm space required between controller’s top/bottom edges & enclosure walls.
Install at maximum distance from high-voltage cables and power equipment.
SM43-J-R20 Installation Guide
2 Unitronics
Mou
nting
Dimensions
Panel Mounting
Before you begin, note that the mounting panel cannot be more than 5 mm thick.
1. Make a panel cut-out
measuring 122.5x91.5 mm
(4.82”x3.6”).
2.Slide the controller into the cut-
out, ensuring that the rubber
seal is in place.
3.Push the mounting brackets into
their slots on the sides of the
panel as shown in the figure to
the right.
4.Tighten the bracket’s screws
against the panel. Hold the
bracket securely against the unit
while tightening the screw.
5.When properly mounted, the
controller is squarely situated in
the panel cut-out as shown in
the figure to the right.
Samba™ OPLC™
Unitronics 3
Wiring
Do not touch live wires.
Install an external circuit breaker. Guard against short-circuiting in external wiring.
Use appropriate circuit protection devices.
Unused pins should not be connected. Ignoring this directive may damage the device.
Double-check all wiring before turning on the power supply.
Caution
To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·cm).
Do not use tin, solder, or any substance on stripped wire that might cause the wire
strand to break.
Install at maximum distance from high-voltage cables and power equipment.
Wiring Procedure
Use crimp terminals for wiring; use 3.31 mm ² –0.13 mm² wire (12-16 AWG):
1.Strip the wire to a length of 7±0.5mm (0.270–0.300“).
2.Unscrew the terminal to its widest position before inserting a wire.
3.Insert the wire completely into the terminal to ensure a proper connection.
4.Tighten enough to keep the wire from pulling free.
Input or output cables should not be run through the same multi-core cable or share the same wire.
Allow for voltage drop and noise interference with I/O lines used over an extended distance.
Use wire that is properly sized for the load.
The controller and I/O signals must be connected to the same 0V signal.
I/Os
This model comprises a total of 12 inputs and 8 relays. Input functionality can be adapted as follows:
1.All 12 inputs may be used as digital inputs. They may be wired in a group via a single jumper
as either npn or pnp.
In addition, according to jumper settings and appropriate wiring:
- Inputs 5 and 6 can function as either digital or analog inputs.
•If the digital inputs function as npn, analog option is not available.
- Input 0 can function as a high-speed counter, as part of a shaft-encoder, or as a normal
digital input.
- Input 1 can function as either a counter reset, normal digital input, or as part of a
shaft-encoder.
- If input 0 is set as a high-speed counter (without reset), input 1 can function
as a normal digital input.
SM43-J-R20 Installation Guide
4 Unitronics
Input and Output Jumper Settings
The tables below show how to set a specific jumper to change input functionality. To access the I/O
jumpers, you must open the controller according to the instructions beginning on page 7.
Incompatible jumper settings and wiring connections may seriously damage the controller.
Digital Inputs 0-11: Set Type
Set to JP12 (all Inputs)
npn (sink) A
pnp (source)* B
Input 5: Set Type - Digital or Analog #1
Set to JP4 JP10
Digital* A A
Voltage B A
Current B B
Input 6: Set Type - Digital or Analog #0
Set to JP8 JP9
Digital* A A
Voltage B A
Current B B
*Default settings
I/O Wiring
] npn Input Wiring
Input wiring, npn (sink) HSC input wiring, npn (sink)
pnp Input Wiring
Input wiring, pnp (source) HSC input wiring, pnp (source)
Samba™ OPLC™
Unitronics 5
Shaft-encoder
Analog Input W
iring
Analog input wiring, current (2/3 wire) Analog input wiring, current/voltage (4-wire)
Shields should be connected at the signal’s source.
The 0V signal of the analog input must be connected to the controller’s 0V.
Relay Outputs
Increasing Contact Life Span
To increase the life span of the
relay output contacts and protect
the device from potential damage
by reverse EMF, connect:
A clamping diode in parallel with each
inductive DC load
An RC snubber circuit in parallel with
each inductive AC load
SM43-J-R20 Installation Guide
6 Unitronics
Power Supply
The controller requires an external 24VDC power supply.
1. The power supply must include double insulation. Outputs must be rated as
SELV/PELV/Class 2/Limited Power.
2. Use separate wires to connect the functional
earth line (pin 3) and the 0V line (pin 2) to the
system earth ground.
3. Install an external circuit breaker. Guard
against short-circuiting in external wiring.
4. Double-check all wiring before turning
on the power supply.
5. Do not connect either the ‘Neutral’ or ‘Line’
signal of the 110/220VAC to device’s 0V pin.
6. In the event of voltage fluctuations or non-
conformity to voltage power supply
specifications, connect the device to
a regulated power supply.
Earthing the OPLC
To maximize system performance, avoid electromagnetic interference by:
Mounting the controller on a metal panel.
Connect each common and ground connection directly to the earth ground of your system.
For ground wiring use the shortest and thickest possible wire.
Communication Port
This series comprises a USB port and a CANbus port
Turn off power before making communications connections.
Caution
Always use the appropriate port adapters.
The USB port is not isolated. Make sure that the PC and the controller are grounded to
same potential.
The USB port may be used for programming, OS download, and PC access.
Samba™ OPLC™
Unitronics 7
Opening the Controller
Before performing these actions, touch a grounded object to discharge any electrostatic charge.
Avoid touching the PCB board directly. Hold the PCB board by its connectors.
1.Turn off the power supply, disconnect, and dismount the controller.
2.The back cover of the controller comprises 4 screws, located in the corners. Remove the
screws, and pull off the back cover.
Changing I/O Settings
1.The I/O board of the controller is now exposed, enabling you to change
I/O settings according to the jumpers shown on page 4.
Closing the Controller
1.Replace the back cover of the controller and fasten the corner screws.
Note that you must replace the back cover securely before powering up the controller.
SM43-J-R20 Installation Guide
8 Unitronics
The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole
discretion, and without notice, to discontinue or change the features, designs, materials and other specifications of its products, and to either permanently or
temporarily withdraw any of the forgoing from the market.
All information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to any implied warranties of
merchantability, fitness for a particular purpose, or non infringement. Unitronics assumes no responsibility for errors or omissions in the information presented in
this document. In no event shall Unitronics be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever arising
out of or in connection with the use or performance of this information.
The tradenames, trademarks, logos and service marks presented in this document, including their design, are the property of Unitronics (1989) (R"G) Ltd. or other
third parties and you are not permitted to use them without the prior written consent of Unitronics or such third party as may own them
DOC17009-A9 09/14
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