unitronics V120-22-R6C Programmable Logic Controller User Guide

unitronics V120-22-R6C Programmable Logic Controller User Guide

General Description

The products listed above are micro-PLC+HMIs, rugged programmable logic controllers that comprise built-in operating panels.

Detailed Installation Guides containing the I/O wiring diagrams for these models, technical specifications, and additional documentation are located in the Technical Library in the Unitronics website: https://unitronicsplc.com /support-technical-library/

Alert Symbols and General Restrictions

When any of the following symbols appear, read the associated information carefully.

• 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.

Mounting

Note that figures are for illustrative purposes only.

Panel Mounting

Before you begin, note that the mounting panel cannot be more than 5 mm thick.

1. Make a panel cut-out of the appropriate size:
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 below.
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 accompanying figures.

DIN-rail Mounting

1. Snap the controller onto the DIN rail as shown in the figure to the right.

2. When properly mounted, the controller is squarely situated on the DIN-rail as shown in the figure to the right.

Wiring

• Do not touch live wires.
• This equipment is designed to operate only in SELV/PELV/Class 2/Limited Power environments.
• All power supplies in the system must include double insulation. Power supply outputs must be rated as SELV/PELV/Class 2/Limited Power.
• Do not connect either the ‘Neutral or ‘Line’ signal of the 110/220VAC to device’s 0V pin.
• All wiring activities should be performed while power is OFF.
• Use over-current protection, such as a fuse or circuit breaker, to avoid excessive currents into the power supply connection point.
• Unused points should not be connected (unless otherwise specified). 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: – Controllers offering a terminal block with pitch of 5mm: 0.5 N·m (5 kgf·cm). – Controllers offering a terminal block with pitch of 3.81mm f 0.2 N·m (2 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;

• Controllers offering a terminal block with pitch of 5mm: 26-12 AWG wire (0.13 mm2 –3.31 mm2).
• Controllers offering a terminal block with pitch of 3.81mm: 26-16 AWG wire (0.13 mm2 – 1.31 mm2).

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.

Wiring Guidelines

• Use separate wiring ducts for each of the following groups:
  o Group 1: Low voltage I/O and supply lines, communication lines.
  o Group 2: High voltage Lines, Low voltage noisy lines like motor driver outputs.
  Separate these groups by at least 10cm (4″). If this is not possible, cross the ducts at a 90˚angle.

• For proper system operation, all 0V points in the system should be connected to the system 0V supply rail.

• Product-specific documentation must be fully read and understood before performing any wiring. Allow for voltage drop and noise interference with input lines used over an extended distance. Use wire that is properly sized for the load.

Earthing the product

To maximize system performance, avoid electromagnetic interference as follows:

• Use a metal cabinet.
• Connect the 0V and functional ground points (if exist) directly to the earth ground of the system.
• Use the shortest, less than 1m (3.3 ft.) and thickest, 2.08mm² (14AWG) min, wires possible.

UL Compliance

The following section is relevant to Unitronics’ products that are listed with the UL.
The following models: V120-22-T1, V120-22-T2C, V120-22-UA2, V120-22-UN2, M91-2-R1, M91-2-R2C, M91-2-R6, M91-2-R6C, M91-2-T1, M91-2-T2C, M91-2-UA2, M91-2-UN2 are UL listed for Hazardous Locations.

The following models: V120-22-R1, V120-22-R2C, V120-22-R34, V120-22-R6, V120-22-R6C, V120-22-RA22, V120-22-T1, V120-22-T2C, V120-22-T38, V120-22-UA2, V120-22-UN2, M91-2-FL1, M91-2-PZ1, M91-2-R1, M91-2-R2, M91-2-R2C, M91-2-R34, M91-2-R6, M91-2-R6C, M91-2-RA22, M91-2-T1, M91-2-T2C, M91-2-T38, M91-2-TC2, M91-2-UA2, M91-2-UN2, M91-2-ZK, M91-T4-FL1, M91-T4-PZ1, M91-T4-R1, M91-T4-R2, M91-T4-R2C, M91-T4-R34, M91-T4-R6, M91-T4-R6C, M91-T4-RA22, M91-T4-T1, M91-T4-T2C, M91-T4-T38, M91-T4-TC2, M91-T4-UA2, M91-T4-UN2, M91-T4-ZK are UL listed for Ordinary Location.

For models from series M91, that include “T4” in the Model name, Suitable for mounting on the flat surface of Type 4X enclosure.
For examples: M91-T4-R6

UL Ordinary Location

In order to meet the UL ordinary location standard, panel-mount this device on the flat surface of Type 1 or 4 X enclosures

UL Ratings, Programmable Controllers for Use in Hazardous Locations, Class I, Division 2, Groups A, B, C and D.

These Release Notes relate to all Unitronics products that bear the UL symbols used to mark products that have been approved for use in hazardous locations, Class I, Division 2, Groups A, B, C and D.

Caution:

• This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D, or Non-hazardous locations only.
• Input and output wiring must be in accordance with Class I, Division 2 wiring methods and in accordance with the authority having jurisdiction.
• WARNING—Explosion Hazard—substitution of components may impair suitability for Class I, Division 2.
• WARNING – EXPLOSION HAZARD – Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
• WARNING – Exposure to some chemicals may degrade the sealing properties of material used in Relays.
• This equipment must be installed using wiring methods as required for Class I, Division 2 as per the NEC and/or CEC.

Panel-Mounting

For programmable controllers that can be mounted also on panel, in order to meet the UL Haz Loc standard, panel-mount this device on the flat surface of Type 1 or Type 4X enclosures.

Relay Output Resistance Ratings

The products listed below contain relay outputs:
Programmable controllers, Models: M91-2-R1, M91-2-R2C,M91-2-R6C, M91-2-R6

• When these specific products are used in hazardous locations, they are rated at 3A res.
• when these specific products are used in non-hazardous environmental conditions, they are rated at 5A res, as given in the product’s specifications.

Temperature Ranges

Programmable Logic Controllers, Models, M91-2-R1, M91-2-R2C, M91-2-R6C.

• When these specific products are used in hazardous locations, they may be used only within a temperature range of 0-40ºC (32- 104ºF).
• When these specific products are used in non-hazardous environmental conditions, they function within the range of 0-50ºC (32- 122ºF) given in the product’s specifications.

Removing / Replacing the battery

When a product has been installed with a battery, do not remove or replace the battery unless the power has been switched off, or the area is known to be non-hazardous.

Please note that it is recommended to back up all data retained in RAM, in order to avoid losing data when changing the battery while the power is switched off. Date and time information will also need to be reset after the procedure.

Communication Ports

Note that different controller models offer different serial and CANbus communication options. To see which options are relevant, check your controller’s technical specifications.

• Turn off power before making communications connections.

Caution

• Note that the serial ports are not isolated.
• Signals are related to the controller’s 0V; the same 0V is used by the power supply.
• Always use the appropriate port adapters.

Serial Communications

This series comprises 2 serial port can be set to either RS232 or RS485 according to jumper settings. By default, the ports are set to RS232.

Use RS232 to download programs from a PC, and to communicate with serial devices and applications, such as SCADA.

Use RS485 to create a multi-drop network containing up to 32 devices.

Caution

• The serial ports are not isolated. If the controller is used with a nonisolated external device, avoid potential voltage that exceeds ± 10V.

Pinouts
The pinouts below show the signals between the adapter and port.

*Standard programming cables do not provide connection points for pins 1 and 6.

RS232 to RS485: Changing Jumper Settings

• To access the jumpers, open the controller and then remove the module’s PCB board. Before you begin, turn off the power supply, disconnect and dismount the controller.
• When a port is adapted to RS485, Pin 1 (DTR) is used for signal A, and Pin 6 (DSR) signal is used for signal B.
• If a port is set to RS485, and flow signals DTR and DSR are not used, the port can also be used to communicate via RS232; with the appropriate cables and wiring.
• 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.

Opening the controller

M91: RS232/RS485 Jumper Settings

V120: RS232/RS485 Jumper Settings

CANbus
These controllers comprise a CANbus port. Use this to create a decentralized control network of up to 63 controllers, using either Unitronics’ proprietary CANbus protocol or CANopen.

The CANbus port is galvanically isolated.

CANbus Wiring
Use twisted-pair cable. DeviceNet® thick
shielded twisted pair cable is recommended.
Network terminators: These are supplied with the controller. Place terminators at each end of the CANbus network.
Resistance must be set to 1%, 1210, 1/4W.
Connect ground signal to the earth at only one point, near the power supply.
The network power supply need not be at the end of the network

CANbus Connector

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

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References

• Technical library- about PLC Controllers, HMI panels, automation & control

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