unitronics V120-22-UN2 HMI Display unit User Guide
- June 9, 2024
- UNITRONICS
Table of Contents
V120-22-UN2 HMI Display unit
Vision V120TM , M91TM PLC
User Guide
V120-22-UN2 M91-2-UN2
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.
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.
1
Mounting
Note that figures are for illustrative purposes only. Dimensions
Installation Guide
Model
V120
Cut-out
92×92 mm (3.622″x3.622″)
View area
57.5×30.5mm (2.26″x1.2″)
M91
92×92 mm (3.622″x3.622″)
62×15.7mm (2.44″x0.61″)
Panel Mounting
Before you begin, note that the mounting panel cannot be more than 5 mm thick.
- 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.
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User Guide
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.
Caution
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 orLine’ 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.
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).
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1. Strip the wire to a length of 7±0.5mm (0.2700.300″). 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.
Installation Guide
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, V12022-RA22, V120-22-T1, V120-22-T2C, V120-22-T38, V120-22-UA2,
V120-22-UN2, M91-2-FL1, M91-2PZ1, 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-T4T1,
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
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User Guide
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 Nonhazardous 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.
UL des zones ordinaires:
Pour respecter la norme UL des zones ordinaires, monter l’appareil sur une
surface plane de type de protection 1 ou 4X
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Installation Guide
Certification UL des automates programmables, pour une utilisation en
environnement à risques, Class I, Division 2, Groups A, B, C et D.
Cette note fait référence à tous les produits Unitronics portant le symbole UL – produits qui ont été
certifiés pour une utilisation dans des endroits dangereux, Classe I, Division 2, Groupes A, B, C et D.
Attention Cet équipement est adapté pour une utilisation en Classe I, Division 2, Groupes A, B, C
et
D, ou dans Non-dangereux endroits seulement.
Le câblage des entrées/sorties doit être en accord avec les méthodes
de câblage selon la Classe I, Division 2 et en accord avec l’autorité compétente.
AVERTISSEMENT: Risque d’Explosion Le remplacement de certains composants rend
caduque la certification du produit selon la Classe I, Division 2.
AVERTISSEMENT – DANGER D’EXPLOSION – Ne connecter pas ou ne débranche pas
l’équipement sans avoir préalablement coupé l’alimentation électrique ou la zone est
reconnue pour être non dangereuse.
AVERTISSEMENT – L’exposition à certains produits chimiques peut dégrader les
propriétés des matériaux utilisés pour l’étanchéité dans les relais.
Cet équipement doit être installé utilisant des méthodes de câblage suivant la norme
Class I, Division 2 NEC et /ou CEC.
Montage de l’écran:
Pour les automates programmables qui peuvent aussi être monté sur l’écran,
pour pouvoir être au standard UL, l’écran doit être monté dans un coffret avec
une surface plane de type 1 ou de type 4X.
Certification de la résistance des sorties relais
Les produits énumérés ci-dessous contiennent des sorties relais: Automates
programmables, modèles : M91-2-R1, M91-2-R6C, M91-2-R6, M91-2-R2C Lorsque ces
produits spécifiques sont utilisés dans des endroits dangereux, ils supportent
un courant de 3A charge résistive. Lorsque ces produits spécifiques sont
utilisés dans un environnement non dangereux, ils sont évalués
à 5A res, comme indiqué dans les specifications du produit Plages de
temperatures.
Plages de température
Les Automates programmables, modèles: M91-2-R1, M91-2-R2C, M91-2-R6C. Dans un
environnement dangereux, ils peuvent être seulement utilisés dans une plage
de température allant de 0 et 40° C (32- 104ºF). Dans un environnement non
dangereux, ils peuvent être utilisés dans une plage de température allant
de 0 et 50º C (32- 122ºF).
Retrait / Remplacement de la batterie
Lorsqu’un produit a été installé avec une batterie, retirez et remplacez la
batterie seulement si l’alimentation est éteinte ou si l’environnement n’est
pas dangereux. Veuillez noter qu’il est recommandé de sauvegarder toutes les
données conservées dans la RAM, afin d’éviter de perdre des données lors du
changement de la batterie lorsque l’alimentation est coupée. Les informations
sur la date et l’heure devront également être réinitialisées après la
procedure.
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User Guide 7
Installation Guide 8
User Guide 9
Installation Guide 10
User Guide 11
Installation Guide 12
User Guide 13
Installation Guide 14
User Guide
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.
RS232
RS485
Controller Port
Pin #
Description
Pin #
Description
1*
DTR signal
1
A signal (+)
2
0V reference
2
(RS232 signal)
3
TXD signal
3
(RS232 signal)
Pin #1
4
RXD signal
4
(RS232 signal)
5
0V reference
5
(RS232 signal)
6*
DSR signal*
6
B signal (-)
*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.
15
Opening the controller
Installation Guide
1. Turn power off before opening the controller. 2. Locate the 4 slots on the
sides of the controller. 3. Using the blade of a flat-bladed screwdriver,
gently
pry off the back of the controller.
4. Gently remove the top PCB board: a. Use one hand to hold the top-most PCB
board by its top and bottom connectors. b. With the other hand, grasp the
controller, while keeping hold of the serial ports; this will keep the bottom
board from being removed together with the top board. c. Steadily pull the top
board off.
5. Locate the jumpers, and then change the jumper settings as required.
6. Gently replace the PCB board. Make certain that the pins fit correctly
into their matching receptacle. a. Do not force the board into place; doing so
may damage the controller.
7. Close the controller by snapping the plastic cover back in its place. If
the card is placed correctly, the cover will snap on easily.
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User Guide
M91: RS232/RS485 Jumper Settings
RS232/RS485 Jumper Setting
To use as Jumper 1 Jumper 2
RS232*
A
A
RS485
B
B
*Default factory setting.
RS485 Termination
Termination Jumper 3 Jumper 4
ON*
A
A
OFF
B
B
V120: RS232/RS485 Jumper Settings
Jumper Settings
Jumper
RS232*
RS485
COM 1
1
A
B
2
A
B
COM 2
5
A
B
6
A
B
*Default factory setting.
RS485 Termination
Jumper
ON*
OFF
3
A
B
4
A
B
7
A
B
8
A
B
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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
Installation Guide
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
UG_V120_M91-UN2.pdf 11/22
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References
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