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MAXVU
Users Manual
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Operating Manual
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Specifications
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Operating Manual
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Table of contents
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CAL Controls MAXVU Operating Manual

59633-4 MaxVU Rail Full Manual
59633-MaxVU Rail Full Manual (EN) - Page 1 of 127
Contents
Warning Symbols Used through the Manual: .............................................................................................. 9
Warranty & Returns Statement .................................................................................................................... 10
Installation ....................................................................................................................................................... 11
Guidance Notes for Installation ............................................................................................................... 11
Mounting & Unmounting .......................................................................................................................... 12
Optional bus connector ........................................................................................................................ 12
Mounting & Unmounting from DIN Rail ............................................................................................... 12
Electrical Installation...................................................................................................................................... 13
Inductive coils ......................................................................................................................................... 14
Contacts .................................................................................................................................................. 14
MaxVU Rail Product Labels .......................................................................................................................... 15
MaxVU Rail Terminal Wiring .......................................................................................................................... 17
Temperature Sensor Identification & Connection .................................................................................... 18
Sensor Placement (Thermocouple or RTD) ......................................................................................... 18
Thermocouples ....................................................................................................................................... 19
59633-MaxVU Rail Full Manual (EN) - Page 2 of 127
3 Wire RTD ................................................................................................................................................ 19
2 Wire RTD ................................................................................................................................................ 19
4 Wire RTD ................................................................................................................................................ 19
Linear Output Details ................................................................................................................................. 20
Powering Up ................................................................................................................................................... 21
First Power Up or Factory Default ................................................................................................................ 21
Auto-Tuning from Setup menu ..................................................................................................................... 22
MaxVU Rail Model Range ............................................................................................................................ 22
Front Panel ...................................................................................................................................................... 23
General Navigation & Editing ...................................................................................................................... 23
Navigating to Setup Mode or Advanced Configuration from Operator Mode .............................. 24
Time Display .................................................................................................................................................... 25
Use of the Controller for Non-Temperature Applications ........................................................................ 25
MaxVU Rail use as a Transmitter .................................................................................................................. 25
Operator Mode & Screens on Standard & Extrusion models .................................................................. 26
Warnings & Messages ................................................................................................................................... 28
Pop-Up Alert List ...................................................................................................................................... 28
Setup mode parameters for Standard & Extrusion models ..................................................................... 32
Advanced Configuration mode for Standard & Extrusion models ........................................................ 35
User menu ................................................................................................................................................... 36
59633-MaxVU Rail Full Manual (EN) - Page 3 of 127
Input menu ................................................................................................................................................. 37
Outputs menu ............................................................................................................................................ 38
Control menu for Extrusion model only ................................................................................................... 41
Setpoint menu for Standard model only ................................................................................................ 43
Operator Screens menu ........................................................................................................................... 46
User Calibration Menu .................................................................................................................................. 48
Base Input Calibration .................................................................................................................................. 50
Calibration Input States ......................................................................................................................... 53
Calibration Progress ............................................................................................................................... 53
Automatic Tuning .......................................................................................................................................... 54
Running the Pre-Tune ................................................................................................................................ 54
Running Tune at SP .................................................................................................................................... 55
Tuning at SP for Heat and Cool ............................................................................................................ 56
59633-MaxVU Rail Full Manual (EN) - Page 4 of 127
Digital Input Operation ................................................................................................................................. 56
Timer Feature .................................................................................................................................................. 59
Delay, Ramp and Timer diagram ............................................................................................................ 60
Extrusion Model Only Features ..................................................................................................................... 61
Soft Start function ....................................................................................................................................... 64
Extrusion Only Parameters in the Control menu .................................................................................... 65
Limiter Models ................................................................................................................................................ 66
Limiter Modbus Communications ............................................................................................................ 66
Limiter Digital Input .................................................................................................................................... 67
Limiter Operator Mode & Screens ............................................................................................................... 68
Limiter Clearing Latched Outputs ........................................................................................................ 68
Limiter Start-up Latch ............................................................................................................................. 69
Limiter Output 3 – Linear, Relay or SSR drive .......................................................................................... 69
Limiter Setup mode parameters .................................................................................................................. 70
Limiter Advanced Configuration parameters ........................................................................................... 73
Limiter - Outputs Menu .............................................................................................................................. 75
Limiter - Exiting from Advanced Configuration mode.......................................................................... 78
MaxVU / MaxVU Rail Configurator PC Software ....................................................................................... 79
Serial Communications ................................................................................................................................. 83
59633-MaxVU Rail Full Manual (EN) - Page 5 of 127
Link Layer ..................................................................................................................................................... 84
Function Descriptions ............................................................................................................................. 85
Modbus Addresses ........................................................................................................................................ 87
Standard and Extrusion Modbus Addresses ........................................................................................... 88
Specification for MaxVU Rail ...................................................................................................................... 101
MaxVU Rail Product Coding ...................................................................................................................... 104
FAQs .............................................................................................................................................................. 106
My MaxVU Rail is giving an incorrect reading, what should I do? .................................................... 107
What is an Annunciator? ........................................................................................................................ 107
What does Exceed Condition mean? .................................................................................................. 108
What is a Retransmit Output? ................................................................................................................ 108
Glossary ......................................................................................................................................................... 109
Actual Setpoint ........................................................................................................................................ 109
Automatic Reset (Integral time) ............................................................................................................ 112
Auto-Tune .................................................................................................................................................. 112
59633-MaxVU Rail Full Manual (EN) - Page 6 of 127
Band Alarm Value.................................................................................................................................... 112
Bumpless Transfer ..................................................................................................................................... 113
Calibration - 2 Point (High/Low PV Offset) ........................................................................................... 113
Control Type ............................................................................................................................................. 113
Controller................................................................................................................................................... 114
Cool Proportional Band .......................................................................................................................... 114
Cycle Time ................................................................................................................................................ 114
Deadband ................................................................................................................................................ 114
Derivative .................................................................................................................................................. 114
Heat or Cool Output Power Limits ......................................................................................................... 114
Heat Proportional Band .......................................................................................................................... 115
Input Range and Input Span .................................................................................................................. 115
Limit Controller or Limiter ......................................................................................................................... 115
Manual Mode ........................................................................................................................................... 116
Overlap/Deadband ................................................................................................................................ 118
PV High Alarm Value ............................................................................................................................... 119
Process Variable (PV) .............................................................................................................................. 120
59633-MaxVU Rail Full Manual (EN) - Page 7 of 127
Reverse Acting ......................................................................................................................................... 120
Serial Communications Option .............................................................................................................. 121
Setpoint ..................................................................................................................................................... 121
Ramp Rate ................................................................................................................................................ 122
Solenoid Valve ......................................................................................................................................... 122
Time Proportioning Control ..................................................................................................................... 123
Tuning PID .................................................................................................................................................. 123
Running Tune at Setpoint from Automatic Control. ............................................................................ 124
Contact Details ............................................................................................................................................ 127
59633-MaxVU Rail Full Manual (EN) - Page 8 of 127
This manual supplements the Concise Product manual supplied with the instrument. Information in this manual is subject to change without notice.
Copyright © West Control Solutions, all rights reserved. No part of this publication may be reproduced, transmitted, transcribed or stored in a retrieval system, or translated into any language in any form by any means without the written permission of West Control Solutions. Copies of this manual are available in electronic format on the West Control Solutions web sites www.west-cs.com, www.west-cs.co.uk, www.west-cs.fr & www.west-cs.de.

Warning Symbols Used through the Manual:

Risk of electric shock.
The international hazard symbol is used to alert user to hazardous voltages.
Risk of Electrostatic Discharge (ESD) to components. Precautions must be
taken to reduce ESD which can damage some electronic components.
Caution, care must be taken, refer to the manual for further instructions.
Equipment is protected throughout by double insulation, when installed
properly.
It is important to read this manual before installing or commissioning the unit.
Important information or tip.
Both alternating or direct current could be present.
59633-MaxVU Rail Full Manual (EN) - Page 9 of 127

Warranty & Returns Statement

This information is to be used with the published Terms & Conditions. These products are sold by West Control Solutions under the warranties set forth in the following paragraphs. Such warranties are extended only with respect to a purchase of these products, as new merchandise, directly from West Control Solutions or from a West Control Solutions distributor, representative or reseller and are extended only to the first buyer thereof who purchases them other than for the purpose of resale.

Warranty

These products are warranted to be free from functional defects in material and workmanship for three years from the time the products leave West Control Solutions factory and to conform at that time to the specifications set forth in the relevant West Control Solutions instruction manuals sheet or sheets.
THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES, WHICH EXTEND BEYOND THE WARRANTIES HEREIN AND ABOVE SET FORTH. NO WARRANTY IS MADE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PRODUCTS.

Limitations

West Control Solutions shall not be liable for any incidental damages, consequential damages, special damages, or any other damages, costs or expenses excepting only the cost or expense of repair or replacement as described above. Products must be installed and maintained in accordance with West Control Solutions instructions. There is no warranty against damage to the product resulting from corrosion. Users are responsible for the suitability of the products to their application. For a valid warranty claim, the product must be returned carriage paid to the supplier within the warranty period. The product must be properly packaged to avoid damage from electro-static discharge (ESD) or other forms of harm during transit.
Where there is any uncertainty in information, although we strive to have accurate translations, the UK English version will be the most accurate and up to date versions of any manuals.
59633-MaxVU Rail Full Manual (EN) - Page 10 of 127
WARNING: This product can expose you to chemicals including
arsenic, which is known to the State of California to cause cancer. For more information go to
This equipment is protected throughout by double insulation, when installed properly. This type of installation does not need an earth connection, but it is vital for safety reasons, that the instr replaced if the instrument housing is broken.

Installation

www.P65Warnings.ca.gov

Guidance Notes for Installation

Installation should only be performed by technically competent personnel. It is the responsibility of the installing engineer to ensure that the configuration is safe. Local regulations regarding electrical installation & safety must be observed (e.g. US National Electrical Code (NEC) or Canadian Electrical Code.
• Standards compliance shall not be impaired when fitting into the final installation.
• Impairment of protection will occur if the product is used in a manner not specified by the manufacturer.
• Due to the low weight of this instrument there are no special lifting or carrying considerations.
• Ensure that supplementary insulation suitable for Installation Category II is achieved when fully installed.
• To avoid possible hazards, accessible conductive parts of the final installation should be protectively earthed in accordance with EN61010 for Class 1 equipment.
• Output wiring should be within a Protectively Earthed cabinet.
• Sensor sheaths should be bonded to protective earth or not be accessible.
• Live parts should not be accessible without the use of a tool.
• When fitted to the final installation, an IEC/CSA APPROVED disconnecting device should be used to disconnect both LINE and NEUTRAL conductors simultaneously.
• Do not position the equipment so that it is difficult to operate the disconnecting device.
• Ventilation slots must not be covered and adequate air circulation must be allowed.
• Use conductor sizes 30-12 AWG, minimum temp rating of cables to be 80°c.
It is strongly recommended that applications incorporate a high or low limit protective device or ‘limiter’, which will shut down the equipment at a pre-set process condition, to prevent possible damage to property or products.

Implications of Double Insulation

59633-MaxVU Rail Full Manual (EN) - Page 11 of 127
ument is
The optional bus connection should

Unpacking

Carefully remove the product from its packing. Please retain the packing for future use. A single sheet concise manual is also supplied in one or more languages. Examine the delivered items for damage or defects. If any are found, contact your supplier immediately.

Cleaning

Clean the front panel by wiping down with a dry cloth. Never allow water or any other substances to ingress into the instrument.

Mounting & Unmounting

This instrument is designed for indoor back of panel use.
Optional bus connector
be slid onto the DIN Rail before fitting the MaxVU Rail.
The connectors must be pushed together to share the bus
This bus connection links up the optional RS485 communications connections without extra wiring but does not supply power.
Mounting & Unmounting from DIN Rail
To prevent overheating, ensure the specified air-gaps are allowed, and that there is
adequate air flow inside the panel. Refer to environmental specifications.
59633-MaxVU Rail Full Manual (EN) - Page 12 of 127
The only wires that should run together are those of the same category.

Electrical Installation

Installation Considerations and Advice

Ignition transformers, arc welders, motor drives, mechanical contact relays and solenoids are examples of devices that generate electrical noise in typical industrial environments. The following guidelines MUST be followed to minimise their effects. If the instrument is being installed in existing equipment, the wiring in the area should be checked to ensure that good wiring practices have been followed.
Noise-generating devices such as those listed above should be mounted in a separate enclosure. If this is not possible, separate them from the instrument, by the largest distance possible. If possible, eliminate mechanical contact relays and replace with solid-state relays. If a mechanical relay cannot be replaced, a solid-state relay can be used to isolate the instrument. A separate isolation transformer to feed only the instrumentation should be considered. The transformer can isolate the instrument from noise found on the AC power input.

AC Power Wiring (100 to 240Vac versions)

In mains power versions, it is good practice to ensure that the ac neutral is at or near ground (earth) potential. A proper neutral will help ensure maximum performance from the instrument.

Wire Isolation

Four voltage levels of input and output wiring may be used with the unit:
• Analogue input (for example thermocouple, RTD, VDC, mVDC or mADC)
• Relays outputs
• SSR Driver outputs
• AC power
If any wires need to run parallel with any other lines, maintain a minimum space of 150mm between them.
If wires MUST cross each other, ensure they do so at 90 degrees to minimise interference.

Use of Shielded Cable

All analogue signals must use shielded cable. This will help eliminate electrical noise induction on the wires. Connection lead length must be kept as short as possible keeping the wires protected by the shielding. The shield should be grounded at one end only. The preferred grounding location is at the sensor, transmitter or transducer.
59633-MaxVU Rail Full Manual (EN) - Page 13 of 127

Noise Suppression at Source

Usually when good wiring practices are followed, no further noise protection is necessary. Sometimes in severe electrical environments, the amount of noise is so great that it must be suppressed at source. Many manufacturers of relays, contactors, etc. will supply 'surge suppressors' which mount on the noise source. For those devices that do not have surge suppressors supplied, Resistance-Capacitance (RC) networks and/or Metal Oxide Varistors (MOV) may be added.

Inductive coils

MOVs are recommended for transient suppression in inductive coils, connected in parallel and as close as possible to the coil. Additional protection may be provided by adding an RC network across the MOV.

Contacts

Arcing may occur across contacts when they open and close. This results in electrical noise as well as damage to the contacts. Connecting a properly sized RC network can eliminate this arcing.
For any circuits of up to 3 Amps, a combination of a 47 Ohm resistor and 0.1 microfarad capacitor (rated at 1000 Volts) is recommended. For circuits from 3 to 5 Amps, connect two of these in parallel. Always observe the current rating of the relays on the controller and ensure this is not exceeded.
59633-MaxVU Rail Full Manual (EN) - Page 14 of 127

MaxVU Rail Product Labels

The example product & wiring label below is for illustration only. Actual label information varies with the model code / hardware configuration purchased.
The product label shows the part number, production information and approvals. Model and Config codes make up the part number (see MaxVU Rail Product Coding section), followed by the unit serial number, country & date of manufacture, and Product Revision Level.
The wiring label shows the power requirements, connector positions and terminal number. This example is: TOP 1 & 2 Rear = RS485 Comms 3 & 3 Rear = Linear Out 3 5 & 6 Front = SSR Driver Out 2 7 & 8 Front = 100-240VAC power. BOTTOM 9 & 10 Rear = Digital Input 11, 12 Rear & 16 Front = Relay Out 1 13, 14 & 15 Front = Process Input
59633-MaxVU Rail Full Manual (EN) - Page 15 of 127
Non-
Isolated
No Isolation
Reinforced Isolation

Power Connection

To avoid damaging your instrument it is critical the power connection is made to the correct terminals.
Power is connected to pins 7 & 8. Top, rear connector on the right-hand side.
(front connector omitted from picture for clarity)
The green LED shows when power is correctly connected.
Not Applicable

MaxVU Rail Isolation Chart

Universal
PSU
Universal Input
Relay
SSR
Linear
RS485 Comms
Non-Isolated
Digital Input
PSU
Input
Relay SSR Linear
RS485
Com
ms
Isolated
Digital
Input
Isolated
Digital
Input
Configuration
Port
Digital Input
Configuration Port
59633-MaxVU Rail Full Manual (EN) - Page 16 of 127
Use cables with 80°C minimum temperature rating, conductor sizes 30-12 AWG.
1
RS485 A (Rx/Tx+)
2
RS485 B (Rx/Tx-)
L +
CONV-BA-00-00-00-MV.
1|2|3|4
Dedicated
5|6|7|8
13|14|15|16
9|10|11|12
Data A
Data B
Data A
Data B
Relay COM /
Relay NO /
+
Volt-free or TTL compatible
Relay COM / SSR-
Relay NO / SSR+
TC / RTD / Linear +
TC / RTD / Linear -
RTD
Relay COM / SSR-
Relay NO / SSR+
Relay NC
Bus connector pin-outs
Diagrams show all possible option combinations so check

MaxVU Rail Terminal Wiring

Caution: Check information label on housing for correct operating voltage before
connecting supply to Power Inputs.
NEVER DIRECTLY CO
Configuration Port
configuration socket to a USB port, use adaptor
your exact product specification before connecting.
Never directly connect the dedicated
3
4
5
6
7
8
9
10
16
11
12
13
Communications
Linear +
Linear -
Output 3 – Standard & Extrusion
models
Output 2 – Standard & Extrusion
models
Power – low power or mains (hardware dependent)
Output 3 (Alarm 2 or Retx PV) – Limiter
model
Alarm 1 output – Limiter model
N -
Digital Input
Output 1 – Standard and Extrusion
models
Limit output – Limiter model (Relay only)
14
15
59633-MaxVU Rail Full Manual (EN) - Page 17 of 127
Input – thermocouple, RTD or linear
Type
International
USA ANSI MC
British BS1843
French
German
+
Black
Black
White
Black
Yellow
Black
Yellow
Black Red
Blue
-
White
Red
Blue
Black
Blue
+
Brown
Brown
Blue
Blue
White
Blue
Yellow
Blue Red
Brown
-
White
Red
Blue
Blue
Brown
+
Green
Green
Yellow
Yellow
Brown
Red
Yellow
Yellow
Red
Green
-
White
Red Blue
Purple
Green
+
Pink
Pink Orange
Orange Orange
Orange
-
White
Red
Blue
+
Grey
Grey Grey
Grey
Red
Grey
-
White
Red
Grey
+
Orange
Orange
Black
G
White
Green
Yellow
Green
Red
White
-
White
Red
Blue
Green
White
+
White
White
-
Red
+
-
Lead Colours
White
Red
Important: Using the wrong type of

Temperature Sensor Identification & Connection

Sensor Placement (Thermocouple or RTD)

If the temperature probe is to be subjected to corrosive or abrasive conditions, it must be protected by an appropriate thermo-well. The probe must be positioned to reflect true process temperature:
• In a liquid media - the most agitated area
• In air - the best circulated area
The placement of probes into pipe work some distance from the heating vessel leads to ‘transport delay’, which results in poor control.
Locate the MaxVU as close as practical to the sensor to keep lead-length to a minimum.

Thermocouple

Thermocouples are identified by wire colour, and where possible, the outer insulation as well. IEC584-3 is the most common standard, but several standards have been used worldwide. This therefore is only a guide.
J
T
K
N
B
R & S
C (W5)
PT100
IEC584-3
*
*
Note: * = Wire is magnetic
Red
96.1
Wire
Wire
reen
Sheath
NFC 42-324
DIN 43710
extension cable will cause incorrect readings.
59633-MaxVU Rail Full Manual (EN) - Page 18 of 127
Refer also to the Input Type range table in the Setup menu.

Thermocouple & RTD (PT100) Connections

Thermocouples

Connect your thermocouple to terminals 14 (positive) & 15 (negative). Carefully follow the chart above, because correct polarity is vital for proper operation.

3 Wire RTD

The MaxVU Rail is designed to support a compensated 3 wire PT100. A PT100 normally 1 white and 2 red wires. The resistive element is between the white (connect to terminal 15) & 1 red wire (connect to terminal 14). The 2nd red wire (connect to terminal 13) is required for automatic lead length compensation.

2 Wire RTD

If is recommended to use a 3-wire PT100 RTD sensor. 2-wire PT100s should only be used with lead lengths less than 3 metres. To use a 2-wire PT100 connect to terminals 14 & 15, then place a wire link between terminals 13 & 14 in place of the third wire.

4 Wire RTD

A 4-wire PT100 can be used provided it is connected as a 3-wire type, with the 2
nd
white wire is not used. The resistive element is between the 1 white wire (connect to terminal 15) & 1 red wire (connect to terminal 14). The 2
nd
red is connected to terminal 13 for the automatic lead length compensation. The remaining white wire must be left unconnected (cut short or tied back to prevent it touching other connections).
59633-MaxVU Rail Full Manual (EN) - Page 19 of 127
3
COM
4
N/O
11
12
COM (Common)
N/O (Normally Open)
16
N/C (Normally Closed)
5 6 3
SSR drive -ve
4
SSR drive +ve
11
SSR drive -ve
16
SSR drive +ve
5 6 3
Linear +ve
4
Linear -ve

Relay Output Details

Relays are rated for 2A maximum at 250Vac (resistive load).

Output 1 (Relay option) Form A SPDT Output 2 or Output 3 (Relay option) Form C SPST

SSR Drive Output Details

The SSR driver outputs give a >10VDC ‘on’ signal at 20mA maximum. Use a separate connection to the +ve & -ve of each output. Do not common together.

Output 1 (SSR Drive option) Output 2 or Output 3 (SSR Drive option)

Linear Output Details

The Linear Output is an option for Output 3. Select from 0 to 10V, 2 to 10V, 0 to 20mA, 4 to 20mA, 0 to 5V or 1 to 5V in the setup or input configuration menus.
Output 3 (Linear option)
59633-MaxVU Rail Full Manual (EN) - Page 20 of 127
The Pop-Up alert “Setup not Complete” may appear as a reminder

Powering Up

ENSURE SAFE WIRING PRACTICES HAVE BEEN FOLLOWED. WHEN POWERING UP FOR THE FIRST TIME, ISOLATE THE POWER FROM THE OUTPUT CONNECTIONS.
The instrument must be powered from a supply according to the wiring label on the side of the unit. (100vac to 240Vac, or 24 Vac/dc depending upon the model purchased.)
Carefully check the supply voltage and connections before applying power.

Powering Up Procedure

At power-up, a self-test procedure is run, during which a product logo screen is displayed. When powering up for the first time the instrument starts up in the Setup Mode after the product logo screen is displayed.
You must complete the Setup by cycling through all parameters before exiting the Setup Mode, and using the device for the first time. Otherwise the device will go into the Setup Mode, again, on subsequent power ups.
Once it has been correctly set-up, the instrument will enter the Operator Mode, after self-test, and any future access to the Setup or Advanced Configuration Modes is lock code protected.

First Power Up or Factory Default

When the unit is initially powered up or the user restores the factory defaults to the device, it immediately enters the Setup menu without requiring an unlock code. The user must then cycle through every parameter, to either view or adjust the value, and then exit the menu.
1. Use or to review every parameter.
2. Change value if necessary using , then use or to adjust the value, then to save.
3. Exit Setup by pressing & together.
If the above steps are not followed the Setup has not been completed so the device will go into Setup, again, on every subsequent power up.
that you need to finish the Setup.
59633-MaxVU Rail Full Manual (EN) - Page 21 of 127
Type
Purpose
Start-up Splash screen
Status LEDs
General temperature and other
PID or On/Off control.
1 2 3

Auto-Tuning from Setup menu

The controller can be auto-tuned from the Setup Mode.
1. Pre-tune
Pre-Tune auto-tuning will not engage if:
• Controller is set to On/Off control (Heat Proportional Band or Cool Proportional Band =
On.Off)
• Setpoint is ramping (Ramp Rate is not OFF)
• PV is within 5% of the input range (scale range) from Setpoint (applies for Pre-Tune only).
2. Auto-tune at setpoint
Auto-tune at setpoint auto-tuning will not engage if:
• Controller is set to On/Off control (Heat Proportional Band or Cool Proportional Band =
On.Off)
• Setpoint is ramping (Ramp Rate is not OFF)
• Start Tune at SP is not available for Heat & Cool processes.
Please also refer to the Automatic Tuning section for tuning advice.

MaxVU Rail Model Range

The MaxVU Rail has 3 different model types – Standard, Extrusion and Limiter. The table below shows some easily recognisable differences and explains their intended purpose.
Standard
Extrusion
Limiter
Plastic extrusion applications –
Over or Under PV prevention, without
All models have mechanical characteristics, specifications and many of the parameters in common. However, there is a separate section with more information focused on the Limiter.
The tables and parameters applicable to all models have grey or brown borders. The parameters tables specific to the Standard and Extrusion models are blue, and the Limiter specific areas are green.
applications –
PID or On/Off control.
control functions.
LM EX AL
59633-MaxVU Rail Full Manual (EN) - Page 22 of 127
3 navigation keys:
Standard:
Extrusion:
Limiter:
By default, the display turns off after 5 minutes without any key presses.
menu, parameter Screen Timeout. Any key press turns the display back on.

Front Panel

The main screen showing PV & SP, and the subsequent screens accessed from it using
or , are called the Operator Screens or Operator Mode.
Display shows PV (process variable), units, SP (setpoint), alarm/latch statuses, error & warning messages.
This is configurable in the Advanced Configuration, in the Display sub-
Ok/Select
Up
Down
3 Output Status LEDs
1 2 3
3 Status LEDs for:
Heat Cool Alarm
3 Status LEDs for
LM EX AL
°C or °F are shown for temperature inputs only. Blank for linear type input (i.e. mA, V or mV).

General Navigation & Editing

The device detects what options are fitted and intelligently hides parameters that are not relevant to your current configuration.
These navigation instructions are common to all versions of the MaxVU Rail.
Press or keys to navigate between parameters or menu items.
Press to highlight a parameter value, ready for editing.
Press or to change the parameter value, then press within 60 seconds to confirm change.
For example, changing the setpoint (SP). This example is for Standard or Extrusion models.
59633-MaxVU Rail Full Manual (EN) - Page 23 of 127

Navigating to Setup Mode or Advanced Configuration from Operator Mode

Setup Mode - press & .
Advanced Configuration - press & .
The Setup Mode has fewer parameters and is intended for quick set up of simple applications. Advanced Configuration gives access to all parameters for more complex application.

Mode Access and Lock Codes

Separate lock codes can be set for the Setup mode and for the Advanced Configuration mode.
Setup mode lock code – default
Advanced Configuration mode lock code – default
10.
20.

Returning to Operator Mode

Press & to move back one level (from Advanced Configuration sub-menus you may need to move up 2 or more levels). After 120 seconds without key presses the unit returns automatically to the first Operator mode screen.

Lock Code View Screen

If you don’t know the lock codes for any of the password protected menus, they can be found as follows:
Hold the button whilst powering up for the lock code view screen and from this screen the lock-codes (passwords) can be seen or changed. Be patient, it takes approx. 30 seconds to enter this screen at start-up.
Press & to exit.
59633-MaxVU Rail Full Manual (EN) - Page 24 of 127
minutes:seconds
hours:minutes

Time Display

Time values are displayed on the MaxVU Rail as shown in the examples below.

Use of the Controller for Non-Temperature Applications

In this controller, the Primary and Secondary outputs are referred to as “HEAT” and “COOL”.
The majority of applications for the Standard model controller involve temperature measurement and control, either via a direct sensor or indirectly via a linear dc input. However, this model can also be used for other process types, such as Relative Humidity, for example.
If your process is not temperature, then the parameters labelled as “HEAT” refer to reverse acting outputs used to increase the process value and “COOL” to decrease the process value. As an example, you may have a system that reads and controls humidity. The “HEAT” output drives the humidifier (adding moisture) and the “COOL” output drives the de-humidifier (extracting the moisture from the air). Use the “HEAT” parameters to control the humidifier and the “COOL” parameters to control the de-humidifier.

MaxVU Rail use as a Transmitter

The Standard MaxVU Rail model can be used as a “transmitter” to retransmit the process value or controller setpoint via Output 3, if the linear option is fitted. The parameter Usage in the Linear Output sub-menu can be set to PV Retransmit or SP Retransmit.
In the Display menu, the parameter Transmitter can be used to enable Transmitter view. This hides the Setpoint from view. Note: control functions will remain active if they have been configured.
59633-MaxVU Rail Full Manual (EN) - Page 25 of 127
Transmitter screen is present on Standard model only.
Transmitter parameter = Enable, SP is hidden.
in
PV
Show”
Operator
Alarm State
Alarm State
Alarm 1
Alarm 2
Loop

Operator Mode & Screens on Standard & Extrusion models

User Screen
Temperature Unit. PV – process variable (e.g. process temperature) SP - Setpoint
Manual control
PV – process variable (e.g. process temperature) Manual Power is shown as P%.
Important: The device still functions as a controller
Transmitter view enabled
using the local Setpoint.
To act as a PV transmitter the parameter Usage the Linear Output sub-menu needs to be set to
Retransmit.
Important: The following parameters are only displayed if set to “
Alarm configured, but not triggered
in the
sub-menu.
Alarm triggered
Alarm not set
59633-MaxVU Rail Full Manual (EN) - Page 26 of 127
Latch State
Output Latched
Latch
, but
output not
Maximum PV
Minimum PV
Control Enable
OFF ON
Manual Control Enable
OFF ON
P% xxx
Time On Remaining
Visible when On Timer is active.
Delay Time Remaining
Visible when Delay Timer is active.
Latch State
Out 1
Out 2
Out 3
configured
Latched
Latch not set
Screens show the Maximum & Minimum PV reached.
To clear press
then to select
Yes.
Press to accept.
To clear press
then to select “Yes”.
Press to accept.
59633-MaxVU Rail Full Manual (EN) - Page 27 of 127
- Control output(s) disabled. (Ignored when in manual mode).
- Control output(s) enabled.
- Automatic control, PID or On-Off control available.
- Manual control, Manual Power shown as
On Timer
Delay Timer
See Ramp & Timers diagram.
See Ramp & Timers diagram.
.
Message
Description
Alarm 1
Alarm 1 is active.
Alarm 2
Alarm 2 is active.
Alarm 1 & 2
Alarm 1 and 2 are active.
Control Enabled
Alerts user that the control is re-enabled. (not Limiter.)
Calibration Pass
Factory calibration (Full Input Calibration has passed.)
Calibration Fail
Factory calibration (Full Input Calibration has failed.)
Tuning in Progress
Tune at Setpoint or Pre-Tune is running. (Not Limiter.)
Setup not completed
Please refer to First Power Up or Factory Default section.
Offset in use
SP offset is being used in Setpoint sub-menu.
Limiter only, indicates when the limit value has been exceeded.

Warnings & Messages

Do not continue running your process until any issues are resolved.

Pop-Up Alerts

Pop-up alerts appear in front of the current screen. They must be acknowledged before you can access other screens.
For example, Pop-up alert for Alarm 1.
Press and together to clear the pop-up alert.

Pop-Up Alert List

Limit Exceeded
Tune Error
PV within 5% of SP
Tune Error
Setpoint is ramping
Tune Error
Control is ON/OFF
Tune Error
Control is manual
Tune Error
Tune at Setpoint not able to run
PV within 5% of the scale range input from SP (for Pre-Tune). Try a different setpoint or narrow the scale range input.
Setpoint is ramping. Turn off ramping and try again.
Control is not set to PID, i.e. the proportional band = 0. Set the proportional band to any other value and try again.
Manual control enabled when attempting Pre-Tune. Use Tune At Setpoint or set Manual Control Enable to OFF.
Tune at setpoint has timed out or cannot run.
59633-MaxVU Rail Full Manual (EN) - Page 28 of 127
Message
Description
ALARM
Alternates with PV and shows one, or both, Alarms are active.
LATCH
Alternates with PV, one or more outputs are latched on & no alarm is active.
LIMIT
On Limiter model, alternates with PV to show Limit is active.
Process variable input >5% over-range.
Process variable input >5% under-range.
Also, check that Scale Range Minimum is low enough for your application.
Break detected in process variable input sensor, wiring or wrong input type
OPEN
models), or Limit state set until resolved on Limiter model.
Selected input range is not calibrated.
models), or Limit state set until resolved on Limiter model.
TUNE
Alternating with SP shows Auto-tuning is in progress.
P%
Manual power value replaces setpoint, shows P% xxx of power.
Ramp
Setpoint ramp is active (alternates with actual setpoint).
Control is disabled. Control output(s) are off.
Input if Digital I/P Action is set to Ctrl Enable/Disable.
DELAY
Shows when Delay Timer is active, control is off until the timer finishes.
Tuning messages
tErr1
PV within 5% of the scale range input from SP (for Pre-Tune). Try a different setpoint or narrow the scale range input.
tErr2
Setpoint is ramping.
tErr3
Control is ON/OFF. Control is not set to PID, i.e. the proportional band = 0.
Tune Error
Sensor Break
Tune Error
Timer Running

Message List

Messages seen in the operator mode.
Message Description
Check your sensor.
Timer Running. Set the Enable Timer parameter to Disabled.
HIGH
Check for possible issues with sensor or connections. Also, check that Scale Range Maximum is high enough for your application.
LOW
OPEN
ERROR
OFF
Check for possible issues with sensor or connections.
selected. Shows
until resolved, Control is disabled on Standard or Extrusion
Shows ERROR until resolved, Control is disabled on Standard or Extrusion
Enable control by setting Control Enable to ON or check state of the Digital
The Automatic Tuning parameter must be changed to Off to clear any tuning message. Display alternates between the tuning code & setpoint.
59633-MaxVU Rail Full Manual (EN) - Page 29 of 127
tErr4
Control is manual. Set Manual Control Enable to OFF.
tErr5
Tune at Setpoint not able to run.
tErr6
Sensor Break.
tErr7
Timer Running. Set the Enable Timer parameter to Disabled before attempting to run tuning again.
tErr8
Control is disabled. Please check it is safe to enable control and then go to the User menu to change Control Enable to ON.
Tuning messages
The Automatic Tuning parameter must be changed to Off to clear any tuning message. Display alternates between the tuning code & setpoint.
59633-MaxVU Rail Full Manual (EN) - Page 30 of 127
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