DIGITAL MVP OPERATOR`S MANUAL

R
THE MEASURE OF EXCELLENCE. SM
DIGITAL MVP OPERATOR'S MANUAL
Part Number 69066 (Rev. E)
Hamilton Company Instrument Warranty
Hamilton Company warrants this equipment (except valves*) to be free of defects in
material and workmanship for 12 months from the date of receipt. This warranty is
extended to the buyer of record on the original purchase order to Hamilton
Company. Hamilton Company or an authorized Hamilton representative agrees to
repair or replace, at its option and free of charge to the buyer at a normal place of
business or at a Hamilton repair facility, any part or parts that under proper and
normal use prove to be defective during the warranty period.** Abuse, unauthorized
replacement of parts, modifications, or adjustments made by other than Company or
its assigned representatives voids this warranty.
This warranty gives you specific rights. No other warranties, expressed or implied,
including implications of warranties of merchantability and fitness for a particular
product, are made. Hamilton Company's liability on the sale of all products shall be
limited to repair, replacement, or refund of price of any defective product.**
Hamilton Company endeavors to provide prompt and satisfactory service.
*All Hamilton Company valves are warranted to be free of defects in material and
workmanship at the time of delivery.
**Hamilton Company reserves the right to refuse to accept the return of any
instrument or valve that has been used with radioactive or microbiological
substances, or any other material that may be deemed hazardous to employees of
Hamilton Company.
GASTIGHT is a registered trademark of Hamilton Company.
Microlab is a registered trademark licensed to Hamilton Company.
SANI-CLOTH is a trademark of Professional Disposables, Inc.
RBS-VIRO is a registered trademark of FLUKA Chemical Corp.
Copyright December 1993, Hamilton Company
First Printing 1993, Rev. B Printing 1999
Figures and Tables
iii
Contents
Section 1.
Introduction....................................................................................... 1-1
1.1 Digital MVP Operational Summary .............................................. 1-2
1.2 Technical Specifications .............................................................. 1-3
1.3 Service and Technical Support Procedures................................. 1-4
Section 2.
Getting Started .................................................................................. 2-1
2.1 Unpacking Your Digital MVP ....................................................... 2-2
2.2 Setting Up the MVP ..................................................................... 2-4
2.2.1 Front Panel Components of the MVP ............................... 2-4
2.2.1.1 LED/Error Indicator .............................................. 2-4
2.2.1.2 Valve Connector Port ........................................... 2-6
2.2.1.3 Valve Indexing Pin ............................................... 2-6
2.2.1.4 Valve Position Indicator ....................................... 2-6
2.2.1.5 Initialize Membrane Switch .................................. 2-7
2.2.1.6 Clockwise and Counterclockwise Membrane
Switches............................................................... 2-7
2.2.2 Rear Panel Components of the MVP................................ 2-7
2.2.2.1 Power Receptacle ................................................ 2-9
2.2.2.2 DIP Switch S1 ...................................................... 2-9
2.2.2.3 Digital Input/Output Ports..................................... 2-9
2.2.3 Power Adapter ................................................................2-10
2.2.4 Connecting Valves and Tubing....................................... 2-10
iv
2.3 Valve Selection .......................................................................... 2-13
Section 3.
Operating the Digital MVP................................................................ 3-1
3.1 Operational Overview of the Digital MVP..................................... 3-2
3.2 Manual Operation of the Digital MVP .......................................... 3-3
3.3 External Control of the Digital MVP ............................................. 3-5
3.3.1 Controller Cable Configuration ......................................... 3-5
3.3.2 Configuration of the Digital MVP for External Control ...... 3-7
3.3.2.1 Determining Valve Position Mode........................ 3-7
3.3.2.2 Determining Active High or Active Low Status..... 3-9
3.3.2.3 Determining Communication Method................... 3-9
3.3.2.3.1 Discrete Communication ....................... 3-10
3.3.2.3.2 Binary Communication .......................... 3-12
3.3.2.3.3 Sequential Communication ................... 3-14
3.3.3 Test Mode....................................................................... 3-15
3.3.4 Operating the Externally Controlled MVP ....................... 3-15
3.4 MVP Errors ................................................................................ 3-17
3.4.1 Types of Errors ............................................................... 3-17
3.4.2 Correcting Errors ............................................................3-18
Section 4.
Maintaining the MVP......................................................................... 4-1
4.1 Cleaning and Decontaminating the MVP..................................... 4-2
4.2 Periodic Maintenance .................................................................. 4-3
4.3 Troubleshooting ........................................................................... 4-4
v
Section 5.
Ordering MVPs, Valves, Accessories and Replacement Parts..... 5-1
5.1 Valve Configurations and Part Numbers ..................................... 5-2
5.2 Accessories and Replacement Parts ........................................... 5-4
5.3 MVP Configuration Table and Part Numbers............................... 5-5
Glossary .............................................................................................................. GL-1
Index ..................................................................................................................... IN-6
vi
List of Figures
Figure 2-1. MVP Package Contents ...................................................................... 2-3
Figure 2-2. Front Panel of the Hamilton MVP ......................................................... 2-5
Figure 2-3. Rear Panel of the Digital MVP.............................................................. 2-8
Figure 2-4. Side View of an HVXM Hamilton Valve.............................................. 2-11
Figure 2-5. Valve Fitting and Flanged Tubing....................................................... 2-12
Figure 3-1. Input Terminal Block and Eight Wire Cable.......................................... 3-6
List of Tables
Table 1-1. Digital MVP Technical Specifications .................................................... 1-3
Table 3-1. DIP Switch S1 Configurations for Digital MVP Manual Operation......... 3-3
Table 3-2. DIP Switch S1 Configurations for External Control of the Digital MVP. 3-8
Table 3-3. Controller Input Values for Discrete Communication........................... 3-11
Table 3-4. Controller Input Values for Binary Communication..............................3-13
Table 3-5. Controller Input Values for Sequential Communication ....................... 3-15
Table 4-1. MVP Troubleshooting Chart .................................................................. 4-4
Table 5-1. Valve Configurations and Part Numbers for MVP Valves...................... 5-2
Table 5-2. Accessories and Replacement Parts for the Digital MVP...................... 5-4
Table 5-3. MVP Configurations and Part Numbers................................................. 5-5
vii
Section 1.
Introduction
This operator's manual provides set-up and operational instructions,
technical specifications, maintenance and troubleshooting
suggestions, and ordering information for the digital Modular Valve
Positioner (MVP). Also included is information on optional and
replacement Hamilton HVM and HVXM valves.
Two symbols appear throughout this manual to bring special
attention to potentially hazardous conditions or suggestions for
optimizing the performance of the MVP.
Caution:
This symbol warns that a potentially
hazardous condition may result for either
the MPV or the operator.
*
Note: This symbol represents a suggestion for
optimizing the performance of the MVP through set-up
and operational tips. *
Section 1 Introduction
1-1
1.1 Digital MVP Operational Summary
The Hamilton Modular Valve Positioner (MVP) controls single or multiple fluid
paths by Hamilton valves that have from two to eight ports. The MVP opens and
closes valve ports as directed by the user. It can be operated manually or linked to a
controller for external control. The MVP can be operated as a stand-alone unit or as a
"built-in" instrument for original equipment manufacturers (OEMs).
There are two input/output versions of Hamilton's MVP, varying in the way that the
user communicates with them.
•
The digital MVP may be controlled by equipment with TTL (transistor-transistor
logic) or switch closure outputs. Six valve position modes are available. Three
command formats are available: discrete, binary and sequential.
•
The serial MVP is designed for applications where the controlling equipment has
an RS-232 serial communication port. It can be programmed for six defined
valve position modes, and up to 16 serial MVPs can be daisy-chained.
This manual describes the use of the digital MVP. The serial MVP is described in the
Serial MVP Operator's Manual.
1-2
Digital MVP Operator’s Manual
1.2 Technical Specifications
Technical specifications for the digital MVP are shown in Table 1-1.
Table 1-1. Digital MVP Technical Specifications
Rotational Speed
20 RPM (3 sec. full revolution)
Dimensions
Height: 5.20 in (13.21 cm)
Width: 3.52 in (8.94 cm)
Depth (without valve): 5.20 in (13.21 cm)
Weight
2.3 lb (1.04 kg) for unit without power adapter
Power Requirements
24VDC @ 500 mA (supplied by power adapter)
Storage Temperature
-40 oF to 160 oF (-40 oC to 70 oC)
Operating
Temperature Range
40 oF to 100 oF (5 oC to 40 oC)
Positional accuracy at
Valve Port
+ 7o (valve and MVP unit combined)
Regulatory Compliance Inform Regulatory Compliance Information
Pollution degree
2
Installation category
II
Indoor Operation and Use Only
Section 1 Introduction
1-3
1.3 Service and Technical Support Procedures
Contact Hamilton's Technical Support Department TOLL-FREE at 1-800-648-5950
(USA and Canada) if you have questions as you use this manual. Outside the USA
and Canada, call 1-775-858-3000. For instrument service call +1-800-527-5269.
Hamilton's FAX number is 1-775-856-7259.
Before returning an MVP to Hamilton in Reno for repair, flush out all contaminates.
If valve and tubing are contaminated or if they come into contact with biohazard
samples, follow safe laboratory practices in selecting and using a cleaning fluid to
thoroughly purge and disinfect them. Use a cleaning solvent that is compatible with
the fluids previously run through the system (deionized water, urea, ethanol, or a
bleach and water solutions). DO NOT return tubing or valves.
When returning an MVP to Hamilton in Reno, notify Hamilton's Customer Service
Department (1-800-648-5950), from 7:00 a.m. to 5:00 p.m. Pacific Time, and request a
Returned Goods Authorization Number (RGA #) . When calling, please provide
the serial number, product part number, valve type description, and a description of
any hazardous material used with the MVP.
Hamilton Company reserves the right to refuse a return shipment of any
Hamilton product used with radioactive or microbiological substances or any
other material deemed hazardous to its employees.
Returned goods should be delivered to:
Hamilton Company
505 Edison Way
Reno, NV 89502
1-4
Digital MVP Operator’s Manual
Section 2.
Getting Started
This section provides unpacking information, component
descriptions, set up procedures, valve selection information, and
preparatory operating instructions for the digital MVP.
Section 2 Getting Started
2-1
2.1 Unpacking Your Digital MVP
Your new MVP has been carefully inspected and packaged, and every precaution has
been taken to ensure its safe arrival. Please retain the reusable carton for return or
repair of the MVP, if needed.
Inspect the exterior of the shipping container for damage. If damage is evident,
contact the carrier immediately and file a report with the appropriate shipping agent.
Check the contents of the package and verify that all parts are included. See Figure
2-1 for a summary of items found in the MVP packing box.
2-2
Digital MVP Operator’s Manual
Figure 2-1. MVP Package Contents
MVP PACKAGE CONTENTS
Unpacking
Instructions
Packing
Power Adapter
MVP Unit with
Valve Attached
Ship Kit Contains
1-Valve Label Set
1-Returned Goods Tag
2-Digital MVP Cables
1-Operator's Manual
1-LED
Power Cord
(in 220 VAC
units only)
Packing
Section 2 Getting Started
2-3
2.2 Setting Up the MVP
Set the MVP up on a clean, flat, and stable surface. There are four suction-cup type
feet on the unit that ensure stabilization of the unit during operation.
2.2.1 Front Panel Components of the MVP
The MVP has several front panel components with which the user should be familiar
to make operation easier. Components of the front panel are described below in
detail. Refer to Figure 2-2 for a view of the front panel of an MVP.
2.2.1.1 LED/Error Indicator
A green Light Emitting Diode (LED) illuminates to indicate the power is on. There is
no OFF/ON power switch for the MVP. To turn the unit on or off, connect or
disconnect it at the wall outlet or at the adapter cord.
In addition, if an error occurs, the LED flashes and the unit beeps until the error is
corrected.
Refer to Section 3.4 for more information on MVP errors.
2-4
Digital MVP Operator’s Manual
Figure 2-2. Front Panel of the Hamilton MVP
LED/Error Indicator
R
Valve Connector
Port
Valve Indexing Pin
HVXM
HVM
manual
1
initialize
4
2
Initialize Switch
3
Clockwise
Switch
Valve Position Indicator
Counterclockwise
Switch
Section 2 Getting Started
2-5
2.2.1.2 Valve Connector Port
The valve connector port houses the removable HVM or HVXM style valves
manufactured by Hamilton Company. The port allows quick and easy, tool-free
installation and removal of valves.
2.2.1.3 Valve Indexing Pin
The valve indexing pin stabilizes the valve housing, preventing the outside of the
valve from rotating while the motor is running. The pin can be shifted to either the
up or the down position. The up position is for HVM valves while the down position
is for the larger HVXM valves.
Use a small screwdriver or similar device to push the valve indexing pin either up or
down.
2.2.1.4 Valve Position Indicator
The appropriate label for the factory-installed valve has been applied to the lower left
corner of the MVP front panel. This label represents the external appearance and
internal rotating plug of the valve ordered. It also illustrates the flow path during
operation.
The MVP ship kit contains a complete set of reusable labels (Valve Label, P/N
36778). Instructions are included for removing and applying the labels onto the MVP
following a valve configuration change.
2-6
Digital MVP Operator’s Manual
2.2.1.5 Initialize Membrane Switch
The membrane switch labeled "initialize" on the front panel is a manual control that
allows the user to initialize or establish the basic conditions for operation of the unit.
Initialize the MVP, either manually or through an external controller, every time you
power up the unit, following an MVP error, and after removal or installation of a
valve.
2.2.1.6 Clockwise and Counterclockwise Membrane Switches
The membrane switches labeled with clockwise and counterclockwise arrows are
manual controls for repositioning the valve. Each time you push one of these
switches, the valve will move to the next position in the direction indicated.
If you press these switches before the unit has been initialized after powering up the
MVP, the unit will first initialize, then move to the next valve position from position
1.
Section 2 Getting Started
2-7
2.2.2 Rear Panel Components of the MVP
The digital MVP rear panel components include a power receptacle, an MVP
configuration DIP switch, and digital input and output ports. The rear panel of the
digital MVP appears in Figure 2-3.
Figure 2-3. Rear Panel of the Digital MVP.
R
MODULAR VA LVE POSITIONER - DIG ITA L I/O
R
PART NO.
SERIAL NO.
LR-52122
OUTPUT
Digital
Input
Port
INPUT
1
2
3
4
Digital
Output
Port
BUSY DIR
ERR COM
COMMON
COMMON
POWER
1
SWITCH
S1 ON/1
2
3
24VDC
500mA
1
2
3
5
6
INFORM ATION
Power Receptacle
2-8
4
123456
Digital MVP Operator’s Manual
F U NC T IO N
4x 9 0
2x 9 0
2x 1 8 0
3x 9 0
6x 6 0
8x 4 5
O P E N 1
O P E N 2
A C T IV E L O
A C T IV E H I
D IS C R E T E B I NA R
Y S E Q UE NT IA L
TEST
1 2 3 4 5 6
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
Dip Switch
S1 Inputs
0
1
0
1
0
1
0
0
1
1
Dip Switch S1
2.2.2.1 Power Receptacle
The power receptacle connects to the MVP power adapter, which in turn is attached
to an AC circuit by a three-prong plug.
Caution:
Do not attempt to operate the MVP with the
ground prong either disconnected or removed.
2.2.2.2 DIP Switch S1
DIP Switch S1 has six individual switches that allow the user to configure the MVP
for the number of active valve positions and the required angle between valve
positions, the active high or low status of the controller, the mode of communication
with the controller, and a test mode. The table beside DIP Switch S1 describes switch
settings. Refer to Section 3.3.2 for more information.
2.2.2.3 Digital Input/Output Ports
The digital MVP has two eight-position terminal blocks with TTL or switch-closure
inputs/outputs for communication with an external controller.
The terminal blocks can be configured for discrete, binary or sequential
communication, depending on the application and controller specifications. The
bottom MVP panel has a table describing input values for the various modes of
communication. Refer to Section 3.3.2.3 for more information.
Section 2 Getting Started
2-9
2.2.3 Power Adapter
The power adapter for the MVP comes packed in a box in the MVP package (See
Figure 2-1). The box contains the power adapter with a three-prong plug that can be
inserted into any wall outlet.
Power adapters can be ordered for either 120VAC/24VDC, 500mA (P/N 6500025) or
220VAC/24VDC, 500 mA (P/N 6500026), depending on user need. A power cable is
supplied with the 220VAC/24VDC adapter.
A universal power supply (90-260VAC/24VDC, 800 mA) is also available (P/N
6500028). It is recommended for use in Japan (100VAC) and in Australia (240VAC).
An IEC power cord with the appropriate wall plug is required with this supply.
2.2.4 Connecting Valves and Tubing
A new series of valves was developed for use only with the Hamilton MVP. Please
use valves of the HVM and HVXM series only.
Caution: Hamilton HVM and HVXM valves are specifically
designed to operate in Hamilton's MVP. Attempts
to install other types of valves, or fittings, tubing,
and valves supplied by other manufacturers may
cause serious damage to the MVP and may void all
warranties.
To install the valve into the MVP, insert the shiny metal valve stem into the valve
connector port on the MVP front panel. Note the slot for the valve indexing pin on
the bottom side of the valve. Push the valve until it firmly seats against the MVP,
with the indexing pin positioned in the slot on the valve (Refer to Figure 2-4).
2-10
Digital MVP Operator’s Manual
Figure 2-4. Side View of an HVXM Hamilton Valve
Valve Stem
*
Slot for Valve Indexing Pin
Valve Port
Note: For proper installation, the valve indexing pin should be in the
up position for HVM valves and in the down position for the larger
HVXM valves. *
Purchase tubing for the MVP valve in a variety of sizes and materials. Tubing may
be purchased with tube fittings and washers already assembled.
To install the tubing, screw the fitting into the desired valve port. Moisten the fitting
with water before inserting it into the valve. Tighten the fitting by hand; do not use
tools. Refer to Figure 2-5.
Section 2 Getting Started
2-11
Figure 2-5. Valve Fitting and Flanged Tubing
Flanged
Tubing
Washer
Valve
Fitting
Wet threads prior to insertion into
valve port. Hand-tighten the fitting.
Insert into valve port.
Caution: The tubing fittings and valve can easily be
damaged by over tightening. Do not use any tools
to tighten the fitting. Hand-tighten the fitting only.
2-12
Digital MVP Operator’s Manual
2.3 Valve Selection
The MVP accepts all Hamilton "M" series HVM and HVXM valves. These valves
were designed specifically for use with the MVP.
Caution: Using valves other than those designated HVM or
HVXM for the operation of the MVP may damage
the unit and void the warranty.
When selecting a valve, consider the application, liquid viscosity and flow rate.
HVM valves, with internal orifice diameters of 0.059 inches (1.50 mm), work in most
situations. With highly viscous fluids or with high flow rates, HVXM valves, most
having an internal orifice diameter of 0.118 inches (3.00 mm), provide a better option.
There are numerous options for flow in HVM and HVXM valves, differing in the
number of ports available on the valve and the angle or direction of flow. There are
eight standard valve configurations, six distribution valve configurations, and two
loop valve configurations. Distribution valves have an additional valve port,
allowing up to eight different fluids to enter one output line. Loop valves are
available only as HVXM valves and provide in and out ports for up to four fluids at
any one time.
See Section 5 for a complete description of valve flow patterns.
Section 2 Getting Started
2-13
Section 3.
Operating the Digital MVP
This section provides information on operating the digital MVP
either manually or through TTL or switch closure outputs.
Information is also provided on determining valve position mode,
active high or active low operating status, communication method,
and initialization. Also, the types of errors that may be
encountered are described along with corrective procedures.
Section 3 Operating the Digital MVP
3–1
3.1 Operational Overview of the Digital MVP
The digital MVP is a microprocessor controlled unit capable of activating a Hamilton
valve. Use up to eight valve positions, either manually or with an external controller
having TTL or switch closure outputs.
Use the manual mode when operating the MVP as a stand-alone unit or when other
instruments used in conjunction with the MVP have no external events port.
Manually control the unit by pressing membrane switches on the front of the MVP
unit. Manual operators can advance (clockwise or counterclockwise) to the next
valve position.
When external control of the MVP is available, the communication method will
depend on the number of external events/output connections that are available on
the controlling unit. Communication can be discrete, binary, or sequential. See
section 3.3.3 to determine which method applies for specific situations.
3–2
Digital MVP Operator's Manual
3.2 Manual Operation of the Digital MVP
To manually operate the MVP, follow the steps below:
1.
Determine the valve position mode from Table 3-1, and set S1 DIP switches
1-3 on the rear of the MVP to correspond with the selected function. OFF is
in the down position and ON is in the up position. This information also
appears in a table on the rear of the MVP unit.
These dip switches were set at the factory for the valve ordered. However, if
you ordered more than one valve, you may need to reconfigure switches 1-3
after a valve change.
Table 3-1. DIP Switch S1 Configurations for Digital MVP Manual Operation
Function
1
2
3
Valve Position Mode (switches 1-3)
2.
4 positions at 90o
OFF
OFF
OFF
2 Positions at 90o
ON
OFF
OFF
2 Positions at 180o
OFF
ON
OFF
3 Positions at 90o
ON
ON
OFF
6 Positions at 60o
OFF
OFF
ON
8 Positions at 45o
ON
OFF
ON
Ensure that the valve and tubing are in place.
Caution: Operating an MVP without fluid in the valve for
extended periods of time reduces the life of the
valve. Before initialization, ensure that all tubing is in
place and that fluid will enter the valve as soon as
possible.
Section 3 Operating the Digital MVP
3–3
3.
Connect the MVP power adapter to the rear of the MVP.
4.
Plug the power adapter into a three-prong AC outlet. When the LED
illuminates, the MVP is ready for operation.
5.
Press the initialize membrane switch. The MVP initializes.
During initialization, the valve rotates clockwise for 1.67 to 2.75 revolutions
(at least 601o) and automatically stops at the number 1 position, where it
remains until you press another front panel membrane switch.
6.
3–4
To rotate the valve manually from one port to another, press the appropriate
clockwise or counterclockwise switch for each movement of the valve.
Digital MVP Operator's Manual
3.3 External Control of the Digital MVP
Digital input/output ports on the rear of the MVP allow for external control of the
digital MVP. The two eight-position terminal blocks can be linked to an external
controller with discrete, binary, or sequential communication modes.
3.3.1 Controller Cable Configuration
Since the MVP has such broad applications, the input/output cables will vary
dramatically with controller type and function. As a result, cables cannot be
configured at the factory for every application.
Hamilton does not supply the cable connector for the controller interface unless the
controller is also supplied by Hamilton. Configure this connector to match the
controller interface port.
The cable connector for the MVP end of the cable is supplied, but must be assembled.
Follow these directions to attach the cable connector for the MVP:
1.
Locate the orange terminal blocks on the rear of the MVP. They are plugged
into the digital input and output ports.
2.
Remove the input terminal block by grasping the top and bottom of the block
and pulling gently, rocking from top to bottom to loosen it.
3.
Locate one of the two 6-foot cables in the ship kit with eight colored wires
extending from each end.
4.
Hold the terminal block with the numbers and letters facing you. To the side
of each number and letter, there is a slot for insertion of one of the wires. On
the other side is a screw that will hold the wire in place (Figure 3-1).
Section 3 Operating the Digital MVP
3–5
Figure 3-1. Input Terminal Block and Eight Wire Cable
Digital Cable with 8 Wires
3–6
Input Terminal Block
5.
Separate the eight wires; insert one into slot #1; and tighten the screw on
the side. When inserting each color-coded wire into the terminal block,
make sure that the bundle of silver-colored wires does not separate or
become bent. Insert the wire straight into the slot until it stops; it should
require no force. Tighten the screw until the wire is held firmly in place.
6.
Attach all eight wires even though you may not use or need them. The wires
are color coded in no particular order, but remember to match the color
order on the connector at the controller (i.e., If the white wire is in position
one in the connector at the controller, the white wire should be in position
one in the terminal block connector).
7.
Replace the terminal block connector onto the back of the MVP unit by
pushing it in. Make sure the terminal block labeled INPUT goes into the
digital input port with the word INPUT facing up.
Digital MVP Operator's Manual
8.
Repeat the cable configuration process for the output cable. It is not
necessary to use the output cable for operation of the MVP by the controller.
However, if you want to monitor MVP function on a screen or other device,
you must attach the output cable.
9.
Input lines 6, 7 and 8, and output lines 7 and 8, are common lines. Attach at
least one common input line and output line (if used) to the ground on the
controlling unit.
3.3.2 Configuration of the Digital MVP for External Control
Configure the digital MVP for external control with DIP Switch S1, also on the rear of
the MVP unit. Refer to Table 3-2 for configuration of switches 1-6. An X in any
column indicates the switch does not control that function.
3.3.2.1 Determining Valve Position Mode
Valve position mode is determined by the function desired and the valve selected.
Table 3-2 shows six options available for valve position mode. Two open channels
are available for OEM or specially programmed functions.
Set DIP Switch S1 switches 1-3 to prepare the MVP for valve position mode based on
the valve chosen.
This information also appears in a table on the rear of the MVP unit.
Section 3 Operating the Digital MVP
3–7
Table 3-2. DIP Switch S1 Configurations for External MVP Digital Control
Function
1
2
3
4
5
6
Valve Position Mode (switches 1-3)
4 Positions
at 90o
OFF
OFF
OFF
X
X
X
2 Positions
at 90o
ON
OFF
OFF
X
X
X
2 Positions
at 180o
OFF
ON
OFF
X
X
X
3 Positions
at 90o
ON
ON
OFF
X
X
X
6 Positions
at 60o
OFF
OFF
ON
X
X
X
8 Positions
at 45o
ON
OFF
ON
X
X
X
Open 1
OFF
ON
ON
X
X
X
Open 2
ON
ON
ON
X
X
X
Active Select (switch 4)
Active Low
X
X
X
OFF
X
X
Active High
X
X
X
ON
X
X
Digital Communication Mode (switches 5 and 6)
Discrete
X
X
X
X
OFF
OFF
Binary
X
X
X
X
ON
OFF
Sequential
X
X
X
X
OFF
ON
Test
X
X
X
X
ON
ON
An X in any column indicates that the switch does not control that function.
3–8
Digital MVP Operator's Manual
3.3.2.2 Determining Active High or Active Low Status
The digital MVP recognizes TTL (transistor-transistor logic) commands. TTL can
have either active high status or active low status. The MVP is factory-set for active
low operating status by placing DIP Switch S1-4 in the down or OFF position (Table
3-2).
The easiest way to determine if your controlling instrument is active high or active
low is to check the instrument manual. However, if you cannot find the manual or
information you need, use the LED provided in the ship kit.
To use the LED, remove the input terminal block from the rear of the MVP unit.
Connect the longer LED lead to the input terminal cable connector in position
#1
(leave cable connected). Attach the other LED lead to the common connector
position on the input terminal cable connector.
Send a command via the controller containing all 1s. If the light comes on, the
controller is Active High. If the light does not come on, send a command containing
all 0s. If the light comes on, the controller is Active Low.
3.3.2.3 Determining Communication Method
Count the number of external events/output connections that are available on the
controlling unit. The number of available lines determine the communication
method.
Three modes of external communication are available: discrete, binary, and
sequential. DIP Switch S1-5 and S1-6 configure the digital MVP for the
communication method (Table 3-2).
On the MVP 8-position output terminal, lines 1, 2, 3, and 4 indicate the position of the
valve plug, based on the configuration of DIP Switch S1. When a command has
successfully completed, the four output port lines will indicate the current valve
position according to the digital mode selected.
Section 3 Operating the Digital MVP
3–9
When the MVP is busy, lines 1-4 are in standby mode. A busy signal for output line
5 indicates a moving valve plug. Commands are not recognized during a busy state.
When output line 6 indicates an error, the terminal reading will be 1. When it is
ready to accept more commands, the output line 6 reading will be 0. Please note that
not all controllers will have the capability of interpreting data from output lines 5
and 6.
In addition, a test mode is available to assess MVP function and troubleshoot any
operational errors.
3.3.2.3.1
Discrete Communication
Achieve discrete communication with one to four lines of digital input. Each line
controls a position of the valve. This method is acceptable when four or fewer valve
ports are to be used.
The valve can be rotated to any of the available ports in any order in the clockwise
direction. If a jumper wire is connected between the input DIR terminal and the
common terminal, the valve will rotate in the counterclockwise direction.
DIP Switches S1-5 and S1-6 will both be in the down or OFF position for discrete
communication (Table 3-2).
Input values will vary depending on whether the controlling instrument is active
high or active low. See Table 3-3 for input values to operate the valve with discrete
communication. The table also appears on the bottom of the MVP unit.
Note that when inputting values from Table 3-3, the values should be read from right
to left. (i.e., To open valve position 1, type in 1110 and a return if the controller status
is Active Low, or type 0001 and a return if the controller status is Active High.)
3–10
Digital MVP Operator's Manual
Table 3-3. Input Values for Discrete Communication
Active Low
Input/Output Line
#1
#2
#3
#4
1
0
1
1
1
2
1
0
1
1
3
1
1
0
1
4
1
1
1
0
Initialize
0
0
0
0
Standby
1
1
1
1
Position
Active High
Input/Output Line
#1
#2
#3
#4
1
1
0
0
0
2
0
1
0
0
3
0
0
1
0
4
0
0
0
1
Initialize
1
1
1
1
Standby
0
0
0
0
Position
Section 3 Operating the Digital MVP
3–11
3.3.2.3.2
Binary Communication
In binary communication, two, three, or four lines of communication control three,
seven, or eight valve positions, respectively. A fifth communication line controls
valve rotational direction. All valve configurations shown in Table 3-2 can be
utilized.
Rotate the valve to any position, in any order. With only four lines, the valve will
only rotate in a clockwise direction. If a jumper wire is connected between input DIR
terminal and a common terminal, the valve will rotate in a counterclockwise
direction. With a fifth communication line, the rotation direction can be controlled
by the controlling unit.
DIP Switch S1-5 will be in the up or ON position and S1-6 will be in the down or OFF
position for binary communication (Table 3-2).
Input lines will vary, depending on whether the controlling instrument is active high
or active low. See Table 3-4 for configuration of input lines for binary
communication. This table also appears on the bottom of the MVP unit.
Note that when inputting values from Table 3-4, the values should be read from right
to left (i.e., to open valve position 1, type in 1110 and a return if the controller is
Active Low, or type 0001 and a return if the controller is Active High.)
3–12
Digital MVP Operator's Manual
Table 3-4. Input Values for Binary Communication
Active Low
Input/Output Line
#1
#2
#3
#4
1
0
1
1
1
2
1
0
1
1
3
0
0
1
1
4
1
1
0
1
5
0
1
0
1
6
1
0
0
1
7
0
0
0
1
8
1
1
1
0
Initialize
0
0
0
0
Standby
1
1
1
1
Position
Active High
Input/Output Line
#1
#2
#3
#4
1
1
0
0
0
2
0
1
0
0
3
1
1
0
0
4
0
0
1
0
5
1
0
1
0
6
0
1
1
0
7
1
1
1
0
8
0
0
0
1
Initialize
1
1
1
1
Standby
0
0
0
0
Position
Section 3 Operating the Digital MVP
3–13
3.3.2.3.3
Sequential Communication
You can use up to eight valve positions with sequential communication and either
one or two lines of communication. The valve rotates clockwise to the next position.
If a jumper wire is attached between the DIR input terminal and a common terminal,
the valve rotates counterclockwise.
DIP Switch S1-5 will be in the down or OFF position and S1-6 will be in the up or ON
position for sequential communication (Table 3-2).
The input line(s) will vary depending on whether the controlling instrument is active
high or active low, and whether one or two lines of communication are available.
When only one line of communication is available, connect the line to the number
one position on the MVP input terminal block. Initialize the instrument manually.
To move to the next valve position, toggle the line from 1 to 0 if the controller is
active low. To do this, enter 1 followed by a carriage return. Then enter a 0, followed
by a carriage return. The valve should move to the next valve position.
If the controller is active high, attach the second line of the cable to one of the
common ground ports on the MVP input terminal block. Toggle the line from 0 to 1
to advance the valve to the next position.
When two lines of communication are available, you can use Move, Initialize and
Standby positions. To move the valve to the next position, there is a two-step
command, with each step followed by a carriage return.
See Table 3-5 for configuration of two input lines for sequential communication. This
table also appears on the bottom of the MVP unit.
Note that when inputting values from Table 3-5, the values should be read from right
to left. (i.e., To open valve position 1, type in 10 and a return if the controller is
Active Low, or type in 01 and a return if the controller is Active High.)
3–14
Digital MVP Operator's Manual
Table 3-5. Input Values for Two-Line Sequential
Communication
Active Low
Input Line
#1
#2
Step 1
1
1
Step 2
0
1
Initialize
1
0
Standby
1
1
Move
Active High
Input Line
#1
Move
#2
Step 1
0
0
Step 2
1
0
Initialize
0
1
Standby
0
0
Section 3 Operating the Digital MVP
3–15
3.3.3 Test Mode
Configure the MVP for Test Mode by placing switches 5 and 6 both in the up or ON
position in DIP Switch S1. This will activate the self-test mode, moving the valve
through all positions defined by the Position Mode for six revolutions. The system
then performs quasi-random positioning and directional movements. The test mode
continues indefinitely until the power is disconnected and the configuration in DIP
Switch S1 is changed.
The test mode is accessible only with manual control of the MVP, and allows the
user to determine if the Position Mode is correctly programmed in DIP Switch S1.
3.3.4 Operating the Externally Controlled Digital MVP
To operate the externally controlled digital MVP, follow the steps below:
1.
Determine the valve position mode, active select mode, and the digital
communication mode from Table 3-2. Set switches 1-6 in DIP Switch S1 on
the rear of the MVP to correspond with the selected functions. OFF is in the
down position and ON is in the up position.
These DIP switches were set at the factory for given specifications and the
valve ordered. However, if more than one valve was ordered or the
controller specifications were unknown, you may have to reconfigure the
switches.
2.
Ensure that the valve and tubing are in place.
Caution: Operating an MVP without fluid in the valve for
extended periods of time reduces the life of the valve.
Before initialization, ensure that all tubing is in place
and that fluid enters the valve as soon as possible.
3–16
Digital MVP Operator's Manual
3.
Connect the MVP power adapter to the rear of the MVP.
4.
Plug the power adapter into a three-prong AC outlet. When the LED
illuminates, the MVP is ready for operation.
5.
Initialize the MVP by entering the appropriate command at the controller.
The initialize command will vary depending upon mode of communication
and the active high or active low status of the controller. For initialization
commands, refer to Table 3-3, 3-4, or 3-5 for discrete, binary or two-channel
sequential communication, respectively. One-channel sequential
communication requires that the user initialize the unit manually by pressing
the Initialize membrane switch on the front of the MVP unit.
Perform the initialization at power up to establish the home position of the
incremental optical encoder. During initialization of the MVP unit, the valve
positioner will rotate clockwise for 1.67 to 2.75 revolutions. Perform
initialization every time a valve is replaced to seat the valve properly. Also
initialize the MVP after any settings in DIP Switch S1 are altered to reestablish the home position.
6.
Enter commands on the controller to achieve the desired valve function.
Refer to Table 3-3, 3-4, or 3-5 for discrete, binary or two-channel sequential
commands, respectively. Remember to read the values in the table from
right to left as you enter the commands. If using one-channel sequential
communication, refer to section 3.3.2.3.3 for input values.
Section 3 Operating the Digital MVP
3–17
3.4 MVP Errors
MVP errors are of two types: command format errors or position errors. An MVP
error is indicated by a flashing front panel LED and a beep.
The following errors are characteristic of the digital MVP:
1.
Output line 5 (BUSY) becomes low,
2.
Output line 6 (ERR) becomes high, and
3.
Output lines 1-4 remain in standby mode.
3.4.1 Types of Errors
•
Command Format Errors occur when the unit receives one of the following
invalid commands:
1.
The MVP receives an invalid valve position command (for example, issuing a
position #4 command when DIP Switch S1 is configured for a 2-way valve).
2.
The Position Mode switch is on the undefined Open 1 or Open 2 setting
(invalid position mode).
3.
Switch block setting are improperly set.
When the MVP is in test mode or when the MVP is busy, it will ignore input
commands.
•
Position Errors are caused by a movement or encoder error (a stalled motor or
faulty encoder signal).
3–18
Digital MVP Operator's Manual
3.4.2 Correcting Errors
Most digital MVP command format errors are corrected by resetting the DIP Switch
S1 switches to their correct settings. Remember to disconnect the power cable before
resetting the switches. Reset the switches, power up, and initialize the unit.
Correct position errors by reinitializing the unit.
Section 3 Operating the Digital MVP
3–19
Section 4.
Maintaining the MVP
This section explains routine maintenance procedures that help
ensure proper operation of the MVP.
There are no user-serviceable parts inside the MVP.
Section 4 Maintaining the Digital MVP
4-1
4.1 Cleaning and Decontaminating the MVP
•
Always unplug the MVP when performing any maintenance or cleaning.
•
To reduce wear on the MVP valve, do not operate the MVP without fluid in the
valve.
•
Do not immerse the MVP in liquid.
•
The MVP is constructed from durable, chemically resistant materials. However,
some chemicals can stain and even soften the front membrane panel if not
immediately rinsed.
•
If a spill occurs on the MVP's exterior, follow these steps:
1.
Immediately wipe up the spill.
2.
Wash the area with water and soap. Dry the area.
3.
To disinfect the area, wipe down the MVP with a 10% chlorine bleach and
distilled water solution, SANI-CLOTH™ (Hamilton P/N 60545), or RBSVIRO® (a de-proteinizing detergent, Hamilton P/N 18309).
4.
Dry the area.
Avoid caustic or acid cleaning solutions. Using a bleach solution to wipe down the
front of the MVP is acceptable; avoid wiping down the rear of the MVP with a bleach
solution. Bleach will damage electrical connectors.
If valve and tubing are contaminated or if they come in contact with biohazard
samples, thoroughly purge and disinfect valve and tubing with a cleaning solvent
that is compatible with the fluids previously run though the system. To flush out
contaminates, follow safe laboratory practices in selecting and using a cleaning fluid.
Depending on the sample run, you may want to use deionized water, urea, ethanol,
or a bleach and water solution for cleaning.
4-2
Digital MVP Operator’s Manual
4.2 Periodic Maintenance
Frequency of cleaning depends upon the liquids you typically use and upon your use
of the MVP. If you use the MVP daily, purge the tubing and valve at the close of
each experiment and each work shift with deionized water (or other compatible
solution). Leave tubing and valve filled with liquid, with tube ends in beakers of
deionized water.
*
Note: Leaving buffers or salt solutions in the valve and tubing could
result in crystallization and blockage of tubing and permanent damage to
the valve *
At the conclusion of each work shift, disinfect the valve by pumping ethanol or a 10%
bleach solution through the valve and tubing.
If fluid paths contain aqueous solutions, flush the system by replacing the system
fluid container with a deionized water container and pumping several times the
system volume through each of the valve ports. Do not forget to clean ports that are
used infrequently.
If fluid paths contain non-aqueous solutions, flush the system with an intermediate
solvent. Then use deionized water as the system storage fluid. The system's cleaning
fluid may remain in the tubing overnight.
For long term storage, purge all tubing and all ports of the valve. Cycle air through
all tubing and ports until the system is dry. Cover the MVP to protect it from
damage.
Section 4 Maintaining the Digital MVP
4-3
4.3 Troubleshooting
The following table describes some commonly encountered problems, their probable
causes, and corrective procedures. There are no user-serviceable parts except for
valves and tubing.
Table 4-1. MVP Troubleshooting Chart
Problem
Possible cause
Corrective procedure
Instrument does
disconnected
Connect power supply to outlet, and check power
not power up
power supply or
source from outlet.
faulty power
outlet
MVP operates
normally,
faulty LED
but
Call Hamilton Company's Service Department.
( phone # 800-527-5269)
power LED is
not lit
LED is flashing
invalid
Check communications format.
command
valve overload
Reinitialize the instrument. If the problem persists
or error
call Hamilton Company's Service Department.
continued
4-4
Digital MVP Operator’s Manual
Table 4-1, continued
Problem
Possible cause
Corrective procedure
valve does not
disengaged
Reseat valve and reinitialize instrument.
rotate
valve drive
faulty valve
Replace valve.
Check for proper indexing pin setting
Remove valve from the MVP and initialize. If the
driver mechanism does not rotate during
initialization, call Hamilton Company Service
Department.
Wearing protective eye wear, remove tubing form
the ports of the valve and initialize. Look into any
valve port to see if it opens and closes during
operation. If it does not open and close, replace
the valve.
valve rotates,
faulty or
Check tubing for blockages, crimps, or loose
but no fluid
blocked tubing
fittings; replace tubing.
unmatched
Check switch block settings, and ensure they
valve and
match the installed valve table.
moves through
the valve
switch block
settings
communications
Disconnect cables and operate the MVP using
problems
front panel membrane keys; check and reset
system configurations; replace valve and tubing.
If all else fails, contact Hamilton Company
Service Department.
Section 4 Maintaining the Digital MVP
4-5
Section 5.
Ordering Valves, Accessories,
and Replacement Parts
This section provides information on valve configuration and flow
patterns, and provides part numbers for valves, accessories, and
replacement parts for the digital MVP.
Section 5 Ordering Valves, Accessories and Replacement Parts
5–1
5.1 Valve Configurations and Part Numbers
Table 5-1. Valve Configurations and Part Numbers for MVP Valves
Flow Diagram
5–2
Flow Description
Valve
Description
HVM
Part No.
HVXM
Part No.
180o Flow
1-1
36650
36723
90o Right Angle
2-2
36651
36724
"T" 3-port
3-3
36652
36799
90o Right Angle
3-2
36653
36756
4-port
4-4
36654
36757
90o Right Angle
4-2
36717
36780
"T" 3-port
4-3
36718
36779
Digital MVP Operator's Manual
Flow Diagram
Flow Description
Valve
Description
HVM
Part No.
HVXM
Part No.
180o Flow
4-1
36655
36796
2-way Distribution
1-5
36657
36714
2-way Distribution
2-5
36658
36722
3-way Distribution
3-5
36659
36758
4-way Distribution
4-5
36719
36759
6-way Distribution
6-5
N/A
36760
6-way Loop
6-6
N/A
36781
8-way Distribution
8-5
N/A
36766
8-way Loop
8-7
N/A
36782
Section 5 Ordering Valves, Accessories and Replacement Parts
5–3
5.2 Accessories and Replacement Parts
Table 5-2. Accessories and Replacement Parts for the
Digital MVP
Item Description
Part
Number
Digital MVP without Valve
36789
Communication Cable for Digital MVP
36682
Digital MVP Operator's Manual
69066
Power Adapter, 120VAC/24VDC, 500mA
6500025
Power Adapter, 220VAC/24VDC, 500mA
6500026
Power Cord for P/N 6500026
6541005
Universal Power Supply, 24VDC, 800mA
6500028
MVP Valve Porting Label Set
36778
5–4
Digital MVP Operator's Manual
5.3 MVP Configuration Table
Table 5-3. MVP Configuration Table and Part Numbers
Digital MVP
Part Number
120 VAC
77805
220 VAC
77806
Digital MVP with Valve (120VAC)
Part Number
HVM1-1
77825
HVXM1-1
77827
HVM2-2
77829
HVXM2-2
77831
HVM3-3
77833
HVXM3-3
77835
HVM3-2
77837
HVXM3-2
77839
HVM4-4
77841
HVXM4-4
77843
HVM4-2
77845
HVXM4-2
77847
HVM4-3
77849
HVXM4-3
77851
HVM4-1
77853
HVXM4-1
77855
HVM1-5
77861
continued
Section 5 Ordering Valves, Accessories and Replacement Parts
5–5
Table 5-3, continued
Digital MVP with Valve Description
Part Number
HVXM1-5
77863
HVM2-5
77865
HVXM2-5
77867
HVM3-5
77869
HVXM3-5
77871
HVM4-5
77873
HVXM4-5
77877
HVXM6-5
77879
HVXM6-6
77881
HVXM8-5
77883
HVXM8-7
77885
5–6
Digital MVP Operator's Manual
Glossary
active valve
A device that allows for diversion of liquid flow from input side to syringe, and from
syringe to output side.
air gap
A segment of air that is aspirated through the probe, used to separate different
liquids in the tubing lines. A typical air gap size is 20 to 50 microliters.
baud
A measurement of the speed at which information can be transmitted between
computer devices. If the baud rate is 9600, 9600 bits can be transmitted per second.
boot
To bring the operating system into computer memory to begin programming or
running a program.
cavitation
An occurrence caused by applying a high vacuum to a liquid (gas dissolved in liquid
can be pulled out of solution). It generally occurs when large syringes (5 and 10 ml)
are driven at high speeds (speed 5 or faster).
command
A sequence of letters, numbers, or other characters that represent an instruction a
computer transmits to an instrument during programming.
command string
A combination of computer commands.
cursor
A position indicator on a computer monitor that shows where to enter data or
change a character.
Glossary
GL–1
daisy chain
A string of instruments connected in a serial configuration.
default
A predetermined value in a program or in computer circuitry that an operator may
or may not alter.
diluent
A solution that is added to a sample to lessen the sample’s concentration (i.e., to
dilute the sample).
dispense
To deliver a volume of liquid through a probe tip.
download
To transfer information from one computer to another.
EEPROM
Electronically Erasable Programmable Read-Only Memory—a device that stores
downloaded information.
enter key
The “return” key on a computer keyboard is also referred to as the <Enter> key.
execute
To run a computer program or a method; to interpret machine instructions to
perform programmed operations.
fill
To pick up a programmable volume of liquid through the FILL tubing.
format
A predetermined value in a program or in computer circuitry that an operator may
or may not alter.
hardware echoed
Transmission of information from one piece of equipment to another via circuitry.
GL–2
Digital MVP Operator's Manual
inactive valve
A valve with one fixed flow passage; it cannot be used for flow distribution.
initialize
To establish the basic conditions for starting a process. An instrument initializes
before the PRIME function is activated or before a programmed procedure is run.
interface
A connection for linking major components to a computer. The SERIAL interface
connects a liquid handling station to a computer. The PARALLEL interface connects
a printer to a computer.
LED
Light Emitting Diode used in electronic displays.
method
A group of specific tasks that, when combined, form a complete assay preparation. A
method may consist of several subroutines, racks, and reagents.
power-down
To turn off an electrical device.
power-up
To turn on an electrical device.
prime
To make an instrument ready for operation. Fluid running through the tubing lines
of an instrument ensure that neither bubbles nor air gaps exist in the tubing. You
must prime the system before using it for the first time, at the start of a work day,
and between fluid changes.
probe
The needle or sampling device that picks up sample and reagent.
program
A coded set of instructions that a computer executes.
Glossary
GL–3
system fluid
Refers to the diluent or the fluid originating from a reservoir, pumped through the
diluters, and dispensed through the probe tip.
throughput
The rate of analysis, typically expressed as the number of samples analyzed per hour.
GL–4
Digital MVP Operator's Manual
Index
..............2-10, 2-11, 2-13, 5-2, 5-3, 5-5, 5-6
A, B, C
active high, active low ..................2-9, 3-1, 3-8,
initialization.......... 2-7, 3-1, 3-3, 3-4, 3-11, 3-13,
....... 3-9, 3-11, 3-12, 3-13, 3-14, 3-15, 3-16
..........3-14, 3-15, 3-16, 3-17, 3-19, 4-4, 4-5
binary .... 2-9, 3-2, 3-5, 3-8, 3-9, 3-12, 3-13, 3-17
input terminal block ..... 2-9, 3-5, 3-6, 3-9, 3-14
command format errors .................. 3-18, 3-19
L, M, N, O
correcting errors ..........................................3-19
LED/error indicator ............................. 2-4, 4-4
loop valve ............................................. 2-13, 5-3
D, E, F, G
digital input/output ports ................................
P, Q, R
................................ 2-8, 2-9, 3-5, 3-6, 3-10
position errors ................................... 3-18, 3-19
DIP Switch S1 ......................................................
power adapter ............. 1-3, 2-10, 3-4, 3-17, 5-4
.... 2-8, 3-3, 3-7, 3-9, 3-10, 3-12, 3-14, 3-16
Returned Goods Authorization Number . 1-4
discrete communication....................... 1-2, 2-9,
..............3-2, 3-5, 3-8, 3-9, 3-10, 3-11, 3-17
distribution valve ........................................2-13
errors2-4, 2-7, 3-1, 3-10, 3-18, 3-19, 4-4
S, T
sequential ..............................................1-2, 2-9,
...................... 3-2, 3-5, 3-8, 3-9, 3-14, 3-15, 3-17
standby mode .................................... 3-10, 3-18
H, I, J, K
test mode .................... 2-9, 3-8, 3-10, 3-16, 3-18
HVM and HVXM valves ..................... 1-1, 2-6,
TTL .................................... 1-2, 2-9, 3-1, 3-2, 3-9
Index
IN–1
tubing ................................................. 2-10, 2-11,
......................... 2-12, 3-3, 3-16, 4-2, 4-3, 4-4, 4-5
U, V, W, X, Y, Z
universal power supply ...................... 2-10, 5-4
valve connector port .................... 2-5, 2-6, 2-10
valve indexing pin ..............2-5, 2-6, 2-10, 2-11
valve position indicator ....................... 2-5, 2-6
IN–2
Digital MVP Operator's Manual