Presys DMY-2030-TOT Light User manual

DMY-2030-TOT Process Indicator and TotalizerLight
Instruments Inc.
PRESYS
TECHNICAL MANUAL
PRESYS
DMY-2030-TOT
LD1 LD2
Light
presys

Declaration of Conformity
Presys Instruments
Presys unit DMY-2030-TOT Light has been designed to comply with the following
European Standards:
EN 50081-1: 1992 Electromagnetic Compatibility - Generic emission standard.
EN 50081-2: 1994
EN 50082-1: 1992 Electromagnetic Compatibility - Generic immunity standard.
EN 50082-2: 1995 (Performance criterion B).
EN 61010-1: 1993 Safety Considerations
I have made all reasonable enquiries regarding the unit stated and their conformance
to the EU, Low Voltage and EMC Directives. To the best of my knowledge and belief
this unit conform to these directives.
This Declaration is controlled under an ISO 9001:2000 system certificated by TÜV
Rheinland, certificate number CE, SIQ - 558 - Revision 10.
Signature
Name R. W. Silva
Position Manager
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PRESYS Instruments DMY-2030-TOT Light
EM0105-02
TABLE OF CONTENTS
1.0 - Introduction ............................................................................................................1
1.1 - Description............................................................................................................1
1.2 - Order Code...........................................................................................................2
1.3 - Technical Specifications........................................................................................3
2.0 - Installation ..............................................................................................................6
2.1 - Mechanical Installation..........................................................................................6
2.2 - Electrical Installation .............................................................................................6
2.3 - Process Input Signal Connection..........................................................................7
2.3.1 - Milliampere Input............................................................................................8
2.3.2 - Volt or Millivolt Input .......................................................................................9
2.4 - Output Signal Connections ...................................................................................9
2.5 - Connection Diagram ...........................................................................................11
2.6 - Communication...................................................................................................12
2.7 - Engineering Units................................................................................................12
3.0 - Operation ..............................................................................................................13
3.1 - Normal Operation................................................................................................13
3.2 - Configuration.......................................................................................................14
4.0 - Maintenance..........................................................................................................27
4.1 - Indicator Hardware..............................................................................................27
4.2 - Hardware Configuration......................................................................................28
4.3 - Snubber use for relay..........................................................................................29
4.4 - Option Module Connection..................................................................................30
4.5 - Calibration...........................................................................................................34
4.6 - Hardware maintenance instructions....................................................................39
4.7 - List of components..............................................................................................41
4.8 - List of recommended spare components............................................................44
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PRESYS Instruments DMY-2030-TOT Light
Introduction
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1.0 - Introduction
1.1 - Description
PRESYS DMY-2030-TOT Light Indicator and Totalizer is a microprocessor-based
instrument that shows industrial process variables such as pressure, flow, level, etc. and
totalizes the indication values. It has non-volatile internal memory (E2PROM) to store
calibration values. Its high accuracy is warranted by autocalibration techniques based on
high thermal stability voltage reference.
It can communicate with computers by using the optional RS-232 or RS-
422/485 communication module.
The Indicator is able to monitor one input and accepts direct connection of current
(mAdc) and voltage (mVdc, Vdc). There is a 24Vdc voltage source isolated from output
and with short-circuit protection in order to supply transmitters.
The totalization is performed with 8-digit count, configured together with the
number of decimals. The totalization counts do not decrease for signals under the zero
scale defined by the user, and Reset can be applied to the totalization by means of the
Indicator front-panel keys or by the contact input.
Input type is enabled by jumpers and software configuration. All configuration data
is stored in non-volatile memory and can be protected by password.
According to modularity concept design, the equipment accepts up to four output
cards. The output types are: retransmittion, SPDT relay, SPST relay and solid state
relay. The outputs are isolated from the input.
It accepts 90 to 240VAC or 130 to 340VDC (with any polarity) power supply.
Fig. 1 - DMY-2030-TOT Light Indicator and Totalizer Front Panel
The equipment has an extruded aluminum case which avoids electrical
noise, electromagnetic interference, radiofrequency interference, etc. and its robust
construction makes it tough enough for the most hostile environment.
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PRESYS Instruments DMY-2030-TOT Light
Introduction
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The front panel has a high visibility display configurable up to 8 digits which can
show the process variable, using 4 ½ digits, and the totalization. During configuration, the
display shows mnemonics and parameter values. The leds and the display can be used
as a visual indication of alarm or they can be associated to the alarm outputs. So, there
are up to seven alarm indications available (four alarm modules together with the display
and leds). The alarm outputs can be configured, independently, to operate with latch,
demanding the operator acknowledge by means of the front panel keys in order to
deactivate them after the process variable returns to normal condition.
One retransmitter output is available to provide a linear output signal from 4 to 20
mA, 1 to 5V or 0 to 10V proportional to the input process variable being measured. This
signal allows the retransmittion of the variable to a distant location. When using the
analog output, up to three alarm modules can be used.
1.2 - Order Code
DMY-2030-TOT Light
-
A
-
B
-
C
-
D
-
E
-
F
-
G
Field A Output 1
0 Not used
1 4 to 20mA
2 1 to 5V
3 0 to 10V
4 SPST relay
5 Open collector voltage
6 Solid state relay
Field B Output 2
0 Not used
1 SPST relay
2 Open collector voltage
3 Solid state relay
Field C Output 3
0 Not used
1 SPDT relay
2 Open collector voltage
3 Solid state relay
Field D Output 4
Same code of Output 3
Field E Power Supply
1 90 to 240VAC or 130 to 340VDC (any polarity)
2 24VAC or 24VDC
3 12VDC
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PRESYS Instruments DMY-2030-TOT Light
Introduction
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Field F Communication
0 Not used
1 RS-232
2 RS-485
3 RS-422
Field G Case Protection Grade
0 General usage, protected place
1 Front aspersion-proof
2 Weather-proof
Note 1 - Range and input type, indication, totalization parameters, relay usage as alarms
and alarm setpoints are, among other things, items that the user can program through
the front panel keys (if wanted, specify such information so that all the configuration can
be made by PRESYS).
Note 2 - Other hardware and software features can be available under previous consult.
Code example:
1) DMY - 2030 - TOT Light - 0 - 0 - 1 - 1 - 1 - 0 - 0
This code defines a DMY-2030-TOT Light Indicator and Totalizer with two SPDT
relays which can be used as high and low alarms, 90 to 240VAC or 130 to 340VDC
electric power supply, protected field usage.
1.3 - Technical Specifications
Input:
One input configurable for 4 to 20 mA, 0 to 55 mVdc, 1 to 5 Vdc, 0 to 10 Vdc.
250 input impedance for mA, 10 Mfor 5 Vdc and 2 Mabove 5 Vdc. Table 1
shows the resolution for linear input sensors.
Contact input to reset totalization.
Input sensor
Range
Resolution
Voltage
0 to 55mV
3V
0 to 5V
250V
0 to 10V
500V
Current
0 to 20mA
1A
Table 1 - Measuring ranges for input sensors
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PRESYS Instruments DMY-2030-TOT Light
Introduction
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Outputs:
4 to 20 mA, 1 to 5 Vdc, 0 to 10 Vdc Analog Retransmitter, with connection of one
optional module galvanically isolated of 300Vac from power supply and input.
SPDT relay for alarm rated for 3A at 220Vac, or 10A at 220Vac under order. In
this case alarm module is not connected, but soldered to the board. Connection
for up to four modules (using both analog output connectors). In case of using the
analog output, one can use three alarm modules.
Logic signal, open collector transistor, 24 Vdc, 40 mA maximum with isolation.
Solid state relay rated for 2A at 250Vac with isolation.
Serial Communication:
RS-232 or RS-422/485, 50 Vdc isolation, optional module connected to the CPU
Board.
Indication:
Indication with -999 to 19999 range.
Totalization:
Input totalization with 0 to 99999999 range, configured with decimal point.
Configuration:
By front-panel pushbuttons and internal jumpers.
Sampling rate:
130 ms for input indication in -999 to 19999 range. The display is updated each
second for the indication and each scan for the totalization.
Accuracy:
0.1 % of full scale for mA, mV, Vdc input.
0.5 % of full scale for analog retransmitter output, 750 maximum load.
Square root extraction:
0.5 % of reading, for input above 10 % of span. 0 to 5 % of programmable Cut-
off.
Thermal stability:
0.005 % / °C of span for 25°C ambient temperature.
Power supply:
90 to 240VAC or 130 to 340VDC (any polarity), 10W nominal; 24VDC, 12VDC and
other values are optional.
2-wire transmitter power supply:
24VDC voltage and 50mA maximum, isolated from output, short-circuit protection.
Operating ambient:
0 to 50 °C temperature and 90 % maximum relative humidity.
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PRESYS Instruments DMY-2030-TOT Light
Introduction
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Dimensions:
1/8 DIN (48 X 96 mm) with 162 mm depth, panel cutout of 45 X 92 mm.
Weight:
0.5 kg approx.
Warranty:
One-year warranty.
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PRESYS Instruments DMY-2030-TOT Light
Installation
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2.0 - Installation
2.1 - Mechanical Installation
DMY-2030-TOT Light Indicator and Totalizer front panel has 1/8 DIN size
(48 X 96 mm).
It is fixed by the rails which press it against the back side of the panel.
After preparing a 45 X 92 mm cut in the panel, remove the rails from the
Indicator and slide its rear through the cut until its front reaches the panel. Place the
rails again in the Indicator from the back of the panel and tighten the screws as
shown in figure 2.
Fig. 2 - Dimensional drawing, panel cutout and side view.
2.2 - Electrical Installation
DMY-2030-TOT Light Indicator and Totalizer may be powered by voltage
between 90 and 240VAC or 130 to 340VDC, any polarity. Remember that the
internal circuit is powered whenever the instrument is connected to the external
power supply.
Input and output signals must be connected to the instrument only when it is
turned off.
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Figure 3 shows the instrument rear terminals for connection of power supply,
ground, communication, process input and output signals.
Signal wiring must be kept far away from power wires.
Due to its metal case the instrument ground should be connected to earth
ground. Never connect the ground to neutral terminal.
Fig. 3 - Indicator Terminals
2.3 - Process Input Signal Connection
The Indicator input can be connected to current (mA) or voltage (V or mV).
See the different types and ranges of input sensors in table 1, section 1.3 on
Technical Specifications.
The input sensor is enabled by internal jumpers (see section 4.2 on
Hardware Configuration) and by selection of the sensor in the software (see
section 3.2 on Configuration). The connections explained below will have the
desired result only if the instrument is correctly configured by software and
hardware.
In order to avoid noise in the wiring, use twisted pair cable and cross sensor
connection wire inside a metallic tube or use shielded cable. Make sure to connect
only one shield wire end either to board terminal or to sensor ground, as shown in
the next items.
WARNING: GROUNDING TWO SHIELD WIRE ENDS MAY CAUSE NOISE IN THE
INDICATOR.
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Installation
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2.3.1 - Milliampere Input
A current source of 4 to 20 mA is applied to terminals 1(+) and 3(-). The
current signal can be generated by a transmitter with an external power supply. In
case of using the 24 VDC internal voltage source from the Indicator to power a two-
wire transmitter, the current is received only by terminal 1(+). Figure 4 shows both
possibilities of connection.
Fig. 4 - Milliampere Input
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PRESYS Instruments DMY-2030-TOT Light
Installation
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2.3.2 - Volt or Millivolt Input
0 to 55 mVDC or to 0 to 5 VDC must be applied to terminals 2 (+) and 3 (-). 0
to 10 VDC must be applied to terminals 1(+) and 3(-). The connections are shown in
figure 5.
Fig. 5 - Volt or millivolt Input
2.4 - Output Signal Connections
The Indicator can have up to four output signals: output 1, output 2, output 3
and output 4. Output 1 is used as retransmitter or alarm output. Outputs 2, 3 and 4
are used only as alarm outputs.
For output 1, there are six different types of outputs available: retransmitter
(4 to 20mA, 0 to 5Vdc or 0 to 10Vdc), SPST relay, open collector voltage and solid state
relay.
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PRESYS Instruments DMY-2030-TOT Light
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For outputs 2, 3 and 4, there are three different types of outputs: SPST
(output 2) or SPDT (outputs 3 and 4) relay, open collector voltage and solid state
relay. Figure 6 shows the Indicator output types.
Note that the output terminals will present the corresponding signals
only if the optional modules are installed and the output is correctly
configured. For analog outputs, refer to section 3.2 on Configuration and
section 4.4 on Optional Module Connection for details on installation and
configuration of optional modules.
(*) Relay contact states shown are valid for SAFE option selected (see section 3.2 on Configuration), instrument
powered on and non-alarm condition. Positions of the contacts are changed in alarm condition (with SAFE option
selected) or when the instrument is turned off.
Fig. 6 - Output Connection
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PRESYS Instruments DMY-2030-TOT Light
Installation
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2.5 - Connection Diagram
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Installation
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2.6 - Communication
DMY-2030-TOT Light Indicator and Totalizer communicates with computers
through RS-232 or RS-422/485 using MODBUS protocol communication software,
when the optional communication module is installed and the communication
parameters are configured.
Specific information on communication and signal connection is described in
the communication manual.
2.7 - Engineering Units
A label with several Engineering Units is supplied with each Indicator. Select
the one corresponding to the variable shown on the display and stick it to the front
panel of the Indicator.
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PRESYS Instruments DMY-2030-TOT Light
Operation
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3.0 - Operation
3.1 - Normal Operation
DMY-2030-TOT Light Indicator and Totalizer has two modes of operation:
normal operation and configuration mode.
During normal operation, the Indicator monitors the input and shows the
totalization, verifies alarm conditions and activates the four outputs if necessary.
Configuration mode is used to select and configure all the Indicator
parameters.
The normal operation mode, in which the Indicator is to be found most of the
time, is called level zero. In this level, the three front panel keys have the following
functions:
ENTER Key Changes level zero to level 1 or asks for the
password, when configured.
DOWN Key Changes the indication presented on the display. When
the process variable is shown, after pressing the DOWN
key, the display presents the totalization. By pressing
again the DOWN key, the indication is shown.
UP Key When showing the indication, it presents the alarm
outputs which require acknowledgment to return to normal
state (*). When showing the totalization, it allows
accessing a menu with options for configuring the preset
mode (automatic or manual) and preset setpoint, alarm
setpoints for the indication alarms already configured,
besides applying reset to totalization and to the
accumulated totalization (**).
(*) In order to view the monitored variable, continue to press the UP key. In
case there are no activated relays, the No.Ac. message will be shown.
(**) The presentation of each one of these options (RESET, SP, MODE,
AC.TOT. and ALARM mnemonics) in the operation level is configured by the user in
the OPER option in GENERAL configuration level. See figure 7 where all the options
are selected.
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PRESYS Instruments DMY-2030-TOT Light
Operation
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Fig.7 - Options of the operation level with configurable presentation
3.2 - Configuration
In order to access configuration mode the operator is required to provide a
password which avoids a non-authorized person to change any critical parameters of
the process.
So, when ENTER is pressed within the normal operation mode, one of the
following events can happen, depending on the current configuration:
i) To access directly level 1 (GENERAL) of configuration mode, which indicates the
instrument was not configured with a password system.
ii) To display the PASS warning, indicating that the instrument is provided with a
password system (a key sequence or a value), according to figure 8.
Fig. 8 - Password through key sequence or value
In case of a key sequence password, the user should press the UP,
DOWN and ENTER keys (exactly in this order) to access the configuration levels.
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Operation
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For a value password, the user must press the ENTER key for a second time in
order to view the number 00000 with the right end digit blinking. The position which is
blinking indicates the digit in the number to be changed by the user with the UP and
DOWN keys. Move to the digits on the left by pressing ENTER. After entering all digits,
press ENTER again. If the password is correct level 1 is accessed; otherwise, it returns
to normal operation (see figure 8).
The user can choose also both password systems, key and value. In this
case, if the user provides an incorrect sequence of keys, the display goes
immediately to the value password system.
The password number may be chosen by the user (personal) or it could be
used the number 2030. Note that the number 2030 is always accepted by the value
password system, which helps the user in case he forgets his password. In order to
enter a number for password or for any other parameter use the Indicator front panel
keys with the following functions:
UP key Increases values being set
DOWN key Decreases values being set
ENTER key Changes position to the left digit
The procedure above is valid for providing any other parameter with 5 digits.
The only exception is COUNT parameter, in Totalization level, for which it is possible
to change all the 8 digits of the display.
All configuration parameters are stored in the non-volatile memory and
determine the normal operation of the instrument. With these parameters the user
can adjust the instrument to his needs, when it is necessary to change the
configuration from factory.
Configuration parameters are distributed in seven hierarchical levels shown in
figure 9.
In order to move through the levels and access the parameters of any one of
them, use the front panel key which have the following functions:
ENTER key Moves into the indicated level
UP key Moves to higher levels
DOWN key Moves to lower levels
Warning: In the diagrams below, the rectangles represent the display
appearance after selection of the ENTER, UP and DOWN keys.
The hierarchical levels are presented in sequence. The options of each level
are explained step by step with all their corresponding parameters.
Inside each level, the front panel keys have the following functions:
UP key Moves the options in increasing direction
DOWN key Moves the options in decreasing direction
ENTER key Confirm or advance options inside a
level, if the display does not show ESC.
When ESC is shown, it goes back
one or more positions.
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Fig. 9 - Parameter levels diagram
Level 1 - General
Level 1 presents the options: TAG, SOFT, PASS, INDC and OPER (see figure
10).
TAG - consists in an numeric identification for the instrument. The procedure
to enter the tag or any other parameter is the same as described previously for the
password (refer to value password for the functions of the ENTER, UP and DOWN
keys).
SOFT - shows software version.
PASS - allows the user to enable or disable the password system for
accessing the configuration mode. The password system may be chosen as a key
sequence, a value (number chosen by the user and number 2030) or both. The
correct key sequence is obtained by pressing the UP, DOWN and ENTER keys in
this order.
INDC - is an option for the visualization of the measured variable and
totalization on the display. It allows the user to view the values of the indication and
totalization only by pressing the UP and DOWN keys, or it sets the instrument to
change automatically the indication and totalization. In order to enable the automatic
scan mode, choose the YES option for INDC and provide the exhibition times (given
in seconds).
OPER - enables the presentation of each one of its options in operation level,
namely, RESET (reset of the totalization and accumulated totalization), SP (preset
setpoint), MODE (reset mode for preset), AC.TOT. (indication of accumulated
totalization) and ALARM (alarm setpoints). OPER also presents the RESET.REM option
which enables the use of the contact input to reset the totalization.
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Fig. 10 - GENERAL level options
The table below refers to the ranges of the parameters shown in figure 10.
Mnemonic
Parameter
Range
Factory
Value
Units
TAG
instrument
identification
0 to 30000
2030
____________
SOFT
software version
_______________
1.41
____________
VALUE
user password
-9999 to 30000
0
____________
TIME1
process variable
exhibition time
0 to 3000
5
seconds
TIME2
totalization
exhibition time
0 to 3000
1
seconds
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