Presys DCY-2058 User manual

Presys
Auto-Manual / Auto / Manual Stations DCY-2058 / 2059
PRESYS
DCY-2058 AUTO /
MANUAL
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A
TECHNICAL MANUAL
Instruments
PRESYS
LD1
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PRESYS
DCY-2059 AUTO/MANUAL

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
EM0128-03
Table of Contents
1.0 - Introduction ..............................................................................................................1
1.1 - Description..............................................................................................................1
1.2 - Order Code Number...............................................................................................2
1.3 - Technical Specifications.........................................................................................3
2.0 - Installation ................................................................................................................4
2.1 - Mechanical Installation...........................................................................................4
2.2 - Electrical Installation...............................................................................................4
2.3 - Process Input Signal Connection ...........................................................................5
2.3.1 - Milliampere Input..............................................................................................6
2.3.2 - Voltage Input....................................................................................................7
2.4 - Output Signal Connection.......................................................................................8
2.5 - Connection Diagram...............................................................................................9
2.6 - Communication.....................................................................................................10
2.7 - Engineering Units .................................................................................................10
3.0 - Operation ................................................................................................................11
3.1 - Normal Operation.................................................................................................11
3.2 - Configuration ........................................................................................................13
3.2.1 - Level 1 - General ...........................................................................................17
3.2.2 - Level 2 - Input ................................................................................................20
3.2.3 - Level 3 - Output..............................................................................................22
3.2.4 - Level 4 - Calibration.......................................................................................25
3.2.5 - Level 5 - RS ...................................................................................................25
4.0 - Maintenance............................................................................................................26
4.1 - Station Hardware..................................................................................................26
4.2 - Hardware Configuration........................................................................................27
4.3 - Optional Module Connection................................................................................28
4.4 - Calibration.............................................................................................................30
4.5 - Hardware Maintenance Instructions.....................................................................34
4.6 - List of Components...............................................................................................36
4.7 - List of Recommended Spare Components ..........................................................39

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Introduction
Page 1
1.0 - Introduction
1.1 - Description
Presys Auto-Manual / Auto / Manual Stations are microprocessor-based
instruments for application in Instrumentation and Process Control.
They can communicate with computers by optional communication module
RS-232 or RS-422/485.
The Auto-Manual / Auto / Manual Stations have been designed according to
modularity and flexibility concepts. Both the Single Loop Station and Dual Loop Station,
have a variety of standard output types, such as: voltage (1 to 5V, 0 to 10V) and current
(4 to 20mA).
They are capable of monitoring two standard inputs: current (4 to 20 mA) and
voltage (1 to 5V and 0 to 10V).
A 24VDC voltage source, isolated and with short circuit protection, is provided for
transmitter power supply.
The type of input selected by the user is enabled by jumpers and by the software
configuration. All configuration data can be protected by a password system, and are
stored in the non-volatile memory in the event of a power failure.
They accept 90 to 240VAC or 130 to 340VDC (with any polarity) power supply.
Other ranges are also available.
Fig. 1 - DCY-2058/2059 Stations Front Panels.
The instruments are housed in an extruded aluminum case which makes them
highly immune to electrical noise, electromagnetic interference and resistant to the most
severe and rough industrial use conditions.
On the instrument front panels there are two red displays jointly configurable with
the decimal point for up to four high visibility digits. The function of the UP, DOWN and

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Introduction
Page 2
ENTER keys for changing output values is described in section 3.1. The A/M key on the
Stations front panel allows toggling between automatic and manual modes for the
Auto-Manual Stations. The green led in the A/M key indicates, when illuminated, the
Stations are in the manual mode and, when off, the Stations are in the automatic mode.
In configuration mode both displays show mnemonics and parameter values. The pair of
red leds are used as a visual indication that the input and output shown on the displays
refer to loop 1 or 2.
1.2 - Order Code Number
Note 1: DCY-2058/2059 Stations configuration is described in detail by this technical
manual and can be easily done by the user. If desired, specify the configuration
so that the instrument is configured at Presys.
Note 2: Other hardware and software features can be available under previous consult.
Code Example:
DCY - 2058 - 2 - 1 - 0 - 0
This code defines a dual loop station, with power supply in the 90 to 240VAC or
130 to 340VDC range, not using communication and intended for use in a sheltered
place.

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Introduction
Page 3
1.3 - Technical Specifications
Inputs:
• Two inputs configurable for 4 - 20mA (Rin = 250Ω), 1 - 5VDC (Rin > 10MΩ) and
0 - 10VDC (Rin > 2MΩ). Table 1 shows the resolution for the linear input sensors.
Input Sensor Range Resolution
0 to 5V 500μV
Voltage 0 to 10V 1mV
Current 0 to 20mA 2μA
Table 1 - Input Sensor Measuring Range
Outputs:
• One or two outputs for 4 - 20 mA (Maximum load of 750Ω), 1 - 5VDC and
0 - 10VDC. The outputs are galvanically isolated from inputs and power supply.
Serial communication:
RS-232 or RS-422/485 with isolation at 50VDC.
Indication:
Two red display sets with four digits which can be jointly configured with the
decimal point.
Configuration:
By front panel push-buttons and internal jumpers.
Scanning time:
Single loop station: 64ms, display updated each 0.5s.
Dual loop station: 120ms, display updated each 0.6s.
Accuracy:
±0.5% of full scale for input indication and output generation.
2-Wire Transmitter Power Supply:
24VDC voltage and 50mA maximum, isolated from outputs, with short-circuit
protection.
Power supply:
Universal 90 to 240VAC or 130 to 340VDC (any polarity), 10W nominal; 24VDC,
12VDC and other values are optional.
Operating ambient:
0 to 50°C temperature and 90% maximum relative humidity.
Dimensions:
1/8 DIN (48 x 96mm) and 162mm depth.
45 x 92 mm panel cutout.
Weight:
0.5kg approx.
Warranty:
One year.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 4
2.0 - Installation
2.1 - Mechanical Installation
The DCY-2058 and 2059 Stations front panels have 1/8DIN size (48 x 96mm).
They are fixed by the rails which press them against the back side of the panel.
After preparing a 45 x 92mm cut in the panel, remove the rails from the Station
and slide its rear through the cut until its front reaches the panel. Place the rails again in
the Station from the back of the panel and tighten the screws as shown in figure 2.
Fig. 2 - Dimensional drawing, panel mounting cutout and side view
2.2 - Electrical Installation
The DCY-2058 and 2059 Auto-Manual / Auto / Manual Stations may be powered
by voltage between 90 and 240VAC or 130 to 340VDC (any polarity); 24VDC, 12VDC
(for other models). Remember that the internal circuit is powered whenever the
instrument is connected to the external power supply.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 5
Input and output signals must be connected to the instrument only when it is
turned off.
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 - DCY-2058 and 2059 Station Terminals
2.3 - Process Input Signal Connection
The DCY-2058 and 2059 Auto-Manual / Auto / Manual Stations accept
connection to mA or V in their standard inputs. In order to know the input sensor types
and ranges refer to table 1, section 1.3 on Technical Specifications.
A certain type of input sensor is enabled by means of internal jumpers (refer
to section 4.2 on Hardware Configuration) and by the proper sensor selection in
configuration mode (refer to section 3.2 on Configuration). Therefore, the
connections explained below shall only become effective if the instrument
hardware and software are correctly configured.
The connection of a certain type of sensor in input 1 does not restrict the
simultaneous use of other sensor, of the same type or different, in input 2.
In order to avoid noise in the wiring, use twisted pair cable and pass sensor
connection wires inside a metallic tube or use shielded cable. Make sure to connect only
one shield wire end either to the negative terminal or to the earth ground of the sensor,
as shown in the next sections.
WARNING: GROUNDING TWO SHIELD WIRE ENDS MAY CAUSE NOISE IN THE
INSTRUMENT.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 6
2.3.1 - Milliampere Input
A standard 4 to 20mA current source can be applied between terminals 1(+) and
3(-) in case of input 1, and between terminals 4(+) and 6(-) in case of input 2; such
current can originate from an externally powered Transmitter. In the event that the
internal controller 24V voltage source is used to power a 2-wire Transmitter the current is
received only on terminal 1(+) in case of input 1 and received only on terminal 4(+) in
case of input 2. Figure 4 illustrates those two connection possibilities.
Fig. 4 - Current Source Connection

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 7
2.3.2 - Voltage Input
0 to 5VDC voltage must be applied between terminals 2(+) and 3(-) in case of
input 1 and between terminals 5(+) and 6(-) in case of input 2. 0 to 10VDC voltage must
be applied between terminals 1(+) and 3(-) in case of input 1 and between terminals 4(+)
and 6(-) in case of input 2. Those connections are illustrated in figure 5.
Fig. 5 - Voltage Source Connection

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 8
2.4 - Output Signal Connection
In their most complete versions (dual loop) the Stations can be provided with up
to two output signals: output 1 and output 2. Output 1 is used both in the dual loop and
single loop Stations. Output 2 is used only in the dual loop instrument depending on the
Station software configuration established by the user.
Outputs 1 and 2 provide three different types of analogic signal at the I/O
terminals: current (4 to 20mA), voltage (0 to 5VDC) and voltage (0 to 10VDC).
Note that the I/O terminals will only show output signals if the corresponding
optional module is installed and the output is correctly configured. Refer to sections 3.2
on Configuration and 4.3 on Optional Module Connection for further details on
installation and configuration of optional modules.
Fig. 6 - Output Connections

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 9
2.5 - Connection Diagram

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Installation
Page 10
2.6 - Communication
The DCY-2058 and 2059 Stations can communicate with computers via RS-232
or RS-422/485 since the communication optional module is installed and the
communication parameters are configured.
2.7 - Engineering Units
A label containing a selection of Engineering Units is supplied with each Station.
Select the one corresponding to the variable shown on the display and stick it on the
front panel of the Station.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 11
3.0 - Operation
3.1 - Normal Operation
The DCY-2058 and 2059 Auto-Manual / Auto / Manual Stations are provided with
two operational modes: normal operation mode and configuration mode.
In normal operation mode we can further have the automatic operation mode and
the manual operation mode, depending on the configuration of the Station. See
section 3.2.1 on General Level configuration.
In the automatic operation mode, the Station receives the input signal which is
retransmitted to the output. See section 3.2.3 on Output configuration.
In the manual operation mode, the user himself determines the output by using
the UP and DOWN keys to increase or decrease the analogic output value.
The selection between the automatic and manual modes is made through the
automatic/manual (A/M) key on the front panel of the DCY-2058 and 2059 Stations.
When in manual mode the green LED indicating the manual state is illuminated. The
Manual Station maintains the green led on and the A/M key has no function. The
Automatic Station maintains the green led off. The A/M key has no function too.
The normal operation mode of the stations, in which they operate most of the
time, will be named level zero. In this level the upper display can show the following
messages:
- ‘OUT1’ in single loop Stations,
- ‘OUT1’ or ‘OUT2’ according to the loop selected in dual loop Stations, and
- ‘CONF’.
The lower display shows the value of the selected analogic output (V_OUT 1 or
V_OUT 2), given in engineering unit.
When the input is enabled, the upper display shows the value of the input signal
(PV.1 or PV.2) in place of OUT1 or OUT2 mnemonics.
Whenever the Stations are powered on, they display the last selection shown
before they were turned off. In order to switch to other options of the operation level, use
the ENTER key, as illustrated in figure 7.
Figure 7, below, illustrates all these display presentations possibilities at the
operation level for the DCY-2058 and 2059 Stations.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 12
Operation Level
Fig. 7 - Operation Level Options
At the operation level, the keys on the Auto-Manual Station front panel have the
following functions:
Tecla Função
A/M Switches from automatic mode to manual
mode and vice-versa.
UP
Increases the output value when in manual
mode and has no function in the automatic
mode.
DOWN
Decreases the output value when in manual
mode and has no function in the automatic
mode.
ENTER Change the options presented on the display.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 13
The keys on the Manual Station front panel have the following functions:
Tecla Função
A/M No function.
UP Increases the output value.
DOWN Decreases the output value.
ENTER Changes the options presented on the display.
The keys on the Automatic Station front panel have the following functions:
Tecla Função
A/M No function.
UP No function.
DOWN No function.
ENTER Changes the options presented on the display.
In order to have access to the configuration levels described in the following
sections, one should change the display to the CONF option.
3.2 - Configuration
The DCY-2058 and 2059 Stations can be configured with a password system to
prevent unauthorized people from altering critical process parameters.
Therefore, whenever the UP key is pressed while the CONF mnemonic
(Configuration) is shown on the upper display, one of the following cases may occur
depending on configuration:
i) To enter level 1 (GENERAL) of configuration mode directly, indicating that the
instrument was not configured with the password system.
ii) The display shows the password mnemonic, indicating that the instrument is provided
with a password system which can be either by key or by value, as illustrated on figure 8.

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 14
Fig. 8 - Password System by Key and by Value
In case of password by key, the user should press the UP, DOWN and ENTER
keys in sequence to enter the configuration levels.
In case of password by value the user should press the ENTER key a second
time to obtain the display of number 0000 with the last digit flashing on the right. The
flashing digit indicates the position where the digit of a 4-digit number will be entered by
the user. In order to move to the other digits to the left of the number one should press
the ENTER key. After entering all digits, press once more the ENTER key to switch to
level 1 in case the password is correct; otherwise, the system reverts to normal operation
mode (see figure 8).
The user may even select both password systems, by key and by value. In this
case, if upon receiving a request for a password the user enters a wrong key sequence
he will be immediately reverted to password by value.
The password may be a number selected by the user (customized), or the
number 2058 or 2059 according to the Station model. Note that in case of password by
value the number 2058 or 2059 (for each Station model) is always enabled, to help the
user in case one does not remember the password. In order to enter a password number
or any other parameter value, use the Station front keys which have the following
functions:
Key Function
UP Increases the digit
DOWN Decreases the digit
ENTER Moves to digit on the left
All configuration parameters are stored in the non-volatile memories (E2PROM
and NVRAM) and determine the instrument normal operation. Through configuration
parameters the user may adapt the instrument according to his requirements. Normally
the DCY-2058 and 2059 Stations are factory configured and the user is not expected to
enter the configuration mode. However, nothing prevents the user from reconfiguring the
instrument in case a new application so requires. This is made possible in view of the

Presys
PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 15
great variety of operation modes and the universal characteristics of the two inputs in the
DCY-2058 and 2059 Stations.
The configuration parameters are distributed over 5 increasing hierarchical levels
as shown in figure 9.
In order to go through those levels and to have access to their corresponding
parameters use the instrument front keys, which have the following functions:
Key Function
ENTER Enters into a level
UP Switches to a higher level
DOWN Switches to a lower level
Note: in the following diagrams, the Station displays are represented by rectangles in
response to the selection of ENTER, UP and DOWN keys.
Fig. 9 - Diagram of Parameter Levels

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 16
The hierarchical levels are shown below. A step by step explanation is given for
the options in each level, with all the corresponding parameters.
Within each level, the instrument front panel keys have the following functions:
Tecla Função
UP Scrolls the options in ascending order
DOWN Scrolls the options in descending order
ENTER Confirms or advances the options within the level
whenever the display does not show ESC. When
ESC is shown on the display, it goes back one or
more positions
Note: When accessing any parameter of the configuration level, the Station shows the
option or value corresponding to the current configuration of the parameter.

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
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3.2.1 - Level 1 - General
In level 1 we have the options: TAG, SOFT, PASS, TYPE and ST.CO (see
figure 10).
Fig. 10 - GENERAL Level Options

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PRESYS ⏐Instruments DCY-2058 and DCY-2059
Operation
Page 18
TAG - this option is a numeric identification for the instrument. The procedure to
enter the tag or any other parameter is the same as for the previously described
password (see the functions of the ENTER, UP and DOWN keys on Configuration
section).
SOFT - shows the number of the software version.
PASS - an option used for entering a password system giving access to the
configuration mode. The password system may be entered by key, by value (a number
selected by the user or the numbers 2058 or 2059, according to the Station model) or
both. As previously explained, the sequence for entering a password by key is to press
the UP, DOWN and ENTER keys, in this order.
TYPE - This option configures the channel of the instrument as a Manual,
Automatic or Auto-Manual Station. The dual loop station can be configured as a single
loop, provided that the undesirable channel is disabled (option ANNUL).
Note: The instrument is specified as a single or dual Station in the order code which
determines the number of analogic output modules installed in the instrument at
factory. The single loop Station does not have options CH-1 and CH-2 in the
configuration menu as it refers always to the channel 1.
In the Manual Station, the output works only in manual mode, that is, the user
himself determines the output by using the UP and DOWN keys. In the Automatic
Station, the output works only in automatic mode and the output always retransmits the
input signal. In the Auto-manual Station, the output works in both modes. The selection
between the automatic and manual modes is made through the A/M key. The
transference from the automatic mode to the manual mode is bumpless, that is, the
output value remains at the same value it was prior to the transference.
Note: The instrument is adjusted at factory for the specific output module which is
installed. Thus any change of the output modules – due to maintenance with
component replacement, change or acquisition of new modules - requires a new
adjusting process. See section 4.3 on Optional Module Connection.
ST.CO - this option allows the selection of the mode in which the Stations should
return after a power failure. If the mnemonic LAST is selected for the ST.CO option, the
Station will return to the same configuration it was operating prior to the power failure
(manual or automatic). When the MANL option is selected for the ST.CO option, the
Station will always return to the manual mode after a power failure, with the output level
being determined by the MANL parameter. The MANL parameter is user adjustable.
The configuration of the instrument as an Auto-Manual Station, for instance, is
established by the TYPE option. Enable the option by choosing the AUTO/MAN
mnemonic after selecting the corresponding loop (or channel).
In GENERAL level, use the UP and DOWN keys until the TYPE option is reached:
press ENTER, select channel 1 or 2, press ENTER again, and finally select the type
desired for the station (AUTO/MAN).