Orbit Merret OM 402PID Manual de usuario
OM 402PID
4 DIGIT PROGRAMMABLE
UNIVERSAL PID REGULATOR
INPUT
DC/PM/OHM/PT/NI/TC/POTENTIOMETER
WARRANTY
YEARS
TECHDOK - OM 402PID - 2015 - 3v0 - en
2| INSTRUCTIONS FOR USE OM 402PID
SAFETY INSTRUCTIONS
Please, read the enclosed safety instructions carefully and observe them!
These instruments should be safeguarded by isolated or common fuses (breakers)!
For safety information the EN 61 010-1 + A2 standard must be observed.
This instrument is not explosion-safe!
TECHNICAL DATA
Measuring instruments of the OM 402 series conform to the European regulation 89/336/EWG.
The instruments are up to the following European standards:
EN 61010-1 Electrical safety
EN 61326-1 Electronic measuring, control and laboratory devices – Requirements for EMC “Industrial use”
Seismic capacity:
IEC 980: 1993, čl. 6
The instruments are applicable for unlimited use in agricultural and industrial areas.
CONNECTION
Supply of energy from the main line has to be isolated from the measuring leads.
ORBIT MERRET, spol. sr.o.
Vodnanska 675/30
19800 Prague 9
Czech Republic
Tel: +420 - 281040200
Fax: +420 - 281040299
e-mail: [email protected]
www.orbit.merret.eu
INSTRUCTIONS FOR USE OM 402PID | 3
1.CONTENTS
1. CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. INSTRUMENT DESCRIPTION . . . . . . . . . . . . . . . . . . . 4
3. INSTRUMENT CONNECTION. . . . . . . . . . . . . . . . . . . . 6
Measuring ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Termination of RS 485 communication line . . . . . . . . 6
Instrument connection . . . . . . . . . . . . . . . . . . . . . . . . . 7
Recommended connection of sensors . . . . . . . . . . . 8
4. INSTRUMENT SETTING . . . . . . . . . . . . . . . . . . . . . . 10
Symbols used in the instructions . . . . . . . . . . . . . . . 12
Setting the DP and the (-) sign . . . . . . . . . . . . . . . . . 12
Control keys function . . . . . . . . . . . . . . . . . . . . . . . . . 13
Setting/permitting items into “USER” menu . . . . . . . 13
5. SETTING “LIGHT” MENU . . . . . . . . . . . . . . . . . . . . . .14
5.0 Description “LIGHT” menu . . . . . . . . . . . . . . . . . . . 14
Setting input - Type “DC” . . . . . . . . . . . . . . . . . . . . . . 18
Setting input - Type “PM” . . . . . . . . . . . . . . . . . . . . . .20
Setting input - Type “OHM” . . . . . . . . . . . . . . . . . . . . .22
Setting input - Type “RTD - Pt” . . . . . . . . . . . . . . . . . .24
Setting input - Type “RTD - Ni” . . . . . . . . . . . . . . . . . . 26
Setting input - Type “T/C” . . . . . . . . . . . . . . . . . . . . . .28
Setting input - Type “DU” . . . . . . . . . . . . . . . . . . . . . .30
Setting input - Type “RTD - Cu” . . . . . . . . . . . . . . . . . 32
Setting controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Setting analog output . . . . . . . . . . . . . . . . . . . . . . . . .40
Selection of programming menu „LIGHT“/„PROFI“ . . 42
Restoration of manufacture setting . . . . . . . . . . . . . 42
Calibration - input range (DU). . . . . . . . . . . . . . . . . . . 43
Selection of instrument menu language version . . 44
Setting new access password . . . . . . . . . . . . . . . . . 44
Instrument identification . . . . . . . . . . . . . . . . . . . . . . . 45
6. SETTING “PROFI” MENU. . . . . . . . . . . . . . . . . . . . . . 46
6.0 Description of “PROFI” menu . . . . . . . . . . . . . . . . . 48
6.1 “PROFI” menu - INPUT
6.1.1 Resetting internal values. . . . . . . . . . . . . . . . . 48
6.1.2 Setting measuring type, range, mode, rate. . 49
6.1.3 Setting the Real Time . . . . . . . . . . . . . . . . . . .55
6.1.4 External input function selection . . . . . . . . . .55
6.1.5 Optional accessory functions of the keys . . 56
6.2 “PROFI” menu - CHANNEL
6.2.1 Setting measuring parameters (projection, filters,
decimal point, description). . . . . . . . . . . . . . . .60
6.2.2 Setting controls . . . . . . . . . . . . . . . . . . . . . . . .63
6.2.3 Selection of evaluation of min/max. value . . 67
6.3 “PROFI” menu - OUTPUT
6.3.1 Setting data logging. . . . . . . . . . . . . . . . . . . . .68
6.3.2 Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6.3.3 Setting data output . . . . . . . . . . . . . . . . . . . . . 75
6.3.4 Setting analog output . . . . . . . . . . . . . . . . . . . 76
6.3.5 Selection of display projection . . . . . . . . . . . . 78
6.4 “PROFI” menu - SERVICE
6.4.1 Selection of programming menu
„LIGHT“/„PROFI“ . . . . . . . . . . . . . . . . . . . . . . . .80
6.4.2 Restoration of manufacture setting. . . . . . . . 81
6.4.3 Calibration - input range (DU) . . . . . . . . . . . . .82
6.4.4 Selection of instrument menu
language version . . . . . . . . . . . . . . . . . . . . . . . 82
6.4.5 Setting new access password . . . . . . . . . . .82
6.4.6 Instrument identification . . . . . . . . . . . . . . . . .83
6.5 “PROFI” menu - PROGRAMM
6.5.1 Selection of launching a program . . . . . . . . . 84
6.5.2 Selection of parameters . . . . . . . . . . . . . . . . .85
6.5.3 Selection of programming steps . . . . . . . . . .86
7. SETTING ITEMS INTO “USER” MENU . . . . . . . . . . . . 88
7.0 Configuration “USER” menu . . . . . . . . . . . . . . . . . .88
8. METHOD OF MEASURING OF THE COLD JUNCTION. 90
9. ERROR STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . .91
10. DATA PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . 92
11. TECHNICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . 94
12. INSTRUMENT DIMENSIONS AND INSTALATION . . . . 96
13. CERTIFICATE OF GUARANTEE. . . . . . . . . . . . . . . . . .97
4| INSTRUCTIONS FOR USE OM 402PID
2. INSTRUMENT DESCRIPTION
2.1 DESCRIPTION
OM 402PID is a 4-digit versatile panel mount PID regulator designed for maximum fl exibility and user comfort while maintaining
a low price.
Type OM 402PID is a multifunction instrument with the option of confi guration for 8 various input options, easily confi gurable in
the instrument menu. In its basic confi guration the OM 402PID has two regulatory relays and two relay alarm outputs. Desired
value can either be constant, or defi ned by one of 14 programmes.
The instrument is based on a 8-bit microcontroller and a multichannel 24-bit sigma-delta converter, which secures high accuracy,
stability and easy operation of the instrument.
MEASURING RANGES
UNI DC: 0…60/150/300/1200 mV
PM: 0…5 mA/0…20 mA/4…20 mA/±2 V/±5 V/±10 V/±40 V
OHM: 0…100 /0…1/10/100 k
RTD-Pt: Pt 50/100/Pt 500/Pt 1000
RTD-Cu: Cu 50/Cu 100
RTD-Ni: Ni 1000/Ni 10000
T/C: J/K/T/E/B/S/R/N/L
DU: Linear potentiometer (min. 500 )
PROGRAMMABLE PROJECTION
Selection: of type of input and measuring range
Measuring range: adjustable as fixed or with automatic change
Setting: manual, optional projection on the display may be set in the menu for both limit values of the input
signal, e.g. input 0…20 mA> 0…850,0
Projection: -9999…9999
PID REGULATOR
Execution: paralel PID, PI or proporcional
Relay output: double, two-state, PWM
Analogue outpur: electrically isolated, modes: heatinf, cooling, both
Required value: set, from the analogue output, from program
Nr. of programs/steps: 14/64
Launching: time - one off /weekly, by external input, by buttons
RELAY OUTPUTS
Type: digital, settable in the menu
Outputs: relays L1, L2 are alarm outputs, relays L3, L4 are intended as regulatory but can be also used as alarms
ANALOG OUTPUT
Usage: where this type of signal is requested by action devices, or it can be used for processing of the measured
value by external devices.
Type: electrically isolated, programmable with a 12 bit D/A convertor. Functions, type and range of the output
are seelctable in the instrument‘s menu
COMPENSATION
of conduct: in the menu it is possible to perform compensation for 2-wire connection
of conduct in probe: internal connection (conduct resistance in measuring head)
of CJC (T/C): manual or automatic, in the menu it is possible to perform selection of the type of thermocouple and
compensation of cold junctions, which is adjustable or automatic(temperature at the brackets)
* only for types DC, PM, DU
INSTRUCTIONS FOR USE OM 402PID | 5
2.INSTRUMENT DESCRIPTION
DIGITAL FILTERS
Floating average: from2…30 measurements
Exponen. average: from2…100 measurements
Arithmetic average: from2…100 measurements
Rounding: setting the projection step for display
MATHEMATIC FUCTIONS
Min/max. value: registration of min./max. value reached during measurement
Tare: designed to reset display upon non-zero input signal
Peak value: the display shows only max. or min. value
Linearization:* by linear interpolation in50 points (solely via OM Link)
MEASURED DATA RECORD
RTC: Internal fixed storage of data within a selected time period and recording frequency. The capacity is
256 000 values, each with a date and time stamp. Stored data can be transferred to a PC either via
RS 232/485 or via the OM Link interface
2.2 OPERATION
The instrument is set and controlled by five control keys located on the front panel. All programmable settings of the instrument
are performed in three adjusting modes:
LIGHT Simple programming menu
- contains solely items necessary for instrument setting and is protected by optional number code
PROFI Complete programming menu
- contains complete instrument menu and is protected by optional number code
USER User programming menu
- may contain arbitrary items selected from the programming menu (LIGHT/PROFI), which determine
the right (see or change)
- acces without password
All programmable parameters are stored in the EEPROM memory (they hold even after the instrument is switched off).
Complete instrument operation and setting may be performed via OM Link communication interface, which is a
standard equipment of all instruments.
The operation program is freely accessible (www.orbit.merret.eu) and the only requirement is the purchase of OML cable to
connect the instrument to PC. It is manufactured in version RS 232 andUSB and is compatible with all ORBIT MERRET instru-
ments. Another option for connection is with the aid of data output RS 232 or RS 485 (without the need of the OML cable).
The program OM LINK in „Basic“ version will enable you to connect one instrument with the option of visualization and archiving
in PC. The OM Link „Standard“ version has no limitation of the number of instruments connected.
2.3 OPTIONS
Excitation
is suitable for supplying power to sensors and transmitters. It has a galvanic separation.
Input of required value
is used for dependent control method. Current and voltage inputs are available
Data outputs
are for their rate and accuracy suitable for transmission of the measured data for further projection or directly
into the control systems. We offer an isolated RS232 and RS485 with the ASCII or DIN MessBus protocol.
6| INSTRUCTIONS FOR USE OM 402PID
3. INSTRUMENT CONECTION
The instrument supply leads should not be in proximity of the incoming low-potential signals.
Contactors, motors with larger input power should not be in proximity of the instrument.
The leads into the instrument input (measured quantity) should be in sufficient distance from all power leads andappliances.
Provided this cannot be secured it is necessary to use shielded leads with connection to ground (bracket E).
The instruments are tested in compliance with standards for use in industrial area, yet we recommend to abide by the above
mentioned principles.
MEASURING RANGES
TYPE INPUT I INPUT U
DC 0…60/150/300/1 200 mV
PM 0…5/20 mA/4…20 mA ±2/±5/±10/±40 V
OHM 0…100 /1 k/10 k/100 k
RTDPt Pt 50/100/Pt 500/ Pt 1 000
RTDCu Cu 50/100
RTDNi Ni 1 000/10 000
T/C J/K/T/E/B/S/R/N/L
DU Linear potentiometer (min. 500 )
OPTION „A“ Setpoints
TYPE INPUT I INPUT U
PM 0…5/20 mA/4…20 mA ±2/±5/±10/±40 V
Termination of RS 485 communication line
Full Significance Default Recomendation
1-2 connect L+ to (+) source terminalconnected
3-4 termination of line 120 Ohm disconnected connect at the end of line
5-6 connect L- to (-) source terminalconnected do not disconnect
RS 485 line should have a linear structure - wires (ideally shielded and twisted)
should lead from one device to another.
X3 - Termination of commuication line RS 485
X3
153
INSTRUCTIONS FOR USE OM 402PID | 7
3.INSTRUMENT CONECTION
Option A
+
+
14 15 16 17 18 19 20 21
EXT. 1
GND
INPUT - I
INPUT - U
-
Excitation
EXT. 3
EXT. 2
S+ S- E--E+
ES+
E+ ES-
ES--
2322
+
-
5
8910
L
NPOWER SUPPLY
E
123
11 12 13
567
IV V VI
III II I
L4
L3
L2
L1
RxD/L+
TxD/L-
GND
AO-I
AO-U
GND
-
DC, PM
RTD, OHM, Ni
DU
T/C
CJC
-+
4
Relays
SSR
S+
+
ABC
Setpoints - I
Setpoints - U
-
GND
++
+
!
Excitation has the minus pole common with
the input - the bracket no. 20 - GND and
you may set its value by trimmer above the
bracket no. 17
!
Maximum of 250 mA may be connected to “INPUT - I” (bracket no. 21) , i.e. 10-times range overload.
Mind the correct connection/mistaking of current - voltage input.
Destruction of measuring resistance in current input (15R) may occur.
8| INSTRUCTIONS FOR USE OM 402PID
3. INSTRUMENT CONECTION
Example connection of a 2-wire sensor with current signal output powered by instrument’s excitation
Example connection of a 3-wire sensor with current signal output powered by instrument’s excitation
+
14 15 16 17 18 19 20 21
INPUT - IExcitation
2322
+
-
LNE
123
+
(+)
(-)
Sensor (-)Sensor (+)
+
14 15 16 17 18 19 20 21
INPUT - I
-
Excitation
2322
+
-
LNE
123
+
Supply (+)
Output (+)
GND (-)
Output (+)Supply (+)
INSTRUCTIONS FOR USE OM 402PID | 9
INSTRUMENT CONECTION 3.
Example connection of 3-wire sensor with voltage signal output powered by instrument’s excitation
Example connection of resistance measurement using 4 wires
+
14 15 16 17 18 19 20 21
INPUT - U
-
Excitation
2322
+
-
LNE
123
+
Supply (+)
Output (+)
GND (-)
Output (+)Supply (+)
By connecting resistor R* we elimintate error message E. I.Ov. (input overflow) when the measured resistance is disconnected
14 15 16 17 18 19 20 21
E+
2322
+
-
LNE
123
E-S-S+
* resistor 100...1000 Ohm
*
*
Terminals
for the measured resistance
10 | INSTRUCTIONS FOR USE OM 402PID
4. INSTRUMENT SETTING
SETTING
PROFI
For expert users
Complete instrument menu
Access is password protected
Possibility to arrange items of the USER MENU
Tree menu structure
SETTING
LIGHT
For trained users
Only items necessary for instrument setting
Access is password protected
Possibility to arrange items of the USER MENU
Linear menu structure
SETTING
USER
For user operation
Menu items are set by the user (Profi/Light) as per request
Access is not password protected
Optional menu structure either tree (PROFI) or linear (LIGHT)
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