NIVELCO UNICONT PMG-400 Owner's manual

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UNICONT
PMG-400
Universal controller
and display unit
USER'S AND PROGRAMMING MANUAL
1
ST
edition
Manufacturer:
H-1043 Budapest, Dugonics u. 11.
Tel.: [phone] Fax: [phone]
NIVELCO Process Control Co.
E-mail: [e-mail] www.nivelco.com

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TABLE OF CONTENTS
1. GENERAL DESCRIPTION .................................................................................................................... 3
2. ORDER CODE ....................................................................................................................................... 3
3. TECHNICAL DATA................................................................................................................................ 4
3.1 DIMENSIONS...................................................................................................................................... 4
3.2 ACCESSORIES ................................................................................................................................... 4
4. MOUNTING............................................................................................................................................ 5
5. WIRING .................................................................................................................................................. 5
5.1 INPUT SELECTION............................................................................................................................... 5
5.2 WIRING POWER SUPPLY,INPUT/OUTPUT ............................................................................................ 6
6. CONTROL OUTPUTS ........................................................................................................................... 7
6.1 RELAY OUTPUT.................................................................................................................................. 7
6.2 SOLID STATE RELAY (SSR) DRIVER OUTPUT........................................................................................ 8
6.3 ANALOGUE (4-20 mA) OUTPUT........................................................................................................... 9
7. SETTINGS, PROGRAMMING ............................................................................................................. 10
7.1 FRONT PANEL,KEYPAD,DISPLAY...................................................................................................... 10
7.2 BASIC OPERATION............................................................................................................................ 11
7.3 ERROR MESSAGES........................................................................................................................... 11
7.4 SET VALUE (SV) ............................................................................................................................. 11
7.5 CONFIGURATION MODE.................................................................................................................... 12
7.5.1 Mode Settings...................................................................................................................... 12
7.5.2 Control Parameters ............................................................................................................. 13
8. CONTROL ALGORITHMS .................................................................................................................. 14
8.1 ON/OFF CONTROL.......................................................................................................................... 14
8.2 HEATING/COOLING (FILLING /EMPTYING)CONTROL........................................................................... 14
8.3 PROPORTIONAL (P) CONTROL ........................................................................................................... 15
8.4 PID CONTROL ................................................................................................................................. 15
9. IN- AND OUTPUT MODE SETTINGS .................................................................................................16
9.1 SELECT THE INPUT MODE ................................................................................................................. 16
9.1.1 Analogue input..................................................................................................................... 17
9.2 ALARM RELAY OUTPUT..................................................................................................................... 18
9.3 LOOP BREAK ALARM (LBA).............................................................................................................. 19
9.4 SENSOR BREAK ALARM (SBA) ......................................................................................................... 20
9.5 AUTOTUNING (AT) OPERATION.......................................................................................................... 20
9.6 DUAL PID CONTROL FUNCTION......................................................................................................... 21
9.7 RAMP FUNCTION ............................................................................................................................ 22
10. SETTING THE CONTROL PARAMETERS ...................................................................................... 23
10.1 SV-2 FUNCTION (INTERNAL SET VALUE).......................................................................................... 23
10.2 IN-B FUNCTION (INPUT CORRECTION) .............................................................................................. 23
11. FACTORY DEFAULT SETTINGS ..................................................................................................... 24
12. MAINTENANCE, REPAIR ................................................................................................................. 24
13. STORAGE CONDITIONS.................................................................................................................. 24
14. WARRANTY ...................................................................................................................................... 24

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Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use!
1. GENERAL DESCRIPTION
The UNICONT PMG-411, PMG-412 and PMG-413 universal analogue PID-controllers can be used for
temperature measurement with a Pt-100 resistance thermometer or different thermocouples. The
UNICONT controllers are also suitable for processing and display the signals of field transmitters with
4-20 mA and 1-5 V DC or 0-10 V DC output. The output signal of the controller can be relay, continuous
4-20 mA process current signal or SSR-driver. The additional alarm relay provides for limit monitoring. The
unit is microprocessor based featuring auto-tuning software which is able to find the optimal P-I-D
constants automatically. The setting can be performed by the keyboard on the front panel. The large bi-
coloured display provides easy reading even from far distance. The process parameters are red, the set
values are green.
Inputs
Thermocouple
Voltage signal
PMG-400
Universal
controller
Relay
SSR driver
ON/OFF PID
Controls
Outputs
2. ORDER CODE
UNICONT PMG–4 –
INPUT CODE OUTPUT CODE POWER SUPPLY CODE
1x Universal input 1 1x relay + 1x alarm relay 1 230 V AC 1
SSR driver + 1x alarm relay 2
4-20 mA + 1x alarm relay 3

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3. TECHNICAL DATA
Type PMG-41-1
Resistance
thermometer
(3-wire, aut. cable
compensation)
Pt 100 (–199.9 °C...+199.9 °C or 0 °C...+500 °C)
R cable: max. 5 Ω
K (-100 °C … +1100°C); J (0°C … +800°C)
R (0°C … +1700°C); E (0°C … +800°C)
T (-200°C … +400°C); S (0°C … +1700°C)
Thermocouple
(aut. cold junction
compensation) N (0°C … +1300°C); W (0°C … +2300°C)
Voltage 1-5 V DC; 0-10 V DC
Input
Current 4-20 mA DC
Proportional band (P) 0 … 100%
Integral time (I) 0 … 3600 sec
Derivative time (D) 0 … 3600 sec
PID (auto-tuning)
Cycle time (T) 1 … 120 sec
Relay SPDT; 250 V AC, 3 A, AC1
SSR (Solid-State Relay) driver 12 V DC ±3 V (max. 30 mA)
Control
output
Output
Current 4-20 mA DC (max. load: 600 Ω)
Alarm output 1x SPST programmable relay, 250 V AC, 1 A, AC1
Setting and display accuracy ±0.3 % ±1 digit for the whole input scale or ±3 °C
PV (process value) 4 digit, 7 segment 11 mm high red LED
Display SV (set value) 4 digit, 7 segment 7 mm high green LED
Power supply 100-240 V AC 50/60 Hz, max. 5 VA
Allowable voltage range: 90% to 110% of rated voltage
Electrical connection Screw type terminals, max. wire cross-section: 0.5 mm2
Memory protection 10 years
Ingress protection Front side: IP 65, Back side: IP 20
Electrical protection Class II. Reinforced Isolation
Ambient temperature Operation: -10…+50 °C, Storage: -20…+60 °C
Ambient humidity 35 … 85% relative humidity
Dimensions 48 x 48 x 100 mm (panel cut out: 45.5+0.6 x 45.5+0.6 mm)
Weight 0.15 kg
3.1 DIMENSIONS
The unit can be mounted into a suitable
1/16DIN (48x48 mm) cut-out place.
Insertion length of the unit is 100 mm,
the additional dimensions can be seen
on the drawing.
3.2 ACCESSORIES
User’s and Programming manual
Warranty Card
Declaration of Conformity
Mounting bracket

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4. MOUNTING
MOUNTING BRACKET
The unit can be mounted with the help of the
supplied mounting bracket to the suitable cut-
out hole. Be careful with the sealing, which
provides proper sealing from the front panel.
Suitable distances between multiple units
should be taken into consideration.
The cut-out dimensions in case of single, or
multiple units should be the following, and
width of the mounting-plate is 3 - 9 mm.
Using the optional PAM-500-0 front panel adapter the 48x48mm sized unit can be mounted to an existing
96x48mm cut-out hole. In case of using the front panel adapter, the width of the mounting-plate is
3–5 mm.
APPROPRIATE CONDITIONS OF OPERATION
The device is designed for indoor usage only and it should be protected from intense physical damage
and direct sunlight. The device cannot be applied in the following places:
environments which are exposed to strong vibration or other heavy physical impacts
flammable and dusty environments
environments above 85% relative humidity and where sudden temperature changes can happen
strongly acidic or alkaline environments
environments which are exposed to direct sunlight
environments which are exposed to strong magnetic fields or strong electrical noise
5. WIRING
5.1 INPUT SELECTION
To select the input mode it is necessary to detach the housing.
Before performing the operation always make sure that the
device is powered OFF!
Removing the housing should be carried out in two steps
shown in the drawing. First press gently the two clips on the
back side of the device, and then pull backward the inside part
of the device. Select the desired input mode with the help of
the S/W1 and the S/W2 pins and the jumpers on the circuit
board. After setting the jumpers, replace the housing to the
device.
A.) RTD INPUT AND
THERMOCOUPLE INPUT
B.) VOLTAGE INPUT
(1-5 VDC; 0-10 VDC)
C.) CURRENT INPUT
(4-20 mA)
S/W1 S/W2
S/W1 S/W2 S/W1 S/W2

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5.2 WIRING POWER SUPPLY,INPUT/OUTPUT
PMG-411 WIRING PMG-412 WIRING
12
11
AL1 5
4
3
2
1
U
PW
OUT
10
9
8
7
6
–
+
IN1
Pt100
TC
12
11
AL1 5
4
3
2
1
U
PW
SSR
OUT
10
9
8
7
6
–
+
IN1
Pt100
TC
–
+
Relay output and Alarm output SSR driver output and Alarm output
PMG-413 WIRING MARKINGS
UPW Power supply
OUT Control output
AL1Alarm output
IN1Sensor input
12
11
AL1 5
4
3
2
1
U
PW
4…20 mA
OUT
10
9
8
7
6
–
+
IN1
Pt100
TC
–
+
IN2Control input
Analogue (4-20 mA) output and Alarm output
Note:
The power supply should be connected to the terminal via a two-pole isolating switch (preferably
located near the equipment) and an anti-surge fuse. The power is recommended to equipped with
a suitable sized, U-shaped cable lug:
Max 7.2 mm
For wiring the sensors use insulated, shielded cable as short as possible.
The input signal wires should be separated from the supply wire.

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6. CONTROL OUTPUTS
6.1 RELAY OUTPUT
The primary function of the relay output is the realization of the PID control. In case of PID control the
relay output discontinuously turns off or on the load, thereby implements the PID control.
If the value of is ., ON/OFF control will operate. In case of ON/OFF control the relay output
continuously turns off and on the load.
For PID control or ON/OFF control applications it is recommended to use magnet switch or power relay.
Always make sure to observe the technical specifications for the relay contacts! If the relay is
overloaded, it may damage the device.
When the device is controlling main relay or magnet switch / power relay contact, the flow reverse
electromotive force from coil of power relay or magnet switch can cause interference through the supply
wire, which may result the malfunction of the device.
The mechanical lifetime of the output relay is about 107switching which should be taken into account in
any case during the design of the control system. If the relay cycle time () is set to a short value, the
life cycle of the relay is getting lower. It is recommended to choose the type with the SSR driver if the
thermal response of the system is fast and therefore the cycle time () of the relay should be set to a
very low value.
Application example:
Heater
Magnet switch
or power relay
UNICONT
A
B
Power
Note:
It is recommended to keep the power relay or magnetic switch as far as possible from the UNICONT controller.
If the wire length of ’A’ and ’B’ is too short the electromotive force occurred from the coil of the power relay or
magnetic switch may flow in the power line of the unit which may result malfunction.

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6.2 SOLID STATE RELAY (SSR) DRIVER OUTPUT
Using the SSR driver (voltage-impulse) output the unit is suitable for high-speed controlling tasks where
the standard relay switching speed is not sufficient.
SSR driver output is suitable for driving solid state relay with 12 V DC voltage and max.30 mA load.
For the realization of high-speed control, the cycle time () of the relay is recommended to set 1 to 2
seconds.
Application example:
UNICONT
SSR
OUT SSRIN OUT
Heater
Power
Note:
The solid state relay should be selected according to the capacity of the load otherwise short circuit may occur,
which may result fire.
Usage of the SSR driver output is recommended in case of indirect heating in order to provide efficient operation.

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6.3 ANALOGUE (4-20 mA) OUTPUT
Using of the analogue output intervening devices with current input can be controlled. As an advantageous
feature for example control valve with position control can be controlled using the analogue output.
The control output of the unit provides the current value specified by the PID parameters.
The 4 mA current value is assigned to 0 % and 20 mA is assigned to 100 %.
The maximum load of the analogue output is 600 Ω. In case of higher load the current output value will
not change proportionally to the measured value.
When current output is used the Manipulated Value (MV) is changing as analogue form and its value can
rarely be 0% or 100%. Therefore  (loop break alarm) mode can not be used in case of using current
output.
When analogue output is used the OUT (control output) indicator LED on the front panel does not
indicate the status of the output.
Application example:
UNICONT
Power Analogue
output
Frequency inverter
IN OUT
Asynchronous or
synchronous motor

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7. SETTINGS, PROGRAMMING
7.1 FRONT PANEL,KEYPAD,DISPLAY
In normal (measurement) mode the
7-segment displays show the
measured Process Value and the
Set Value. In the other modes it
shows texts and values in
accordance to the actual state of the
programming and configuration.
With the 3 arrow ( , , ) buttons
the menu-system can be handled
and programming can be performed.
CONTROL PANEL
NUMBER
NAME OPERATION
1 Process Value (PV) In normal (measurement) mode: display measured Process Value
In configuration mode: display selected setting
2 Set Value (SV) In normal (measurement) mode: display Set Value
In configuration mode: display SV or value of selected setting
3 Second SV (SV2)
indication The SV2 (green) LED lights if the internal second SV is active
4 Autotuning (AT)
indication
The AT (green) LED flashes to indicate if the
device performs the autotuning
5 Autotuning (AT)
button Press the button to enter the auto tuning mode
6 , , buttons
Press the button to move between the digits,
with / buttons the selected digit value
can be changed up or down
7 Event 1 (EV1) output
(alarm) indication The EV1 (red) LED is lit if the alarm output is active
8 Control Output (OUT)
indication The OUT (red) LED is lit if the control output is active
9 P/E button Press the button to enter the configuration mode
or return to the normal (measurement) mode