NIVELCO UNICONT PM PMG-500 User manual

1 pmg511en23q03
Thank you for choosing a NIVELCO product!
Alarm output Relay (AL1) 250 V / 3 A AC-1
Optional
outputs
Transmitter
output
4…20 mA: output accuracy ±0.3% F.S
(max. loop resistance 500 Ω)
Communication RS485 communication Modbus RTU protocol
Control algorithms: ON/OFF, P, PI, PD, PID
Hysteresis RTD / Thermocouples: 1…100 °C (0.1…100 °C) (33.8…212 °F [32.2…212 °F])
Proportional band (P) 0.1…999.9 °C (32.2…1 831.8 °F) (0.1…999.9%)
Integral time (I) 0…9999 s
Differential time (D)
Control period (T) Relay output, SSR driver output: 0.1…120.0 s
Current loop output + SSR driver output: 1.0…120.0 s
Manual reset value 0…100%
Sampling period 50 ms
Vibration resistance 0.75 mm (0.03″)amplitude at frequency 5 to 55 Hz (for 1 min)
in each X, Y, Z direction for 2 hours
Relay life
cycle
Mechanical OUT1/OUT2: min. 5,000,000 operations
AL1: min. 20,000,000 operations
Electrical OUT1/OUT2, AL1: min. 100,000 operations
Memory retention ~10 years (non-volatile semiconductor memory)
Ingress protection Behind mounting plane: IP20, front panel: IP54
Insulation type Reinforced insulation between the input and the power part
(dielectric breakdown: 2 kV)
Bounding box size 48 × 48 × 70.5 mm (1.89 × 1.89 × 2.77″)
Weight ~105 g (3.7 oz)
2.2 ACCESSORIES
– Quick Setup Guide
– Mounting bracket
– Warranty Card
– EU Declaration of Conformity
2.4 OUTLINES AND DIMENSIONS
The device can be mounted in a 48×48 mm (1.8 × 1.8″) cutout (1/16 DIN board instrument).
The insertion depth is 64.5 mm, other main dimensions are shown in the gure.
PMG–5
Front Side
48
45
1.7
664.5
Mounting Bracket
31
20
15
21
5
45
16
48.6
44.9
36
55
56
3. Mounting
The panel is mounted on the front panel in a 1/16 DIN (48 × 48 mm [1.8 × 1.8″]) cutout with the supplied mounting
frame. Make sure that the rubber seal ts, which ensures tightness from the front. When installing multiple instru-
ments, ensure adequate distances. Insert the unit into the bracket panel and secure the bracket with a straight
screwdriver.
(-)
Tightening the mounting bracket Minimum distance between devices
A – min. 65 mm (2.55″) C – 450
+0.6 mm
B – min. 65 mm (2.55″) D – 450
+0.6 mm
D
B
C
A
4. WIRING
DI-1
RS485 (B - )
RS485 (A+)
RTD TC Sensor
CT
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
A
B
B'
V
mA
mA
DI-1
-
+
Digital input,
Non-contact,
Contact input
V
mA
*
Supply voltage
100…240 V AC 50/60 Hz 8 VA
24 V AC 50/60 Hz 8 VA
24…48 V DC 5 W
V
mA
DC Current
0/4…20 mA
Max. load 500 Ω
SSR
11 V DC ±2 V
Max. 20 mA
AL1 output
250 V 3 A AC–1
Resistive load
Output 2
Relay
250 V 3 A AC–1
Resistive load
Current
transformer (CT)
0.0…50.0 A
Transmitter
output
4…20 mA
DC
12
Output 1
Relay
250 V 3 A AC–1
Resistive load
*
*
Ally types have colored connection points (). Other connection point types depend on the particular variant.
UNICONT PM
PMG–500
UNIVERSAL CONTROLLER
Manufacturer:
Process Control Co.
H–1043 Budapest, Dugonics u. 11.
Tel.: [phone]
E-mail: [e-mail] nivelco.com
QUICK SETUP GUIDE
3rd edition
PDF 
1. INTRODUCTION
In addition to the 1/16 DIN (48 × 48 mm [1.8 × 1.8″]) design, the UNICONT PM universal controller family is characterized by easy setpoint adjustment and
easy programming. The universal analog PID controller is suitable for processing signals from Pt100 resistance thermometers, various thermocouples,
and transmitters with a 4…20 mA and 0…10 V DC, 0…5 V DC, 1…5 V DC, 0…100 mV DC signal. The control output can be a relay, a continuous 0…20 mA
or 4…20 mA current signal, or an output suitable for operating an SSR (solid-state relay). The self-learning autotuning (AT ) mode helps users determine
PID parameters. The device provides automatic wire compensation for the Pt100 input signal and automatic cold junction compensation for the thermo-
couple input signal. Some PM–500 series members are also capable of RS485 communication.
The UNICONT PM–500 enables more efcient control with a super-fast 50 ms sampling cycle and ±0.3% display accuracy. Moreover, it supports a variety
of control modes, including simultaneous control of heating and cooling and automatic/manual control and communication functions.
2. SPECIFICATIONS
2.1 GENERAL DATA
PMG–500
Power
supply
AC 100…240 V AC, 50/60 Hz, 8 VA
AC/DC 24 V AC 50/60 Hz, 8 VA / 24…48 V DC, 5 W
Voltage tolerance ±10% deviance from nominal voltage
Ambient temperature –10…+50 °C (14…122 °F)
Ambient humidity 35...85% RH
Display
Process Value (PV): 7-segment, red, 7.0 × 14.0 mm (0.27 × 0.55").
Set Value (SV): 7-segment, green, 5.0 × 10.0 mm (0.2 × 0.39″).
Status LEDs with labels
Primary
input
RTD mode Compatible resistance temperature sensors: JPt 100 Ω, DPt 100 Ω, DPt 50 Ω, Cu 100 Ω, Cu 50 Ω, and Nikel 120 Ω
TC mode Compatible thermocouple sensors: K, J, E, T, L, N, U, R, S, B, C, G, and PLII
Analog mode Voltage: 0…100 mV, 0…5 V, 1…5 V, 0…10 V
Current: 0…20 mA, 4…20 mA
Optional
inputs
CT input 0…50 mA (for external 1/1000 CT connection)
Digital input (DI)
Active input for passive switches, measuring current: 0.5 mA / 5 V
Contact switch – sensing threshold: ’On’ < 2 kΩ / ’Off’ > 90 kΩ
Transistor switch – sensing threshold: ’On’ < 1.0 V DC / ’Off’ < 0.1 mA
Display
accuracy
RTD mode Room temperature (23 °C ±5 °C): (PV ±0.3% or ±1 °C) ±1 digit
Full ambient-temperature range: (PV ±0.5% or ±2 °C) ±1 digit
TC mode
Analog mode Room temperature (23 °C ±5 °C): ±0.3% F.S. ±1 digit
Full ambient-temperature range: ±0.5% F.S. ±1 digit
CT input ±5% F.S. ±1 digit
Control
outputs
Relay (OUT1/2) 250 V / 3 A AC-1
SSR (OUT1/2) 11 V DC ±2 V / 20 mA
Current (OUT1/2) 4…20 mA / 0…20 mA selectable (max. loop resistance 500 Ω)

2 pmg511en23q03
Important information for proper use:
– The digital input is not electrically isolated from internal circuits, so it must be insulated if it is connected to
another circuit.
– Make sure that the connection polarity of the temperature sensor or analog input is correct.
– Make sure the polarity of the power supply is correct.
– Do not swap the output and input terminals.
– For thermocouple sensors, use a compensation cable with the same specifications as the input sensors. Using
an extension cord of different specifications and/or materials makes temperature sensing less accurate. For
more reliable operation, choosing a high-grade compensation cable is recommended.
– Do not place sensor wires near AC wires.
– Do not attach communication cables to the AC power cord. Use only twisted-pair wires for communication
cabling. The length of the communication cable must not exceed 800 meters.
5. PROGRAMMING
5.1 PARTS AND DISPLAY
The seven-segment displays show the measured (Process
Value, PV) and set values (SV) in regular operation, while in
other modes, they show the corresponding text signals and
values according to the current status of programming and
setting. Use the 4 buttons to operate the menu system and
perform programming.
1. Measured Value (PV):
RUN mode: it shows the currently measured value (PV).
Setting mode: it shows the name of the parameter.
2. Set value (SV):
RUN mode: it shows the set value (SV).
Setting mode: it shows the the parameter value.
3. Unit (°C / °F / %) indicator: It displays the unit set in parameter group 3. The unit applies to the displayed values
of the PV and SV.
4. Manual control indicator (MAN): it switches on during manual control.
5. Multi SV indicator (SV1, SV2, SV3) LEDs: Indicates the different target value setting currently in use (SV1-3).
The base destination eld (SV0) is valid if none is active. Not available for all models.
6. Auto-tuning indicator (AT): ashes every 1 second when auto-tuning is executed.
7. Alarm output (AL1) indicator: it turns on when the alarm output is on.
8. Control output (OUT1, OUT2) indicator: it turns on when the corresponding control output is active. During
manual control, it switches off if the measured value is 0.0% when using a current output; otherwise, it is switched
on continuously. During automatic control, it switches on when the measured value exceeds 3.0% and switches
off when it falls below 2.0%.
9. button: It is used when entering parameter group, returning to RUN mode, moving parameter, saving the
set value.
10. buttons: they are used when entering the set value, changing mode, navigating between param-
eters/values, and changing values up/down.
11. Digital input key: When pressing the buttons together for 3 seconds, it operates the RUN/STOP, alarm
clear, and auto tuning functions.
5.2 STARTUP
When energized, the display will ash for one second, at which point all display sections will illuminate. Then the
hardware ID code and the input sensor type will ash twice, and the unit will switch to RUN mode. If ‘Open’ is
displayed, there is no source or there is a contact error on the universal input.
In RUN mode, the current temperature or the value provided by the sensor is displayed.
The parameters in each group are related to each other, so please follow the parameter order below.
Parameter group 3 [PAR3] → Parameter group 4 [PAR4] → Parameter group 5 [PAR5] →
Parameter group 2 [PAR2] → Parameter group 1 [PAR1] → SV Setting [SV]
Note: Changing the parameters of parameter group 3 can sometimes restore other related parameters. Always check that
such parameters are not affected.
5.3 INPUT SETTINGS [PAR3 →IN-T]
For normal operation, the universal input must rst the universal input must be set in ‘Setting’ mode. Then the input
type must be selected according to table 5.3.1 Input types. Default setting: KCaH.
Input type Accuracy Indication Temperature range (°C) Temperature range (°F)
Thermocouple (TC)
K (CA) 1 KCaH –200…1350 –328…2463
0.1 KCaL –199.9…999.9 –199.9…999.9
J (IC) 1 JIcH –200…800 –328…1472
0.1 JIcL –199.9…800.0 –199.9…999.9
E (CR) 1 ECrH –200…800 –328…1472
0.1 ECrL –199.9…800.0 –199.9…999.9
T (CC) 1 TCcH –200…400 –328…752
0.1 TCcL –199.9…400.0 –199.9…752.0
B (PR) 1 B PR 0…1800 32…3272
R (PR) 1 R PR 0…1750 32…3182
S (PR) 1 S PR 0…1750 32…3182
N (NN) 1 N NN –200…1300 –328…2372
Thermocouple (TC)
C (TT) 1 C TT 0…2300 32…4172
G (TT) 1 G TT 0…2300 32…4172
L (IC) 1 LIcH –200…900 –328…1652
0.1 LIcL –199.9…900.0 –199.9…999.9
U (CC) 1 UCcH –200…400 –328…752
0.1 UCcL –199.9…400.0 –199.9…752.0
Platinel II 1 PLII 0…1390 32…2534
RTD
Cu 50 Ω 0.1 CU 5 –199.9…200.0 –199.9…392.0
Cu 100 Ω 0.1 CU10 –199.9…200.0 –199.9…392.0
JPt 100 Ω 1 JPtH –200…650 –328…1202
JPt 100 Ω 0.1 JPtL –199.9…650.0 –199.9…999.9
DPt 50 Ω 0.1 DPt5 –199.9…600.0 –199.9…999.9
DPt 100 Ω 1 DPtH –200…650 –328…1202
DPt 100 Ω 0.1 DPtL –199.9…650.0 –199.9…999.9
Nickel 120 Ω 1 NI12 –80…200 –112…392
Analog
Voltage
0…10 V AV1
–1999…9999
(The display point changes according to the decimal point.)
0…5 V AV2
1…5 V AV3
0…100 mV AMV1
Current 0…20 mA AMA1
4…20 mA AMA2
5.3.1 Sensor Temperature Unit
When the input temperature sensor is selected, the [PAR3 - UNIT] can be set to display the desired unit (°C, °F).
However, this parameter is not displayed when an analog input is selected. The default unit is °C
When analog input is selected, it is possible to specify the unit [PAR3 - dUNT] (°C, °F,%, OFF). When OFF is
selected, the displayed unit is not specied. The LED unit display does not turn on. The default setting is %.
5.3.2 Low-Limit Input Value [PAR3 → L-RG]
The actually used lower limit values can be set within the analog input range. The temperature range from the
minimum value to the upper limit [H-RG] - F.S. adjustable up to 10%. Default: 0.
5.3.3 Upper-Limit Input Value [PAR3 → H-RG]
The actually used limit values can be set within the analog input range. The lower input limit [L-RG] + F.S. can be
set from 10% to the maximum value of the temperature range. Default: 10.
5.3.4 Input Offset Correction [PAR3 → IN-B]
This function is used to correct the offset provided by thermocouples, RTDs, or analog input devices. The input
correction function is mainly used when the sensor cannot be xed directly to the controlled objects. Temperature
difference compensation must be performed between the sensor installation point and the actual measuring point.
Default setting: 0, unit: °C / °F / -.
Example: If the controller shows 78 °C (172.4 °F) when the actual temperature is 80 °C (176 °F), set the input
correction [IN-B] to “002” to set the temperature displayed on the controller to 80 °C (176 °F).
5.4 OUTPUT SETTINGS
5.4.1. Control output (OUT1/OUT2) selection [PAR3 → OUT1/OUT2]
On models with a current loop output, current (CURR) or SSR drive output can be selected. Default setting: SSR.
5.4.2. SSRP function [PAR3 → O1SR]
SSRP function of SSR drive output is selectable one of standard ON/OFF control, cycle, phase control. By param-
eter setting, standard SSR drive is available. Also, cycle control connecting with a zero cross turn-on method SSR,
phase control connectiong with a random turn-on method SSR are available.
1. Standard ON/OFF control [STND]
A mode to control the load in the same way as Relay output type.(ON: output level 100%, OFF: output level 0%)
2. Cycle control [CYCL]
A mode to control the load by repeating output ON / OFF according to the rate of output within setting cycle.
Having improved ON / OFF noise feature by Zero Cross type.
3. Phase control [PHAS]
A mode to control the load by controlling the phase within AC half cycle. Serial control is available. Random
turn-on SSR must be used for this mode.
5.4.3 Current output range settings [PAR3 → O1MA/O2MA]
If the control output is set to current output, you can select upper and low-limit range for the current output as either
4…20 mA or 0…20 mA.
O1MA: Sets OUT1’s current output range. O2MA: Sets OUT2’s current output range.
Note: This parameter is only available on models supporting current output [OUT1, OUT2].
5.5 CONTROL OUTPUT
Output modes for general temperature control include heating mode or cooling mode and heating and cooling mode.
Heating control and cooling control are opposite operations with inverted outputs. The PID time constant varies de-
pending on the characteristics of the section controlled during PID control. The value of the control output is MV
(Manipulated Variable). MV is a percentage value that controls the switching of the assigned device output ac-
cording to the settings.
Setting group Parameter Range Default
PAR3 O-FT Standard model: HEAT / COOL HEAT
Heating/cooling model: HEAT / COOL / H-C H-C
5.5.1 Heating Control [PAR3 → O-FT → HEAT] or Cooling Control [PAR3→ O-FT → COOL]
Heating control mode: If the Process Value (PV) falls below the Set Value (SV), the output will power the heater.
Cooling control Mode: If the Process Value (PV) rises above the Set Value (SV), the output will power the cooler .
5.5.2 Heating & Cooling Control [PAR3 → O-FT → H-C]
Heating and cooling control mode: heating and cooling with a single temperature controller if it is difcult to control
the temperature of the object by heating or cooling alone. The heating and cooling control mode uses different PID
time constants to control heating and cooling. It is possible to set the heating and cooling control in both PID control
and ON / OFF control modes.
For heating and cooling control, the control output OUT1 is assigned to the heating control, and the control output
OUT2 is assigned to the cooling control. Note that the OUT2 SSR drive output uses Ex ia standard (on / off) control.
5.5.3 Deadband/Overlap Band [PAR2 → DB]
It is possible to assign a deadband between the heating and cooling control bands based on the Set Value (SV) for
heating and cooling. A deadband is formed around the SV when a positive (+) value is set. There is no regulation in
the deadband, so the heating and cooling MV (Manipulated Variable) will be 0.0% in the deadband formed. When
the negative (-) value is set, an overlap band (simultaneous heating and cooling MVs) is formed around the SV.
Set to 0 if no deadband or overlap band is used.
When setting the integral time, this applies if the integral time for the heating control and cooling control is set.
It also acts as a P-P controller for PI-P control and P-PI control.
5.5.4 MV Upper Limit Value [PAR2 → H-MV] and MV Lower Limit Value [PAR2 → L-MV]
The upper / lower limits of the control output MV [H-MV / L-MV] can be set to the actual MV, provided that the MV
calculation of the temperature controller exceeds the limits.
When controlling heating and cooling, the cooling MV contains a „-” prex. Therefore, the upper limit displayed on
the heating side is +, and the lower limit is displayed on the cooling side.
Standard control (heating) Heating and cooling control
100%
MV upper limit
Control output
MV lower limit
0%
100%
MV upper limit
Control output
MV lower limit
0%
Heating control Heating control
Cooling control
PV
Parameter Description / Range Default
H-MV
Standard control: MV lower limit value [L-MV] +0.1…100.0 100.0%
Heating and cooling control: 000.0…100.0 (PID)
0.0 (OFF)/100.0 (ON) (ON/OFF) 100.0%
L-MV Standard control: 000.0…MV upper limit value [H-MV] –0.1 0.0%
Heating and cooling control: –100.0…000.0 (PID), –100.0 (ON) / 0.0 (OFF) (ON/OFF) –100.0%
Note: The same MV limits apply during auto-tuning. The MV limits do not apply to manual control, MV when control is
stopped, MV sensor failure, and initial manual control. The MV upper / lower limit conguration is not available in the ON /
OFF standard control mode (heating or cooling control).
6
1
3
2
8
7
4
5
910
11

3 pmg511en23q03
5.5.5 MV Settings for Sensor Break Error [OPEN] [PAR5 → ErMV]
In the event of an open sensor error, the output value of the controller can be set to a predened MV value instead
of ON / OFF or PID control. Ignores the MV based on the ON / OFF or PID control and sends a control value based
on the specied MV. Default setting: 0.0%.
5.5.6 Auto/Manual control settings
The automatic mode is for the temperature to reach SV with the MV value calculated by the PID control. The pur-
pose of the manual mode is for the temperature to reach SV with a user-dened MV value.
It is possible to switch to manual mode during STOP state. It is also possible to switch between automatic / manual
mode during adjustment, but automatic tuning will stop if manual control is switched on during automatic tuning.
If a sensor break alarm occurs in [SBA] normal mode, the MV [ErMV]sensor fault will occur. The MV settings for
manual and automatic control can be changed in this state.
Operational priority: Manual control > Stop > Open (sensor disconnected)
5.5.6.1 Switching Between Manual/Auto Control
Switching to manual mode for standard control (heating or cooling):
– In ‘Normal’ mode, press the button, and the device will switch to MV monitoring mode. The SV display
shows H(heating control) or C(cooling control) and shows MV, indicating the start of MV monitoring
.
– If any of is pressed during MV monitoring, the MAN indicator will turn on, and the lowest
digit (100 digits) will flash to indicate that the manual control is active.
– Press the button to move the flashing digit (100 → 101 → 102 → 103 → 100)!
Select the digit and configure the desired MV value with the buttons 0 → 1 → 2 → 3 → 4
→ 5 → 6 → 7 → 8 → 9 → 0 using the buttons.
– In either state, press the button to end manual control. The MAN indicator light goes out, and the
system returns to automatic control mode.
Switching to manual mode for heating and cooling control:
– The procedure is the same as for heating or cooling. After setting the heating, the next step is to set the cooling
(C).
Note: After heating and cooling control, the system returns to automatic control in the order of heating monitoring, manual
heating control, cooling monitoring, and manual cooling control. To switch between automatic and manual mode, press the
button once. The heating MV remains valid during cooling monitoring and manual cooling control. When the [DI-1]
digital input function is set to AUTO / MANUAL [MAN], the button on the front panel and the auto / manual control
functions via communication do not work.
5.5.6.2 Initial MV Manual Control [PAR5 → PrMV]
If the basic MV for manual control is set to PrMV, the initial MV can be set to manual mode. For ON / OFF and PID
control, the default setting is Standard or Heating and Cooling: 0.0%.
5.6 TEMPERATURE CONTROL
5.6.1 Temperature Control Mode
[PAR3 → C-MD]
Choose the type of temperature control method.
Default setting: PID/PP.
Setting Description
Heating Cooling
Standard
Control
PID PID
ONOF ON/OFF
Heating
& Cooling
Control
PP PID PID
PON PID ON/OFF
ONP ON/OFF PID
ONON ON/OFF ON/OFF
5.6.2 ON/OFF Control with Hysteresis Function [PAR3 → C-MD → ONOF]
It controls the temperature by comparing the process value (PV) with the set value (SV) and switching the load
on or off.
Temperature
Control
output
SV OFF_Offset
ON_Hysteresis
Time (t)
Heating control
Temperature
Control
output
SV OFF_Offset
ON_Hysteresis
Time (t)
Cooling control
Hysteresis [PAR2 → hHYS/hOFT/cHYS/cOFT]
Hysteresis is the setting of the control output on and off point in ON / OFF mode. ON_Hysteresis sets the output to
an ON point, and OFF_Offset sets an off point. The values are set in °C / °F.
Parameter Description / Range Default
hHYS Sets ON_Hysteresis to heating control 002
hOFT Sets OFF_Offset to heating control
cHYS Sets ON_Hysteresis to cooling control 000
cOFT Sets OFF_Offset to cooling control
5.6.3 PID Control [PAR3 → C-MD → PID]
PID control is a combination of the proportional (P), integral (I), and differential (D) control and provides excellent
control over the devices, even with a delay time. The device uses the same PID time constant for SV0… SV1.
Proportional control (P) follows the set control value well with a small error; integral control (I) automatically corrects
the error, and differential control (D) accelerates the response to the control. Through these operations, PID control
achieves ideal temperature control.
Note: The PID controller can also be set as a P, PI, or PD controller.
Proportional control (P): Select PID control and set the integration and differential time to 0000.
Proportional Integral Control (PI): Select PID control and set the differential time to 0000.
Proportional Differential Control (PD): Select PID control and set the integration time to 0000.
5.6.3.1 Setting the Proportional Band for Heating [PAR2 → H-P] and Cooling [PAR2 → C-P]
If the Process Value (PV) is within the proportional band (P), the ON / OFF ratio must be adjusted during the pro-
portional period (T). The dened proportional control (time proportional control) section is called the proportional
band. Default value: 10.0. It is set in °C / °F / %.
5.6.3.2 Setting Integral Time for Heating [PAR2 → H-I] and Cooling [PAR2 → C-I]
MVs from integrative and proportional operation become identical if the deviation is consistent. The time required
for the two MVs to match is called the integral time. Default value: 0 s.
Note: Integration does not occur if the integral time is set to 0. Setting the integral time too short can increase correction
movements and cause control oscillations.
5.6.3.3 Setting Derivative Time for Heating [PAR2 → H-D] and Cooling [PAR2 → C-D]
According to the difference of the ramp, the MV obtained from the derivative operation and the time required to
reach the MV obtained from the proportional control are called the derivative time.
Note: The differentiation member stops when the derivative time is set to 0.
5.6.3.4 Setting Control Period for Heating [PAR3 → H-T] and Cooling [PAR3 → C-T]
If a relay or SSR is used with control proportional to the MV output, the output will be on for a period of time (within
the control period, as a percentage of the MV) and will remain off for the rest of the time. The preset period when
the output is ON / OFF is called the proportional control period.
Control with SSR drive output is faster than relay output. Therefore, setting a shorter control period can achieve
more sensitive temperature control.
Default – Relay: 20.0 s / SSR: 2.0 s.
Note: If heating and cooling control is used, congure the control period for heating and cooling separately.
5.6.4 Auto-Tuning
Automatic tuning measures the controlled section’s temperature characteristics and thermal response rate and
then determines the required PID time constants. (If the [C-MD] control type is PID, it is displayed.)
This operation will stop automatically if an [OPEN] error occurs during auto-tuning.
To stop auto-tuning, change the setting to OFF. (In this case, the P, I, D values before auto-tuning are retained.)
5.6.4.1 Auto-Tuning ON/OFF [PAR2 → AT]
Auto Tuning automatically stores the PID time constants when completed. These PID time constants can then be
modied according to their usage environment. Default setting: OFF.
When auto-tuning is in progress, the AT indicator on the controller’s front ashes every 1 second. When auto-tuning
is completed, the AT indicator will automatically turn off, and the auto-tuning parameter will return to the OFF
position.
Setting Description
OFF Auto-tuning is off or nished
ON Auto-tuning is in progress
5.7 ALARM OUTPUT
There are three alarms that operate separately. In addition, the combined alarm operation and alarm option can
be set. Use the digital input setting as [AlRE] or turn off the unit and restart the unit to clear the alarm operation.
5.7.1 Alarm Operation [PAR4 → AL-1]
Select the alarm operation. Default setting is “DV [[”
Mode Name Alarm operation Description (default)
OFF - - No alarm output
DV]]
Deviation
upper limit
alarm
OFF
SV
100 °C
PV
110 °C
ONH
Upper deviation:
Set to 10 °C (50 °F)
OFF
PV
90 °C
SV
100 °C
ONH
Upper deviation:
Set to –10 °C (14°F)
If the deviation between PV
and SV is higher than the set
value for the high temperature
deviation, the alarm output
will turn on.
The upper limit deviation
temperature can be set at
AL1H.
]]DV Deviation lower
limit alarm
ON OFF
PV
90 °C
SV
100 °C
H
Lower deviation:
Set to 10 °C (50 °F)
ON OFF
SV
100 °C
PV
110 °C
H
Lower deviation:
Set to –10 °C (14°F)
If the deviation between PV
and SV is higher than the
deviation temperature setpoint
as a lower limit, the alarm
output will turn on.
The lower limit can be set for
the AL1L .
]DV[
Deviation
upper / lower
limit alarm
ON ONOFF
PV
120 °C
PV
90 °C
SV
100 °C
H H
Lower deviation: Set to 10 °C (50 °F)
Upper deviation: Set to 20 °C (68 °F)
If the deviation of the upper
/ lower limit between PV and
SV is higher than the deviation
temperature setpoint, the
alarm output will turn on.
The upper limit deviation
temperature can be set in
AL1H.
The lower limit deviation tem-
perature can be set in AL1L.
[DV]
Reverse alarm
upper / lower
limit
OFF OFFON
PV
120 °C
PV
90 °C
SV
100 °C
H H
Lower deviation: set to 10 °C (50 °F)
Upper deviation: set to 20 °C (68 °F)
If the difference between
the PV and SV upper / lower
limit is higher than the set
temperature difference, the
alarm output will turn off.
The upper limit deviation can
be set in AL1H.
The lower limit deviation can
be set in the AL1L.
PV[[
Absolute value
upper limit
alarm
OFF ON
PV
90 °C
SV
100 °C
H
Absolute value of alarm:
set to 90 °C (194 °F)
OFF ON
SV
100 °C
PV
110 °C
H
Absolute value of alarm:
set to 110 °C (230 °F)
If the PV is higher than the
absolute value, the output will
turn on.
The absolute value alarm can
be set in AL1H.
]]PV
Absolute value
lower limit
alarm
ON OFF
PV
90 °C
SV
100 °C
H
Absolute value of alarm:
set to 90 °C (194 °F)
ON OFF
SV
100 °C
PV
110 °C
H
Absolute value of alarm:
set to 110 °C (230 °F)
If the PV is lower than the
absolute value, the output will
turn on.
The absolute value of the
alarm can be set in the
AL1L .
LBA Loop break
alarm –Turns on when it detects a
loop break.
SBA Sensor error
alarm –It turns on when the connecti-
on to the sensor is lost.
HBA Heating error
alarm –It turns on when the CT
detects a break in the heater.

4 pmg511en23q03
5.7.2 Alarm Output Settings [PAR4 → AL1T]
Users can select alarm output settings. Default setting: AL-A
Setting Mode Description
AL-A Standard
alarm
If there is an alarm condition, the alarm output is ON. If there is no alarm condition,
the alarm output is OFF.
AL-B Alarm latch If an alarm condition exists, the alarm output is ON and remains ON.
AL-C Standby sequ-
ence 1
The rst alarm condition is ignored, and the second alarm condition operates in
normal alarm mode.
If there is power supplied and there is an alarm condition, the rst alarm condition is
ignored and the standard alarm operates from the second alarm condition.
AL-D
Alarm latch
and standby
sequence 1
If there is an alarm condition, it activates the alarm latch and the standby sequence.
If there is power and there is an alarm condition, the rst alarm condition is ignored
and the alarm latch operates from the second alarm condition.
AL-E Standby sequ-
ence 2
The rst alarm condition is ignored, and the second alarm condition is the normal
alarm. When the standby sequence is re-applied and an alarm condition occurs, the
alarm output will not turn on. After clearing the alarm condition, the standard alarm
will operate.
AL-F
Alarm latch
and standby
sequence 2
The basic operation is the same as the alarm latch and the 1st standby sequence.
Not only does it work by turning on / off, but also changing the alarm setting value
or alarm option. Re-application of the standby sequence and if there is an alarm
condition, the alarm output will not turn on. After clearing the alarm condition, the
alarm latch will operate.
5.7.3 Alarm Output Lower [PAR1 → AL1L] and Upper [PAR1 → AL1H] Limit Value Settings
Output alarm activation values can be set. The [AL1H / AL1L] conguration parameters are activated for each
setting according to the selected alarm operation. The upper / lower limit values are according to the individual input
specication of the sensor. The lower limit is the reference value for determining burnout of the heating element.
Default setting - Temperature: 1550 / Analog: 100.0
5.7.4 Alarm Output Hysteresis [PAR4 → A1HY]
Setting the on / off interval for alarm output 1 (5.7.1 Alarm operation [PAR4 → AL-1]). ″H″ means the hysteresis of
the alarm output in alarm operation. It is used to set the interval between the ON / OFF periods of the alarm outputs.
Default setting: 1. It is set to °C / °F / %.
5.7.5 Alarm NO/NC [PAR4 → A1N]
Selects the contact type for alarm output 1. The contact mode of the relay can be set in the event of an alarm.
Default setting: NO.
Setting Decription
NO Normally open – Stays open normally and closes when there is an alarm.
NC Normally closed – Stays closed normally, opens only when there is an alarm.
5.7.6 Alarm Output Delay Settings [PAR4 → A1ON / A1OF]
The alarm output delay can be set to prevent false alarms caused by faulty input signals due to interference or noise.
The default setting for both parameters: 0 s.
If there is a preset delay time, the alarm output will not turn on for the preset time. Instead, the front alarm indicator
ashes every 0.5 seconds.
5.7.7 Loop Break Alarm (LBA) [PAR4 → AL-1/ → LBA]
Diagnose the control loop by monitoring the temperature change in the control circuit and send alarms if necessary .
5.7.8 LBA Monitoring Period [PAR4 → LBaT]
The LBA monitoring time can be set to control the temperature changes of the controlled section. Automatic adjust-
ment with automatic tuning. Default setting: 0 s.
5.7.9 LBA Detection Band [PAR4 → LBaB]
The minimum deviation value can be set to decrease during the LBA monitoring time. Automatic adjustment with
automatic tuning. (If the SV is outside the auto adjustment range, the auto adjustment will be set to the maximum
or minimum value.)
5.7.10 Sensor Break Alarm [PAR4 → AL-1 → SBA]
The controller can be set to send an alarm if no sensor is connected or it is disconnected during temperature control.
5.7.11 Heater Burnout Alarm [PAR4 → AL-1 → HBA]
If a heater is used to increase the temperature of the controlled section, the PMG-500 temperature controller can be
set to monitor the heater power supply and send an alarm if it detects a heater connection fault.
The device detects the power supply to the heater using a current transformer (CT) which converts the current to
the heater to a specied ratio (CT ratio) for inspection. If the heating current [CT-A] measured by the CT is less than
the setting value of the heating sensor [AL1L], the heater burnout alarm is activated.
Heater burnout detection settingsi [PAR1 → AL1L]
Set the alarm output value [AL1L] as the reference value to detect the heater burnout. Default setting: 0.0. Unit: A.
Note: Set to 0.0 to turn off. Set to 50.0 to turn on.
5.7.12 Alarm Output Deactivation [PAR5 → DI-K→ ALRE]
Available only when the alarm output is set to alarm latch or alarm latch and standby sequence 1, alarm latch
and standby sequence 2. It can be set to turn off the alarm output when the alarm output is on, the alarm output
conditions are cleared, or the alarm output deactivation signal is greater than the minimum signal band. (However,
deactivating the alarm output is not available if the alarm conditions are still valid.)
5.8 ANALOG TRANSMISSION
5.8.1 Analog Transmission Output Value Settings [PAR4 → AoM1]
The analog transmission output is an auxiliary output that converts the controller present value, set value, heating
MV, cooling MV to analog current (DC 4… 20 mA) for external transmission. Fixed to PV transmission mode, other
modes are not supported yet.
5.8.2 Transmission Output Upper / Lower Limit Value Settings [PAR4 → FsL1/ FsH1]
If the transmission output value [AoM 1] is below the lower limit of the transmission output [FsL1], an output value
of 4 mA will be present. If the transmission output is between the lower limit [FsL1] and the upper limit [FsH1], a
certain proportional output value is transmitted in the range between 4 mA and 20 mA. If it exceeds the upper limit
[FsH1], an output value of 20 mA will be present. If the upper limit of the transmitter output [FsH1] is equal to the
lower limit of the transmission output [FsL1], the transmission output is 4 mA.
5.9 COMMUNICATION
This function is used by external systems (PC, GP, PLC, etc.) to monitor the controller. It can be used to transfer
data transferred to external devices. There can be no redundant unit addresses on the same communication line.
The communication cable must be a twisted pair that supports the RS485 standard.
Interface:
Type Description
Communication protocol Modbus RTU
Connection type RS485
Application standard EIA RS485 compliant
Maximum number of connections 31 unit (address: 01…99)
Synchronization method Asynchronous
Communication method 2-wire, half-duplex
Communication distance Max. 800 m
Communication speed 2400, 4800, 9600, 19200, 38400 bps
Communication response time 5…99 ms
Start bit 1-bit (x)
Data bit 8-bit (x)
Parity bit None, odd, even
Stop bit 1-bit, 2-bit
5.9.1 Unit Address Settings [PAR4 → ADRS]
5.9.2 BPS (Bits Per Second) Settings [PAR4 → BPS]
5.9.3 Communication Parity Bit [PAR4 → PRTY]
5.9.4 Communication Stop Bit Settings [PAR4 → STP]
5.9.5 Response Timeout Settings [PAR4→ RSwT]
5.9.6 Enable / Disable Communication Writing [PAR4→ COMW]
This function can change the parameter settings stored in the memory with the PC, GP, PLC, etc. to enable or
disable writing. Default setting: EnA.
5.10 OTHER FUNCTIONS
To access all functions and detailed settings of the device,
read the User’s and Programming Manual.
5.10.1 Heating MV Monitoring
5.10.2 Cooling MV Monitoring
5.10.3 Heating Current Monitoring [PAR1 → CT-A]
5.10.4 RUN/STOP [PAR1 → R-S]
5.10.4.1 Stop Control Output Settings [PAR5 → StMV]
5.10.4.2 Stopping the Alarm Output [PAR5 → StAL]
5.10.5 Multi SV
5.10.6 Digital Input
5.10.7 User Level Settings [PAR5 → USER]
5.10.8 SV Group Lock [PAR5 → LcSV]
5.10.9 Parameter Group Lock [PAR5 → LcP1/LcP2/LcP3/LcP4/LcP5]
5.10.10 Reset Parameter [INIT]
5.10.11 Password Settings [PAR5 → PWD]
6. ERROR CODES
The controller diagnoses the input signals for errors and displays the messages accordingly. These messages
inform the user of device problems. When the input value returns to the appropriate range, the alarm is deactivated
and the device returns to normal operation.
Message Input Description Output
HHHH
Temperature
sensor
Flashes at 0.5 second intervals when the
input value is above the input range.
Standard: Heating: 0%, cooling: 100%.
Heating and cooling:
heating: 0%, cooling: 100%.
Analog Flashes every 0.5 seconds if the input value
exceeds 5…10% of the upper or lower limit. Standard output
LLLL
Temperature
sensor
Flashes every 0.5 seconds if the input value
is below the input range.
Standard: Heating: 100%, cooling: 0%
Heating and cooling:
heating: 100%, cooling: 0%
Analog Flashes every 0.5 seconds if the input value
exceeds 5…10% of the lower or upper limit. Standard output
OPEN
Temperature
sensor
Flashes at 0.5 second intervals for input
disconnection. Sends out the set MV.
[PAR5 → ErMV]
Analog Flashes at 0.5 second intervals when F.S.
more than ±10%.
ERR Temperature
sensor
Flashes every 0.5 seconds when an error
has occurred in the setting and returns to the
screen before the error.
–
If the upper and lower limit scale settings are the same, ERR ashes twice and the ″Setting″ mode will be displayed.
For analog input, ±5% of the set upper / lower limit is extended. The analog output is also expanded by comparing
the input value. (Using a ±5% extension within the temperature range for a temperature sensor input.)
7. MAINTENANCE, REPAIR, STORAGE
The device does not require regular maintenance. The warranty card contains the terms and conditions. Before
returning the device for repairs, it must be cleaned thoroughly. The parts in contact with the medium may contain
harmful substances; therefore, they must be decontaminated. Our ofcial form (Returned Equipment Handling
Form) must be lled and enclosed in the parcel. Download it from our website www.nivelco.com. The device must
be sent back with a declaration of decontamination. A statement must be provided in the declaration that the de-
contamination process was successfully completed and that the device is clean from any hazardous substances.
Unused devices must be stored at –20…+60 °C (–4…+140 °F) ambient temperature and 35…85% RH ambient
humidity.
pmg511en23q03
June 2023
NIVELCO reserves the right to change anything in this manual without notice!
Download
User’s &
Programming
Manual
