Mazurczak MTR 3000 User manual

1
Installation and Operating Instructions for WG 41/02.07/
Temperature Controller MTR 3000 D-MBA 373a
Introduction
The microprocessor-based controller MTR 3000 is used for thermostatic temperature control. For this purpose, it has an input for a Pt 100 temper-
ature sensor.
The supply voltage for the controller is 230 V AC. The controller has three make contacts as its output.
°C
2
3
1
SET 1
MAZURCZAK
SET 2
Description
By setting the appropriate parameters, the controller can be programmed to execute many different functions.
The controller is programmed in three levels with the aid of the buttons on its front panel. Access to parameters which affect the safety of the system
is deliberately made difficult.
The first level permits access only to the setpoint and the alarm acknowledgement.
All regulation parameters (P2 - P32) can be set in the second level.
The third level permits programming of the basic functions (A1 – A92) of the controller.
UP button (red arrow)
Down button (blue arrow) This button is used to acknowledge an alarm.
SET 1
SET 1 button
Pressing this button displays set value S1.
If the button is not depressed, the actual value is displayed.
This button is also used for setting the parameters.
SET 2
SET 2 button
Pressing this button displays set value S2.
For details of changing the button assignments, see parameter A82 (standby mode, direct
switching of a contact).
Settings
First operating level
Displaying and adjusting the setpoints
The setpoint 1 (regulation contact 1) can be displayed by simply pressing the SET 1 button.
The setpoint 2 (regulation contact 2) can be displayed by simply pressing the SET 2 button.
With the Set button held down, the setpoint can be adjusted with the UP and DOWN buttons.

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General note
All values are stored in the non-volatile memory and are retained there even in the case of a power failure. When setting any value, always release
the UP or DOWN button before releasing the SET button. This applies to the setpoint and all other parameters.
Parameter/but
ton
Function Setting range Default
value
Your
setting
S1 / SET1 Setpoint for regulation contact K1 P4...P5 0.0 °C
S2 / SET 2 Setpoint for regulation contact K2 P4...P5 0.0 °C
Second operating level
Setting the regulation parameters
Pressing and holding the UP and DOWN buttons together for at least four seconds displays a list of regulation parameters (starting with P0). This list
can be rolled up and down with the UP and DOWN buttons.
To display the value for a selected parameter, press the SET 1 button. With the SET 1 button depressed, the value can be adjusted with the UP and
DOWN buttons. When all buttons are released, the new value is saved permanently. If no button is pressed within 60 seconds, the controller reverts
to its normal state.
Parameter Function Setting range Default value Your setting
P0 Actual value -
P1 Setpoint S2 / regulation contact 2
DeltaW regulation contact 2
P4...P5 if A5=0 (factory setting)]
-99...+99.9K if A5=1
10,0 °C/K
P2 Hysteresis, contact 1 0.1...99.0 K 1.0 K
P3 Hysteresis, contact 2 0.1...99.0 K 1.0 K
P4 Lower setpoint limit -99°C...P5 -99 °C
P5 Upper setpoint limit P4...999°C 999 °C
P6 Actual value correction -20.0...+20.0 K 0.0 K
P19 Disable setpoint adjustment 0: not disabled
1: disabled
0
P30 Lower limit for alarm -99...999°C/K -10°C
P31 Upper limit for alarm -99...999°C/K 120°C
P32 Hysteresis for alarm, asymmetrical 0.1...99.9 K 1.0 K
Parameter descriptions
P0 Actual value
Display of the current actual value. If parameter A32 is set to 1 to display the setpoint, the actual value can be displayed only with this parameter.
P1 Setpoint / DeltaW for regulation contact 2
Adjustment of the setpoint S2 for regulation contact 2 at the parameter level.
If parameter A5 is set to 1 (operation with DeltaW), the DeltaW value of the regulation circuit is displayed and can be adjusted.
P2/P3 Hysteresis for regulation contact 1/2
The hysteresis is symmetrical with respect to the setpoint (see Figs. 2 and 4).

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Fig. 1: Heating controller, asymmetrical hysteresis Fig. 2: Heating controller, symmetrical hysteresis
Fig. 3: Cooling controller, asymmetrical hysteresis Fig. 4: Cooling controller, symmetrical hysteresis
P4/P5 Lower/upper setpoint limit
The setpoints S1/S2 (and P1) can be set only within the limits defined here.
P6 Actual value correction
The value set here is added to the measured value from the sensor. The resulting value is displayed and acts as the basis for regulation.
P19 Disable setpoint adjustment
If this parameter is active, the buttons on the front panel are disabled.
We recommend that this be done after all adjustments.
In the disabled state, the setpoint cannot be adjusted with the buttons on the front panel. Any attempt to adjust the setpoint then results in the
message "---" on the display.
P30 Lower limit value for alarm
P31 Upper limit value for alarm
The alarm output can be used as a limit-value or bandwidth alarm. It has an asymmetrical hysteresis (see parameter P32). In both cases, the limit
values may be relative to setpoint S1 or absolute, i.e. independent of setpoint S1.
For a limit-value alarm, the hysteresis is asymmetrical inwards; for a bandwidth alarm, it is asymmetrical outwards (see Figs. 5 to 8)
P32 Alarm hysteresis, asymmetrical
The hysteresis is asymmetrical with reference to the selected limit value. Its function depends on the alarm definition.

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Third operating level
The third operating level can be accessed from the second level by scrolling through the parameter list until the last parameter (P32) is displayed and
pressing the UP button for at least 10 seconds. The message "PA" then appears on the display. Release the button.
Pressing the UP and DOWN keys together for at least four seconds then displays the parameter list for the third operating level (starting with A1).
The parameter values are displayed and adjusted exactly as in the second level.
The list can be rolled up and down with the UP and DOWN buttons.
To display the value for a selected parameter, press the SET button. With the SET button depressed, the value can be adjusted with the UP and
DOWN buttons. When all buttons are released, the new value is saved permanently. If no button is pressed within 60 seconds, the controller reverts
to its normal state.
Note:
If you want to adjust any A parameters, parameter A19 must first be set to "0" (=parameters not locked).
Para-
meter
Function Setting range Default value Your
setting
A1 Function of regulation contact 1 0: Heating contact
1: Cooling contact
0
A2 Function of regulation contact 2 0: Heating contact
1: Cooling contact
0
A3 Function of regulation contact 1 in case of
(sensor) fault
0: Off on fault
1: On on fault
0
A4 Function of regulation contact 2 in case of
(sensor) fault
0: Off on fault
1: On on fault
0
A5 Operation with setpoint or DeltaW for
regulation contact 2
0: Operation with setpoint
1: Operation with DeltaW
0
A8 Actual-value display mode (all parameter
values are displayed with a resolution of
0.1K)
0: Integer
1: Resolution 0.5K
2: Resolution 0.1K
0
A9 Weighting factor 0.50 ... 1.50 1.00
A19 Parameter locking 0: Parameters not locked
1: A parameters locked
2: A and P parameters locked
1
A20 Button click 0: No button click
1: Button click on 1
A30 Function of alarm output 0: Limit-values alarm, relative
1: Limit-value alarm, absolute
2: Bandwidth alarm, relative
3: Bandwidth alarm, absolute
4: Limit-value alarm, relative,
alarm contact inverted
5: Limit-value alarm, absolute,
alarm contact inverted
6: Bandwidth alarm, relative,
alarm contact inverted
7: Bandwidth alarm, absolute,
alarm contact inverted
1

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Para-
meter
Function Setting range Default value Your
setting
A31 Special function on alarm 0: Inactive
1: Display blinks
2: Buzzer sounds
3: Display blinks and buzzer sounds
4: As for 3, buzzer can be acknowledged
5: As for 4, buzzer sounds again after
10 minutes
6: As for 4, buzzer sounds again after
30 minutes
3
A32 Type of display 0: Actual value
1: Setpoint S1
0
A33 Not used 0: Disabled 0 0
A40 Hysteresis mode,
regulation contact 1
0: Symmetrical
1: Asymmetrical
0
A41 Hysteresis mode,
regulation contact 2
0: Symmetrical
1: Asymmetrical
0
A50 Minimum "On" time, contact 1 0…600 s 0 s
A51 Minimum "Off" time, contact 1 0…600 s 0 s
A52 Minimum "On" time, contact 2 0…600 s 0 s
A53 Minimum "Off" time, contact 2 0…600 s 0 s
A54 Delay after power on 0…600 s 0 s
A55 Mutual delay, regulation contacts 1 and 2 0…600 s 0 s
A56 Alarm suppression after power on 0…60 min 20 min
A60 Temperature sensor 11:
12: PT100, three-wire connection 12
A70 Software filter 1: Disabled
Average over:
2: 2 measured values (approx. 0.6s)
4: 4 measured values (approx. 1.2s)
8: 8 measured values (approx. 2.4s)
16: 16 measured values (approx. 4.8s)
32: 32 measured values (approx. 9.6s)
64: 64 measured values (approx. 19.2s)
128: 128 measured values (approx. 38.4s)
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A80 Temperature scale and display in standby
mode
0: Fahrenheit (AUS)
1: Celsius (AUS)
2: Fahrenheit (OFF)
3: Celsius (OFF)
1
A81 Not used 0: No function 0 0
A82 Function of button SET 2 0: Disabled
1: Regulator On/Off (standby)
2: Setpoint S2 (parameter P1)
3: Switch relay directly, off on standby
4: Switch relay directly, unaffected by
standby
2
A83 Function of unlabelled button 0: Disabled 0 0

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Para-
meter
Function Setting range Default value Your
setting
A90 Output connection, K1 0: No connection
1: Connect to regulation contact 1
2: Connect to regulation contact 2
3: Connect to alarm contact
4: Connect to buzzer function
5: Connect to button 3 or 5
1
A91 Output connection, K2 0: No connection
1: Connect to regulation contact 1
2: Connect to regulation contact 2
3: Connect to alarm contact
4: Connect to buzzer function
5: Connect to button SET 2
2
A92 Output connection, K3 0: No connection
1: Connect to regulation contact 1
2: Connect to regulation contact 2
3: Connect to alarm contact
4: Connect to buzzer function
5: Connect to button SET 2
3
Pro Program version - -
A1/A2 Function of regulation contacts ½
Regulation contacts 1 and 2 can be set separately to act as a heating contact or a cooling contact. If set as a heating contact, the contact closes if the
actual temperature is less than the setpoint. For use as a cooling contact, the function is inverted. See also Figs. 1 - 4.
A3/A4 Function of regulation contacts 1/2 in the case of a sensor fault
Regulation contacts 1 and 2 switch to the position specified here in the case of a sensor fault. If a fault is detected in the parameter memory (display:
EP), which means that the saved settings cannot be used, regulation contacts 1 and 2 are switched to a state where no current flows.
A5 Operation with setpoint or DeltaW for regulation contact 2
This parameter determines whether the controller operates with two independently adjustable contacts (A5=0, operation with setpoint, factory
setting) or with two mutually linked contacts (A5=1, operation with Delta W).
This parameter always affects regulation contact 2.
A8 Display mode
The actual value can be displayed as an integer or with one digit after the decimal point (resolution 0.5 °C or 0.1 °C). If a resolution of 0.5 °C is
selected, the actual value is rounded up or down. All parameter settings and setpoints are always displayed with a resolution of 0.1 °C.
A9 Weighting factor
The actual value can be weighted with the aid of this parameter. The measured value is multiplied by this factor and the resulting value is displayed
and used for regulation.
A19 Parameter locking
With the setting A19=0, all parameters are accessible.
With the setting A19=1, all A parameters are locked except for A19 itself (factory setting).
With the setting A19=2, all A parameters and all P parameters are locked.
When parameters are locked, they cannot be changed with the buttons on the front panel. Any attempt to do this results in the message ”---" on the
display.
A30 Function of alarm output
The state of the alarm output depends on actual values with respect to the upper and lower limit values (see parameters P30 and P31). With this
parameter, you can select whether the alarm is activated when the actual temperature lies between the two limit values or when the temperature lies
outside the limit values. In the case of a sensor fault, the alarm is activated regardless of this setting. The output can also be inverted. See Figs. 5
to 8.

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Fig. 5: Limit-value alarm, alarm contact normal
A30=0: relative limits
A30=1: absolute limits
Fig. 6:Bandwidth alarm, alarm contact normal
A30=2: relative limits
A30=3: absolute limits
Fig. 7: Limit-value alarm, alarm contact inverted
A30=4: relative limits
A30=5: absolute limits
Fig. 8:Bandwidth alarm, alarm contact inverted
A30=6: relative limits
A30=7: absolute limits
A31 Special function for limit-value or bandwidth alarm
Here, you can select whether or not the display blinks and the buzzer sounds in the case of a limit-value or bandwidth alarm. The factory setting is
with this function active.
A sensor alarm (display: F1L or F1H) is always signalled by a blinking display and the buzzer.
A32 Type of display
If A32=0 is set, the actual value is displayed. If A32=1 is set, setpoint S1 is always displayed and the actual value can then be displayed only with the
aid of parameter P0 (second operating level).
A33 Not used
A40 Hysteresis mode, regulation contact 1
A41 Hysteresis mode, regulation contact 2
This parameter permits selection of a symmetrical or asymmetrical hysteresis at the switching point. An asymmetrical hysteresis lies below the
setpoint for the heating function and above the setpoint for the cooling function. A symmetrical hysteresis (factory setting) is effective on both sides
of the setpoint, regardless of the selected switching function. See also Figs. 1 - 4.

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A50 Minimum "On" time, regulation contact 1
A51 Minimum "Off" time, regulation contact 1
A52 Minimum "On" time, regulation contact 2
A53 Minimum "Off" time, regulation contact 2
These parameters make it possible to ensure that the output contact remains on or off for a specified time in order to reduce the switching frequency.
The time specified here is the total minimum time for the on or off state of the contact (factory setting: 0 s).
A54 Delay after power on
With this parameter, activation of regulation contacts 1 and 2 can be delayed by a specified period after the mains voltage is switched on.
A55 Mutual delay, regulation contacts 1 and 2
This parameter permits the activation of regulation contact 1 to be delayed by a specified period with respect to activation of regulation contact 2 or
vice versa, depending on which contact is activated first.
A56 Alarm suppression after power on
This parameter permits the activation of the alarm contact to be delayed by a specified period after the mains voltage is switched on (factory setting:
20 minutes).
A60 Temperature sensor
This parameter permits selection of the type of PT100 temperature sensor connection (factory setting: three-wire connection).
A70 Software filter
The measured value is averaged over the number of measuring cycles specified here. This average value is displayed and used for regulation. A70=1
deactivates the software filter.
A80 Temperature scale
The temperatures can be displayed in Fahrenheit or Celsius (factory setting). Note that the values and setting ranges for the parameters and setpoints
remain unchanged when the scale is changed. If, for example, a controller whose setpoint is set to 0°C is modified to display the temperatures in
Fahrenheit, the setpoint is then interpreted as 0 °F, corresponding to a temperature of -32° C.
In addition, you can specify whether the controller displays the word AUS (German) or OFF (English) when it is in standby mode.
A81 Not used
A82 Function of button SET 2
Setpoint S2 (parameter P1)
A83 Function of unlabelled button
The button is disabled.
A90 Output connection, relay K1
A91 Output connection, relay K2
(A92 No connection)
Depending on the hardware, the relays can be connected to various signals from the regulator:
Regulator outputs
Regulation contact 1 Regulation circuit set with the parameters S1, P2, A1
Regulation contact 2 Regulation circuit set with the parameters P1, P3, A2
Alarm Alarm circuit set with the parameters P30, P31, P32, A30
Buzzer function As for internal horn, intermittent, can be acknowledged with the DOWN button (affected by parameter A31)
Status messages
Display Fault Action
F1L Sensor fault (short circuit) Check the sensor
F1H Sensor fault (open circuit) Check the sensor
– – – Parameters are locked See parameter P19 or A19
Blinking display Temperature alarm (see A31)
EP Loss of data in parameter memory Have the controller repaired (regulation contacts 1 and 2
are set to no-current position)

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Technical Data
Measuring inputs: F1: Temperature sensor Pt100 (DIN IEC 751, three-wire connection),
measuring range Pt100 (Class B): -60.0 °C...400 °C (with suitable sensor and
<1 Ohm wire resistance), accuracy: +/- 0.5 K +/- 0.5% at 25 °C (not including any sensor errors),
+/- 1K +/- 0.5% over the entire temperature range 0 to 55 °C (not including any sensor errors)
Display and indicators: Three-digit red LED display, 13 mm high, for temperatures
Three LEDs, diameter 3 mm, for status indication
LED 1: regulation contact 1
LED 2: regulation contact 2
LED 3: Alarm
Outputs: K1: Relay, 250 V~, maximum switched current 8 A, (cosϕ=1),
maximum continuous current 6 A, make contact, suitable for electric motors up to 0.5 HP. Function: see parameter A90
K2: Relay, 250 V~, maximum switched current 8 A, (cosϕ=1),
maximum continuous current 6 A, make contact, suitable for electric motors up to 0.5 HP. Function: see parameter A91
K3: Relay, 250 V~, maximum switched current 6 A, (cosϕ=1),
maximum continuous current 3 A, make contact, suitable for electric motors up to 0.5 HP. Function: see parameter A92
Supply voltage: 230 V~ 50/60 Hz, maximum power consumption 4 VA
Terminals: 12-pole screw-terminal plug strip, spacing 5.0 mm, for cables up to 2.5 mm²
Temperature range: -99 to 999 °C, factory setting: alarm if actual value is below -10 °C or above 120 °C
Ambient conditions: Storage temperature –20 °C...+70 °C
Operating temperature 0...55 °C
Maximum relative humidity 75% (no condensation)
Degree of protection: IP65 from front, IP00 from rear
Installation: Designed for panel mounting
Front-panel dimensions 84 x 42 mm
Panel aperture 67.5 x 31.5 mm
Installation depth approx. 85 mm
Secured with screw-on bow
Install flat gasket between panel and front frame of controller
Weight: approx. 140 g (without sensor)
Terminal assignments: