Strack Z7520 User manual

MULTIZONE TEMPERATUR CONTROLLER
Z7520
OPERATING INSTRUCTION

ITemperaturregelgeräte
2STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Dear customer,
thank you for having chosen a STRACK temperature controller. This high
quality device has been produced in our ISO 9001-certified factory and
was shipped to you after a thourough quality test.
Unpack Check the device for eventual shipping damage.
Don‘t connect damaged equipment !
Claim the damage with your shipping agent.
Read Please read carefully this operating manual before
bringing the device into service!
Connect Wiring the device should be done by your qualified
electrician following the instructions given in
this manual.
Warranty period is 2 years and includes all malfunctions clearly
caused by material, production or design failures. Repair
or replacement in this case are free of charge, you only
pay the shipping cost to our factory. No further claims or
requirements can be accepted, especially for conse-
quential losses or damages.
Service We help you quickly and at resonable costs. Just send us
the device with repair order and precise description of the
malfunction: Carefull packaging is essential for a safe shipment !
Small repairs up to 80,- EUR are done immediately without
formal offer. In any other case, we contact you as soon as
possible to determine the next steps.
To facilitate your orientation in this manual, you find the
following symbols :
Safety advice
General information
Wiring- and installing advice

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Table of content
Chapter page
1. Features
2. Safety advice
3. Specification
4. Installation and wiring
5. Operation
5.1 Main switch
5.2 Display and keys
5.3 Setting of desired temperature
5.4 Configuration level 1 = Working level:
Shows powersetting, alarm values, autotuning
5.5 Configuration level 2 = Program level:
Control mode, adaptation to controlled system,
heat/cool, switching time, P-, I-, D-values,
upper / lower setpoint limits, cycle time delay
cooling
5.6. Configuration level 3 = Program level:
Manual powersetting, alarm, analog output,
softstart-time, softstart-powersetting
5.7 Configuration level 4 = Program level:
Key lock, thermocouple type, °C or F, offset,
Power limiter, default settings
6. Annex
4
5
6
8
11
11
12
14
15
16
19
21
24

Operating instruction Z7520 Compact-temperature-controller
ITemperaturregelgeräte
4STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
1. Features
Microprocessor based compact temperature controller
with the following features:
- Integrated power supply for 1 or 2 zones
- Usable for heating or cooling
- PID-caracteristic, 2-point-controller
or manual constant powersetting
- Auto-adaptation to the caracteristic of
every zone (autotuning) with 2 available
PID-curves
- Available for thermocouples type J
or K or Pt100– resistance sensor
- 2 programmable alarms per zone,
wired to common alarm output
- Programmable softstart

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
2. Safety advice
1. Please read this advice carefully.
2. Keep this operations manual for use near the machine.
3. This is an electral device driven with high voltage, please respect
the usual VDE- and safety regulations.
Mains voltage and every voltage greater than 42 volts is
dangerous!
4. Connect to a power source following the identification plate on
the device.
5. Avoid contamination of the interior with debris, liquids or sprays.
Risk of short-circuit, fire or electric shock !
6. Before dismantling the controller insert from the frontpanel,
remove the blocking screw (upper side of the carter, red
point), switch mains power off and prevent unintentional
restart.
Put blocking screw in place after having restored the insert!
Non-compliance with this advice can cause contact to
dangerous high voltage inside the device!
7. Don‘t place the device on hot machine surfaces or near radiation
sources of hot parts.
8. Keep the power connection cable clear of hot parts or sharp
edges.
9. Disconnect the power cable immediately, if
- it was damaged,
- liquid or parts penetrated the device,
- the device was damaged by falling down or other mechanical
impacts,
- you have the suspicion of any malfunction.

Operating instruction Z7520 Compact-temperature-controller
ITemperaturregelgeräte
6STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
10. The operator must be thoroughly instructed by a qualified
person for the work to be carried out.
11. Intervention at the device must only be carried out by qualified
staff members.
For repair, the device should be send back to our factory.
Attempted self-repair causes immediate termination of the
warranty period !
If spare parts are required, only parts recommended
by the supplier must be used. The use of other parts may
cause damage and/or hazard for operation personnel.
12. Please respect further recommandations and warnings
described in this operations manual.
3. Specification
Mains voltage:
100...240V +/* 10%, 50/60Hz
Nominal rating / nominal current:
Regler 2.300W / 10A per zone max.16A bei 2 zonen
Fuses
Heater: 10A FF, 6,3x32mm per zone
Controller: 500mA MT, 5x20mm per zone
Alarm output:
Relay max. 250V/5A , common output

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
3. Specification
Input:
- If ordered for thermocouple: type J oder K
- If ordered for resistive sensor: Pt100 2- or 3-wires
Accuracy: 0,5% FS
Power control:
0...100% proportional, zero-voltage switching
Solid state relay rated up to 50A
Display:
7-segment LED-display 8mm green (actual value) and red
(set-point), signal-LEDs red for output and alarm.
Soft-start:
Softstart-time (min) and –powersetting (0M100%) programmable.
Heating- and TC-connection:
6pol. + PE (1 zone) or 10-pol. +PE (2 zones) industrial heavy duty
connector.
16A/400V
Alarm connector:
7-pol. + PE for alarm output
Floating relay contacts, wired on 1 common output
Dimensions: 217 x 110 x 250mm (W x H x D)
Colour:
Powder coating RAL 7035 (Bottom incl. front and back)
RAL 3000 (Upper casing)
Environmental conditions:
Degree of pollution (VG) 2 following EN610101
Ambient temperature 0 - 55°C
Humidity 10 - 80% (without condensation)

Operating instruction Z7520 Compact-temperature-controller
ITemperaturregelgeräte
8STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
4. Installation and wiring:
4.1 Installation:
The installation site must provide easy access for the operator
without hazard. Sufficient mechanical stability must be
guaranteed, also secure the device from slipping on the
installation surface.
Protect from heat, radiation and allow free air circulation.
Protect power cable from heat and mechanical stress.
Do not place the device on hot surfaces.
4.2 Connection of the power supply:
This device must only be operated at the voltage indicated on
the name plate. Please check for a sufficient fuse protection of
the power outlet foreseen for the device.
Protective earth conductor must be provided
4.3 Connection of heater and thermocouples:
Please compare the connecting diagram on the temperature
controller (backside, near the outlet) with the diagram of the
mould. Inappropriate connection can destroy controller, heater
and TC!
Available mould connecting cables contain heater–and FeCu-Ni
compensation wires for TC. Never use compensation wires to
connect a heater.

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Heater- and TC-wiring
for 1 zone (Z 7520-1) for 2 zones (Z 7520-2)
following NR-Norm NR6 following NR-Norm NR10
Other pin assignment schemes on request
(see Annex page 24 of this operations manual)
4.4 Alarm output
For every zone, two alarm functions can be programmed
individually. These alarms operate 2 common floating contacts
as cumulative exits for both zones together, they are wired on
a 7-pin connector on the back side.
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 11
Heater– and TCwiring
for 1 zone (NR2007.1) for 2 zones (NR2007.2)
following NRNorm NR6 following NRNorm NR10
Other pin assignment schemes on request
(see Annex page 29 of this operations manual)
5.4 Alarm output
For every zone, two alarm functions can be pro
grammed individually. These alarms operate 2
common floating contacts as cumulative exits for
both zones together, they are wired on a 7pin
connector on the back side.
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 11
Heater– and TCwiring
for 1 zone (NR2007.1) for 2 zones (NR2007.2)
following NRNorm NR6 following NRNorm NR10
Other pin assignment schemes on request
(see Annex page 29 of this operations manual)
5.4 Alarm output
For every zone, two alarm functions can be pro
grammed individually. These alarms operate 2
common floating contacts as cumulative exits for
both zones together, they are wired on a 7pin
connector on the back side.

Operating instruction Z7520 Compact-temperature-controller
ITemperaturregelgeräte
10 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Front side Z 7520-2
Back side Z 7520-2

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
5. Operation
5.1 Main switch
Before wiring the device, make sure that the main
switch is in position OFF „0“. Herewith, all poles are
disconnected from the mains voltage.
The main switch can be locked following EN81-80.
Before working on the device itself or on a tool connected
to it, the switch must be locked to prevent the device
against unintentional restart.
This can be done by retracting the power cable and
securing it against re-connecting or by locking the
main switch with a personal lock.
After having finished the wiring completely, switch
the device on with main switch in position ON „1“.

Operating instruction Z7520 Compact-temperature-controller
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12 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
14
5.2 Display and keys
PV : Normal operation ACTUAL temperature
SV : Normal operation SETPOINT
temperature
Both available 4digits or 3digits with one
digit after the decimal point (see page 26)
OUT1 : LED Heat– or Cooling output 1 active
AL1 : LED Alarm 1 active
Failure : Thermocouple break
5.2 Display and keys

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 15
UPkey : Increases the value of the
selected parameter
DOWNkey : Decreases the value of the
selected parameter
Press „Down“key for 2 sec. =
Controller OFF / ON
Press „UP“ and „DOWN“key
simultaneously for 2 sec. = Start / Stop
Autotuning
ENTERkey : Selects the parameters to
be modified, acknowled
ges the input.
The selected digit flashes and can be
modified with the „UP“ and „DOWN“ keys.
Press the „ENTER“ key again to jump to
the next digit.
No input for 15 sec. = back to normal
operation

No acknowledgment of the input in 15
sec. = automatically enters the change !

Operating instruction Z7520 Compact-temperature-controller
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14 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
16
LEVELkey : Selects the menu level
up to
    

No input for 15 sec. = back to normal
operation
Press „LEVEL“key once within the
selected menu level =
Top of Page in this level
Press „LEVEL“key 2 sec. within the
selected menu level = back to normal
operation
5.3 Adjustment of the SETPOINT temperature
Adjusting the SETPOINT temperature can be done
without entering any specific menu level.
 Press the „ENTER“key until the
selected digit in the SVdisplay flashes.
 Adjust the value with the „UP“ or
„DOWN“keys as needed.
 Press the „ENTER“key to acknowledge
and to go to the next digit.
 After having finished, press the
„LEVEL“key once (or no entry for 15
sec. = automatic acknowledgment)
5.3 Adjustment of the SETPOINT temperature

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 17
5.4 Configuration level 1 = Working level
Select the menu level with the
„Level“key
> Display „
Select the parameter with the „UP“ or
„DOWN“keys
Display actual power setting 0.100%
(outPut Percentage 1)
Alarm 1 signal contact
(ALarm low value)
Process Low temperature 0.99°C
Depends on Alarm configuration PLE3
Adjustment following 5.2 SETPOINT
temperature
Alarm 1 signal contact
(ALarm high value)
Process High temperature 0.99°C
Depends on Alarm configuration PLE3
Adjustment following 5.2 SETPOINT
temperature
5.4 Configuration level 1 = Working level

Operating instruction Z7520 Compact-temperature-controller
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16 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
18
 Autotuning :
 Start Autotuning
 No / Stop Autotuning
Back to Top of Page / 1. parameter
5.5 Configuration level 2 = Program level
Select the menu level with the
„Level“key
> Display „
Select the parameter with the „UP“ or
„DOWN“keys
Control mode
(Control) for Output 1 and 2 (option)
o = on/off (2pointcontroller) P= PIDcontrol
Output 1
Output 2 (Opt.)
PID PID
on/off PID
PID on/off
on/off on/off

5.5 Configuration level 2 = Program level

Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 19
Type of PIDcaracteristic (Control Mode)
for output 1
SELF = Selftuning
At = Autotuning
Selftuning : Slow, no overshoot, less
precise
Autotuning : Quick, overshoot accepted,
more precision
Heat / Cool
(type Heat Cool) for Output 1 and
2 (option)
Output 1
Output 2 (Opt.)
Heat Cool
Cool Heat
Cycle time output 1
(Cycle time 1)
0  60 sec.
Proportional band output 1
(Prop.band 1 or Autotuning P.band 1)
Depending on type of PID
caracteristic (see above)
For Selftuning 0  100 °C


Operating instruction Z7520 Compact-temperature-controller
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18 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
20
Integral time output 1
(int.time 1 or Autotuning i.time 1)
Depends on type of PID
caracteristic (see above)
0  250 / 0.1 sec.
Differential time output 1
(diff.time 1 or Autotuning d.time 1)
Depends on type of PID
caracteristic (see above)
0  250 / 0.1 sec.
Setpoint lower limit
(Low Limit)
in °C / F
Setpoint upper limit
(High Limit)
in °C / F
Cycle time delay for cooling
in °C / F


Operating instruction Z7520 Compact-temperature-controller
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STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 21
5.6 Configuration level 3 = Program level
Select the menu level with the
„Level“key
> Display „
Select the parameter with the „UP“ or
„DOWN“keys
Manual powersetting (dimmer)
(MAnual)
no : deactivated
yes: activated
Setting Alarm 1
(ALarm Program 1)
No alarm
Lower limit contact
Upper limit contact
Lower + upper lim.con.
Standby lower lim.con.
Standby low. + hi. lim.c.

Bedienungsanleitung Z7520
22
Invertierter Unterer GK
Invertierter Oberer GK
Invertierter Unt. + Ob.GK
Absolutwert
Invertierter Absolutwert
Einstellung Hysterese Alarm 1
0  10 °C / F
Analogausgang (Option)
Unterer Grenzwert
In 0,1 mA
Analogausgang (Option)
Oberer Grenzwert
In 0,1 mA 
5.6 Configuration level 3 = Program level
Bedienungsanleitung Z7520
STRACK NORMA GmbH & Co. KG 21
5.6 Bedienebene 3 = Programmebene
Anwahl der Bedienebene mit der
„Level“Taste
> Display „
Anwahl des Parameters mit den „Größer“
bzw. „Kleiner“Tasten
Anwahl Stellerbetrieb
(MAnual)
no : Ausgeschaltet
yes: Eingeschaltet
Einstellung Alarm 1
(ALarm Program 1)
Kein Alarm
Unterer Grenzkontakt
Oberer Grenzkontakt
Unterer + Oberer Gr.K.
Standby Unterer Gr.K.
Standby Unt. + Ob. GK

No alarm
Lower limit contact
Upper limit contact
Lower + upper limit contact
Standby lower limit contact
Standby lower + hi. limit contact
Inverted lower limit contact
Inverted upper limit contact
Inverted lower + hi. limit contact
Absolute value
Inverted absolute value

Operating instruction Z7520 Compact-temperature-controller
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20 STRACK NORMA GmbH & Co. KG · Königsberger Str. 11 · D-58511 Lüdenscheid · Tel [phone] · www.strack.de
08.2018
Operations manual Z7520
22
Inverted lower limit con.
Inverted upper limit con.
Inverted low + hi. lim.c.
Absolute value
Inverted absolute value
Hysteresis Alarm 1
0  10 °C / F
Analogue output (Option)
Lower limit
in 0,1 mA
Analogue output (Option)
Upper limit
in 0,1 mA
Operations manual Z7520
STRACK NORMA GmbH & Co. KG 25
Softstart duration
(SoftStart time)
0  60 min
Softstart powersetting
(SoftStart Percentage)
0  100%
5.7 Configuration level 4 = Program level
Select the menu level with the
„Level“key
> Display „
Select the parameter with the „UP“ or
„DOWN“keys
Key lock
0000  0044
Last digit :  levels up to
PLE  permitted
Tens digit : levels up to
PLE  permitted
Type thermocouple
(see next page)