LAE AC1-2W Digital Thermostat Instruction Manual

1

2

reference instrument.  

■ Exit from calibration by pressing button  

TECHNICAL DATA  

REF; HEA Refrigerating control (REF) or heating control mode (HEA) for the auxiliary output.  

2CH  

2HY  

2T0  

.

AC1-2W INSTRUCTION FOR USE  

0...19.9°  

Differential of thermostat 2. With 2HY=0 the auxiliary output always remains off.  

Power supply  

CONFIGURATION PARAMETERS  

Thank you for having chosen a LAE electronic product. Before installing the instrument, please read these instructions carefully  

to ensure maximum performance and safety.  

AC1-2W…D  

AC1-2W...E  

AC1-2W...U  

12Vac/dc ±10%, 2W  

0...30min  

Minimum off time.  

230Vac±10%, 50/60Hz, 2W  

115Vac±10%, 50/60Hz, 2W  

■ To get access to the parameter configuration menu, press button  

+

for 5 seconds.  

After output 2 has been turned off, it remains inactive for 2T0 minutes regardless of the temperature  

value measured.  

DESCRIPTION  

INDICATION  

■ With button  

or  

select the parameter to be modified.  

■ Press button  

■ By keeping button  

■ When button  

to display the value.  

OUT1  

Channel 1 output  

0...30min  

Minimum on time.  

2T1  

2PF  

Relay outputs (AC1-2W..R..)  

pressed, use button  

or  

to set the desired value.  

After output 2 has been turned on, it remains active for 2T1 minutes regardless of the temperature  

value measured.  

OUT2 Channel 2 output  

OUT1  

OUT2  

8(3)A  

8(3)A  

is released, the newly programmed value is stored and the following parameter is displayed.  

■ To exit from the setup, press button  

or wait for 30 seconds.  

L1  

Channel 1 setpoint modification  

ON/OFF  

Auxiliary output state in case of probe failure.  

SSR drive (AC1-2W..F..)  

PAR  

RANGE DESCRIPTION  

L2  

Channel 2 setpoint modification  

Alarm  

NON;  

ABS;  

REL  

Alarm threshold management.  

ATM  

OUT1  

OUT2  

15mA 12Vdc  

15mA 12Vdc  

NON : all temperature alarms are inhibited (the following parameter will be SB).  

ABS : the values programmed in ALA and AHA represent the real alarm thresholds.  

REL : the values programmed in ALR and AHR are alarm differentials referred to 1SP and 1SP+1HY.  

1°C;  

2°C;  

°F  

Readout scale (see table of input specifications)  

Caution: upon changing the SCL value, it is then absolutely necessary to reconfigure the param-  

eters relevant to the absolute and relative temperatures (SPL, SPH, 1SP, 1HY etc..)  

SCL  

Info / Enter button  

Modify Setpoint 1 / Decrease button  

Inputs  

see table of input specifications  

ON  

ON  

-50°...SPH Minimum limit for 1SP setting  

SPL  

SPH  

1SP  

1CM  

Exit / Stand-by button  

Increase / Modify Setpoint 2 button  

T[°]  

T[°]  

SPL...150° Maximum limit for 1SP setting.  

OFF  

O

F

F

Measurement range  

see table of input specifications  

1SP 1SP+1HY+AHR  

1SP-ALR  

SPL... SPH Setpoint (value to be maintained in the room).  

1SP+AHR  

1SP-1HY-ALR  

1SP  

Temperature alarm with relative thresholds,  

refrigerating control (ATM=REL, 1CH=REF)  

Fig.1 - Front panel  

Temperature alarm with relative thresholds,  

heating control (ATM=REL, 1CH=HEA).  

HY; PID  

Control mode.  

INSTALLATION  

With 1CM=HY you select control with hysteresis: parameters 1HY, 1T0 and 1T1 are used.  

With 1CM=PID you select a Proportional-Integral-Derivative control mode: parameters 1PB, 1IT,  

1DT, 1AR, 1CT will be used.  

Measurement accuracy  

see table of input specifications  

-50°...AHA Low temperature alarm threshold.  

ALA...150° High temperature alarm threshold.  

■ The AC1-2W sizes 110x75x55 mm (WxHxD). Fix the plate to the panel using 2 cheese-headed screws with 4 or 5 mm diameter  

and then apply the instrument casing to the plate. This should be done for vertical panels and for correct positioning of the  

instrument with the outlets at the bottom.  

■ Make sure that electrical connections comply with the paragraph “wiring diagrams”. To reduce the effects of electromagnetic  

disturbance, keep the sensor and signal cables well separate from the power wires.  

ALA  

Operating conditions  

-10 … +50°C; 15%...80% r.H.  

REF; HEA Refrigerating (REF) or Heating (HEA) control mode.  

1CH  

AHA  

ALR  

AHR  

0...19.9°  

OFF/ON thermostat differential. With 1HY=0 the output is always off.  

1HY  

-12.0...0°  

0...12.0°  

Low temperature alarm differential.  

With ALR=0 the low temperature alarm is excluded.  

ON  

■ Place the probe T1 inside the room in a point that truly represents the temperature of the stored product.  

ON  

CE (Reference Norms)  

EN60730-1; EN60730-2-9;  

EN55022 (Class B); EN50082-1  

OPERATION  

DISPLAY  

High temperature alarm differential.  

With AHR=0 the high temperature alarm is excluded.  

OFF  

OFF  

1SP 1SP+1HY T[°]  

1SP-1HY 1SP  

T[°]  

During normal operation, the display shows either the temperature measured or one of the following indications:  

Front protection  

IP55  

0...120min Delay before alarm temperature warning.  

ATD  

ON/OFF refrigerating control  

(1CM=HY, 1CH=REF)  

ON/OFF heating control  

(1CM=HY, 1CH=HEA)  

Controller in stand-by  

Controller in autotuning  

In tuning: timeout1 error  

In tuning: timeout2 error  

In tuning: overrange error  

NO/YES  

ST1/SN4  

Stand-by button enabling.  

SB  

Probe T1 overrange or failure  

Room high temperature alarm  

Room low temperature alarm  

0...30min  

0...30min  

Minimum off time.  

1T0  

1T1  

1PB  

Sensor input selection (see table of input specifications).  

INP  

After output 1 has been turned off, it remains inactive for 1T0 minutes regardless of the  

temperature value measured.  

In the models AC1-2WT... only.  

MENU INFO  

The information available in this menu is:  

Minimum on time. (the following parameter will be 1PF).  

After output 1 has been turned on, it remains active for 1T1 minutes regardless of the temperature  

value measured.  

-19.9...RHI Minimum range value (in the models AC1-2WA… only)  

RLO  

RHI  

RLO takes the minimum value measured by the transmitter (i.e. the value matching 0V).  

Maximum temperature recorded  

Minimum temperature recorded  

Keypad state lock  

RLO...99.9 Maximum range value (in the models AC1-2WA… only)  

RHI takes the maximum value measured by the transmitter (i.e. the value matching 1V)  

0...19.9°  

Proportional bandwidth.  

Overshoot  

Access to menu and information displayed.  

■ Press and immediately release button  

Steady-state error  

-12.5...12.5° Probe T1 offset.  

OS1  

TLD  

SIM  

.

Temperature control takes place by changing the  

ON time of the output: the closer the temperature  

to the setpoint, the less time of activation. A small  

proportional band increases the promptness of  

response of the system to temperature variations,  

but tends to make it less stable.  

proportional control stabilises the temperature  

within the proportional band but does not cancel  

the deviation from setpoint.  

1SP  

■ With button  

or  

select the data to be displayed.  

1...30min  

0...100  

Delay for minimum temperature (TLO) and maximum temperature (THI) logging.  

Display slowdown  

■ Press button  

to display value.  

■ To exit from the menu, press button  

Reset of THI, TLO recordings  

or wait for 10 seconds.  

1PB  

Process  

1...255  

AC1-2W address for PC communication  

ADR  

■ With button  

■ Display the value with button  

■ While keeping button pressed, use button  

CHANNEL 1 SETPOINT (display and modification of desired temperature value)  

■ Press and release button : the LED L1 blinks, the display shows 1SP for 1 second and then the setpoint associated value.  

■ Press buttons or to set the desired value (adjustment is within the minimum SPL and maximum SPH limit).  

■ To store the new value press button , or wait for 10 seconds.  

or  

select the data to be reset.  

A

purely  

temperature  

.

.

INPUT SPECIFICATIONS  

Time  

With 1PB=0 the output is always off.  

RANGE [MEASUREMENT ACCURACY]  

Overshoot  

0...999s  

Integral action time.  

MODEL  

INPUT  

1IT  

SCL=1°C  

SCL=2°C  

SCL=°F  

---  

■ To go back to normal mode without saving the new value, press  

.

The steady-state error is cancelled by inserting an  

integral action. The integral action time, determines  

the speed with which the steady-state temperature  

is achieved, but a high speed (1IT low) may be the  

cause of overshoot and instability in the response.  

With 1IT=0 the integral control is disabled.  

1SP  

AC1-2WA..  

0÷1V  

RLO÷RHI [< ± 3mV]  

CHANNEL 2 SETPOINT  

■ With the auxiliary output set as thermostat control (OAU=THR), it’s possible to modify setpoint 2 during the normal operation  

PTC 1000 Ω -50/-19.9 ÷ 99.9/150°C  

(LAE ST1..) [<±0.3°C(-30÷130°),±1°C] [<±0.3°C(-30÷130°), ±1°C] [< ±0.6°F(-20÷260°),±2°F]  

-50 ÷ 150°C  

-60 ÷ 300°F  

INP=ST1  

INP=SN4  

of the controller.  

■ Press and release button  

1PBx1AR%  

integral control  

action area  

1PB  

: the LED L2 blinks, the display shows 2SP for 1 second if setpoint 2 is an absolute threshold  

(2SM=ABS), alternatively the display shows 2DF, if setpoint 2 is a threshold relative to setpoint 1 (2SM=REL), then the value  

AC1-2WT...  

Process  

NTC 10K Ω -40/-19.9 ÷ 99.9/125°C -40 ÷ 125°C -40 ÷ 260°F  

(LAE SN4..) [<±0.3°C(-40÷100°),±1°C] [<±0.3°C(-40÷100°),±1°C] [<±0.6°F(-40÷210°), ±2°F]  

temperature  

associated to the parameter appears.  

■ Press buttons  

■ To store the new value press button  

■ To go back to normal mode without saving the new value, press  

or  

to set the desired value.  

or wait for 10 seconds.  

Time  

WIRING DIAGRAMS  

0...999s  

Derivative action time.  

1DT  

Overshoot  

.

1SP  

STAND-BY  

Response overshoot may be reduced by inserting  

a derivative Action. A high derivative action (1DT  

high) makes the system very sensitive to small  

temperature variations and causes instability. With  

1DT=0 the derivative control is disabled.  

V

RS485  

TTL  

Button , when pressed for 3 seconds, allows the controller to be put on a standby or output control to be resumed (with SB=YES only).  

rH  

1PB  

KEYPAD LOCK  

data I/O  

3

4

data I/O  

3

4

5

Process  

temperature  

The keypad lock avoids undesired, potentially dangerous operations, which might be attempted when the controllers is operating  

in a public place. In the INFO menu, set parameter LOC=YES to inhibit all functions of the buttons. To resume normal operation  

of keypad, adjust setting so that LOC=NO.  

VIN V- V+  

OUT1  

8(3)A  

OUT2  

8(3)A  

OUT1  

OUT2  

8(3)A  

8(3)A  

Time  

CONTROLLER AUTOTUNING IN PID MODE  

Before starting  

8

9

10  

6

7

0...100%  

Reset of integral action time referred to 1PB  

8

9

10  

6

7

1AR  

1CT  

In the setup mode (see configuration parameters): set 1CM=PID; make sure that 1CH matches the desired operation mode  

(1CH=REF for refrigerating control, 1CH=HEA for heating control); then adjust setpoint 1SP at the desired value.  

Start autotuning  

Decreasing the parameter 1AR reduces the integral control action zone, and consequently the  

overshoot (see figure on paragraph 1IT).  

1...255s  

Cycle time.  

During normal operation, keep buttons  

time in order to define the dynamic of the process to be controlled. To abort the autotuning function, press ; to start autotuning  

press or wait for 30 seconds.  

+

pressed for 3 seconds. 1CT blinks on the display. With  

+

or  

set the cycle  

It’s the period in which the output ON time changes. The quicker the system to be controlled  

reacts to temperature variations, the smaller the cycle time must be, in order to obtain higher  

temperature stability and less sensitivity to load variations.  

+

230V~  

230V~  

AC1-2WTQ2RE-B  

AC1-2WAQ2RE-A  

During autotuning  

During the entire autotuning phase, the display alternates TUN with the actual temperature measured. In case of power failure,  

when power is resumed, after the initial autotest phase, the controller resumes the autotuning function. To abort the autotuning,  

ON/OFF  

Output state in case of probe failure.  

1PF  

OAU  

NON;  

THR;  

AL0;  

AL1  

AUX output operation.  

without modifying the previous control parameters, keep button  

pressed for 3 seconds. After the autotuning has taken place  

NON : output disabled (always off). (the next parameter will be ATM)  

THR : output programmed for second thermostat control (the next parameter will be 2SM).  

AL0 : contacts open when an alarm condition occurs (the next parameter will be ATM).  

AL1 : contacts make when an alarm condition occurs (the next parameter will be ATM).  

successfully, the controller updates the control parameters and start to control.  

Errors  

If the autotuning function failed, the display shows an error code:  

■ E1 timeout1 error: the controller could not bring the temperature within the proportional band. Increase 1SP in case of heating  

control, vice versa, decrease 1SP in case of refrigerating control and re-start the process.  

■ E2 timeout2 error: the autotuning has not ended within the maximum time allowed (1000 cycle times). Re-start the autotuning  

process and set a longer cycle time 1CT.  

■ E3 temperature overrange: check that the error was not caused by a probe malfunction, then decrease 1SP in case of heating  

control, vice versa increase 1SP in case of refrigerating control and then re-start the process.  

ABS;  

REL  

Setpoint 2 mode.  

2SM  

2SP  

Channel 2 setpoint may be absolute (2SM=ABS), or a differential relative to setpoint 1 (2SM=REL)  

SPL...SPH Auxiliary output switchover temperature (the next parameter will be 2CH)  

ON  

ON  

■ To eliminate the error indication and return to the normal mode, press button  

Control improvement  

.

■ To reduce overshoot, reduce the integral action reset 1AR  

OFF  

OFF  

■ To increase the response speed of the system, reduce the proportional band 1PB. Caution: doing this makes the system less stable.  

■ To reduce swings in steady-state temperature, increase the integral action time 1IT; system stability is thus increased, although  

its response speed is decreased.  

■ To increase the speed of response to the variations in temperature, increase the derivative action time 1DT. Caution: a high  

value makes the system sensitive to small variations and it may be a source of instability.  

2SP 2SP+2HY T[°]  

ON/OFF control in refrigeration  

2SP-2HY 2SP  

ON/OFF control in heating  

(2SM=ABS, 2CH=HEA)  

T[°]  

(2SM=ABS, 2CH=REF)  

-19.9...19.9° Temperature differential relative to 1SP. The auxiliary output setpoint is equal to 1SP+2DF  

2DF  

VIA PADOVA, 25  

RECALIBRATION  

ON  

31046 ODERZO /TV /ITALY  

TEL. +39 - 0422 815320  

FAX +39 - 0422 814073  

www.lae-electronic.com  

ON  

■ Have a precision reference thermometer or a calibrator to hand. Ensure that OS1=0 and SIM=0.  

■ Switch the controller off then on again.  

OFF  

OFF  

■ During the auto-test phase, press buttons  

■ With buttons and select 0AD or SAD: 0AD allows a calibration of 0, inserting a constant correction over the whole scale  

of measurement. SAD allows a calibration of the top part of the measurement scale with a proportional correction between the  

+

and keep them pressed till the controller shows 0AD.  

1SP+2DF-2HY  

T[°]  

^1SP+2DF+2HY T[°]  

2DF<0  

1SP+2DF  

2DF>0  

E-mail: sales@lae-electronic.com  

1SP  

1SP+2DF  

1SP  

calibration point and 0.  

ON/OFF control in refrigeration. Setpoint 2  

relative to setpoint 1 (OAU=THR, 2CH=REF)  

ON/OFF control in heating. Setpoint 2  

relative to setpoint 1 (OAU=THR, 2CH=HEA)  

■ Press  

to display the value and then use  

+

or  

to make the read value coincide with the value measured by the  

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General	Details
Name	LAE AC1-2W Digital Thermostat Instruction Manual
Make	LAE
Language	English
Filetype	PDF (Download)
File size	0.43 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• LAE

LAE AC1-2W Digital Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Thank you for having chosen a LAE electronic product. Before installing the instrument, please read these instructions carefully to ensure maximum performance and safety. Refrigerating control (REF) or heating control mode (HEA) for the auxiliary output. To get access to the parameter configuration menu, press button + for 5 seconds. With button or select the parameter to be modified. Channel 1 output and Channel 2 output specifications. Temperature alarm with relative thresholds, refrigerating control (ATM=REL, 1CH=REF). Temperature alarm with relative thresholds, heating control (ATM=REL, 1CH=HEA). Operating conditions: -10 … +50°C; 15%...80% r.H. The keypad lock avoids undesired, potentially dangerous operations. Controller in stand-by and controller in autotuning indications. Errors during autotuning include timeout errors and temperature overrange.
• Page 2: istruzioni d'uso Prima di procedere all’installazione dello strumento, leggete attentamente il presente foglio d’istruzioni: solo così potrete ottenere massime prestazioni e sicurezza. modo di regolazione refrigerazione (REF) o riscaldamento (HEA) per l’uscita ausiliaria differenziale del termostato. Con 2HY=0 l’uscita ausiliaria rimane sempre spenta. per accedere al menù di configurazione dei parametri, premere per 5 secondi i tasti +. dopo uno spegnimento, l’uscita 2 rimane disattivata per 2T0 minuti indipendentemente dal valore della temperatura. uscita canale 1 uscita canale 2 gestione soglie allarme. attenzione: cambiando il valore di SCL vanno assolutamente riconfigurati i parametri riguardanti le temperature assolute e relative. il blocco dei tasti impedisce operazioni indesiderate, potenzialmente dannose, che possono avvenire qualora il regolatore operi in ambiente pubblico.