LAE electronic AC1-2W Bedienungsanleitung

AC1-2W INSTRUCTION FOR USE
Thank you for having chosen a LAE electronic product. Before installing the instrument, please read these instructions carefully
to ensure maximum performance and safety.
INDICATION
DESCRIPTION
Channel 1 output
OUT1
Channel 2 output
OUT2
L1 Channel 1 setpoint modification
Channel 2 setpoint modification
L2
Alarm
Info / Enter button Modify Setpoint 1 / Decrease button
Increase / Modify Setpoint 2 button
Fig.1 - Front panel
INSTALLATION
■ 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.
■ Place the probe T1 inside the room in a point that truly represents the temperature of the stored product.
OPERATION
DISPLAY
During normal operation, the display shows either the temperature measured or one of the following indications:
Controller in stand-by Controller in autotuning
Probe T1 overrange or failure In tuning: timeout1 error
Room high temperature alarm In tuning: timeout2 error
Room low temperature alarm In tuning: overrange error
MENU INFO
The information available in this menu is:
Maximum temperature recorded Keypad state lock
Minimum temperature recorded
Access to menu and information displayed.
■ Press and immediately release button .
■ With button or select the data to be displayed.
■ Press button to display value.
■ To exit from the menu, press button or wait for 10 seconds.
Reset of THI, TLO recordings
■ With button or select the data to be reset.
■ 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.
■ To go back to normal mode without saving the new value, press .
CHANNEL 2 SETPOINT
■ With the auxiliary output set as thermostat control ( OAU=THR), it's possible to modify setpoint 2 during the normal operation
of the controller.
■ Press and release button : 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
associated to the parameter appears.
■ Press buttons or to set the desired value.
■ To store the new value press button or wait for 10 seconds.
■ To go back to normal mode without saving the new value, press .
STAND-BY
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).
KEYPAD LOCK
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.
CONTROLLER AUTOTUNING IN PID MODE
Before starting
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
During normal operation, keep buttons + pressed for 3 seconds. 1CT blinks on the display. With
time in order to define the dynamic of the process to be controlled. To abort the autotuning function, press
press + or wait for 30 seconds.
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,
without modifying the previous control parameters, keep button pressed for 3 seconds. After the autotuning has taken place
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
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
control, vice versa increase 1SP in case of refrigerating control and then re-start the process.
■ To eliminate the error indication and return to the normal mode, press button .
Control improvement
■ To reduce overshoot, reduce the integral action reset 1AR
■ 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
value makes the system sensitive to small variations and it may be a source of instability.
RECALIBRATION
■ Have a precision reference thermometer or a calibrator to hand. Ensure that OS1=0 and SIM=0.
■ Switch the controller off then on again.
■ During the auto-test phase, press buttons + and keep them pressed till the controller shows 0AD.
■ 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
calibration point and 0.
■ Press to display the value and then use + or to make the read value coincide with the value measured by the
reference instrument.
■ Exit from calibration by pressing button .
CONFIGURATION PARAMETERS
■ To get access to the parameter configuration menu, press button
■ With button or select the parameter to be modified.
■ Press button to display the value.
■ By keeping button pressed, use button or to set the desired value.
■ When button 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.
PAR RANGE DESCRIPTION
SCL 1°C; Readout scale (see table of input specifications)
2°C; Caution: upon changing the SCL value, it is then absolutely necessary to reconfigure the param-
°F eters relevant to the absolute and relative temperatures (SPL, SPH, 1SP, 1HY etc..)
SPL -50°...SPH Minimum limit for 1SP setting
Exit / Stand-by button
SPH SPL...150° Maximum limit for 1SP setting.
1SP SPL... SPH Setpoint (value to be maintained in the room).
1CM HY; PID Control mode.
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.
1CH REF; HEA Refrigerating (REF) or Heating (HEA) control mode.
1HY
0...19.9° OFF/ON thermostat differential. With 1HY=0 the output is always off.
ON
OFF
1SP 1SP+1HY
ON/OFF refrigerating control
(1CM=HY, 1CH=REF)
1T0 0...30min Minimum off time.
After output 1 has been turned off, it remains inactive for 1T0 minutes regardless of the
temperature value measured.
1T1 0...30min 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.
1PB 0...19.9° Proportional bandwidth.
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. A purely
proportional control stabilises the temperature
within the proportional band but does not cancel
the deviation from setpoint.
With 1PB=0 the output is always off.
1IT 0...999s Integral action time.
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.
1DT 0...999s Derivative action time.
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.
1AR
0...100% Reset of integral action time referred to 1PB
Decreasing the parameter 1AR reduces the integral control action zone, and consequently the
overshoot (see figure on paragraph 1IT).
1CT 1...255s Cycle time.
+ or set the cycle
It's the period in which the output ON time changes. The quicker the system to be controlled
; to start autotuning
reacts to temperature variations, the smaller the cycle time must be, in order to obtain higher
temperature stability and less sensitivity to load variations.
1PF ON/OFF Output state in case of probe failure.
OAU NON; AUX output operation.
THR; NON : output disabled (always off). (the next parameter will be ATM)
AL0; THR : output programmed for second thermostat control (the next parameter will be 2SM).
AL1 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).
1SP in case of heating
2SM ABS; Setpoint 2 mode.
REL Channel 2 setpoint may be absolute (2SM=ABS), or a differential relative to setpoint 1 (2SM=REL)
2SP SPL...SPH Auxiliary output switchover temperature (the next parameter will be 2CH)
1SP in case of heating
ON
OFF
2SP 2SP+2HY T[°]
ON/OFF control in refrigeration
(2SM=ABS, 2CH=REF)
1DT. Caution: a high
2DF -19.9...19.9° Temperature differential relative to 1SP. The auxiliary output setpoint is equal to 1SP+2DF
ON
OFF
1SP+2DF+2HY
2DF>0
1SP
1SP+2DF
ON/OFF control in refrigeration. Setpoint 2
relative to setpoint 1 (OAU=THR, 2CH=REF)
2CH REF; HEA
2HY 0...19.9°
2T0 0...30min
+ for 5 seconds.
2T1 0...30min
2PF ON/OFF
ATM NON;
ABS;
REL
ALA -50°...AHA
AHA ALA...150°
ALR -12.0...0°
ON
AHR 0...12.0°
OFF
T[°] T[°]
1SP-1HY 1SP
ATD
0...120min
ON/OFF heating control
SB
(1CM=HY, 1CH=HEA) NO/YES
INP
ST1/SN4
RLO -19.9...RHI
RHI RLO...99.9
Overshoot
OS1
Steady-state error -12.5...12.5° Probe T1 offset.
1SP
TLD 1...30min
SIM 0...100
1PB
Process ADR 1...255
temperature
INPUT SPECIFICATIONS
Time
Overshoot MODEL INPUT
1SP AC1-2WA.. 0÷1V
INP=ST1
1PBx1AR% 1PB
AC1-2WT...
integral control
Process
action area
temperature INP=SN4
Time
WIRING DIAGRAMS
Overshoot
1SP
RS485
1PB
data I/O
Process
temperature
OUT1 OUT2
8(3)A 8(3)A
Time
8 9
230V~
ON
OFF
2SP-2HY 2SP T[°]
ON/OFF control in heating
(2SM=ABS, 2CH=HEA)
ON
OFF
T[°] T[°]
1SP+2DF-2HY
2DF<0
1SP+2DF
1SP
ON/OFF control in heating. Setpoint 2
relative to setpoint 1 (OAU=THR, 2CH=HEA)
Refrigerating control (REF) or heating control mode (HEA) for the auxiliary output.
Differential of thermostat 2. With 2HY=0 the auxiliary output always remains off.
Minimum off time.
After output 2 has been turned off, it remains inactive for 2T0 minutes regardless of the temperature
value measured.
Minimum on time.
After output 2 has been turned on, it remains active for 2T1 minutes regardless of the temperature
value measured.
Auxiliary output state in case of probe failure.
Alarm threshold management.
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.
ON ON
T[°]
OFF
OFF
1SP-ALR 1SP 1SP+1HY+AHR
1SP-1HY-ALR 1SP 1SP+AHR
Temperature alarm with relative thresholds, Temperature alarm with relative thresholds,
refrigerating control (ATM=REL, 1CH=REF)
heating control (ATM=REL, 1CH=HEA).
Low temperature alarm threshold.
High temperature alarm threshold.
Low temperature alarm differential.
With ALR=0 the low temperature alarm is excluded.
High temperature alarm differential.
With AHR=0 the high temperature alarm is excluded.
Delay before alarm temperature warning.
Stand-by button enabling.
Sensor input selection (see table of input specifications).
In the models AC1-2WT... only.
Minimum range value (in the models AC1-2WA... only)
RLO takes the minimum value measured by the transmitter (i.e. the value matching 0V).
Maximum range value (in the models AC1-2WA... only)
RHI takes the maximum value measured by the transmitter (i.e. the value matching 1V)
Delay for minimum temperature (TLO) and maximum temperature (THI) logging.
Display slowdown
AC1-2W address for PC communication
RANGE [MEASUREMENT ACCURACY]
SCL=1°C SCL=2°C SCL=°F
RLO÷RHI [< ± 3mV] ---
PTC 1000 Ω -50/-19.9 ÷ 99.9/150°C -50 ÷ 150°C -60 ÷ 300°F
(LAE ST1..) [<±0.3°C(-30÷130°),±1°C] [<±0.3°C(-30÷130°), ±1°C] [< ±0.6°F(-20÷260°),±2°F]
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]
TTL V
3 4 data I/O 3 4 5
V V- V+
IN
OUT1 OUT2
8(3)A 8(3)A
10 6 7
8 9 10 6 7
230V~
AC1-2WTQ2RE-B AC1-2WAQ2RE-A
TECHNICAL DATA
Power supply
AC1-2W...D 12Vac/dc ±10%, 2W
AC1-2W...E 230Vac±10%, 50/60Hz, 2W
AC1-2W...U 115Vac±10%, 50/60Hz, 2W
Relay outputs (AC1-2W..R..)
OUT1 8(3)A
OUT2 8(3)A
SSR drive (AC1-2W..F..)
OUT1 15mA 12Vdc
OUT2 15mA 12Vdc
Inputs
see table of input specifications
T[°]
Measurement range
see table of input specifications
Measurement accuracy
see table of input specifications
Operating conditions
-10 ... +50°C; 15%...80% r.H.
CE (Reference Norms)
EN60730-1; EN60730-2-9;
EN55022 (Class B); EN50082-1
Front protection
IP55
rH
VIA PADOVA, 25
31046 ODERZO /TV /ITALY
TEL. +39 - 0422 815320
FAX +39 - 0422 814073
www.lae-electronic.com
E-mail: sales@lae-electronic.com