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Summary of Contents for APAR AR247 series
- Page 1 APAR - BIURO HANDLOWE 05-090 Raszyn, ul Gałczyńskiego 6 Tel. (22) 853-48-56, 853-49-30, 101-27-31 E-mail: automatyka@apar.pl Internet: www.apar.pl OPERATING INSTRUCTIONS AR247 HUMIDITY AND TEMPERATURE CONTROLLER Version 3.0.1 2016.12.01...
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Page 2: Table Of Contents
Thank you for choosing our product. This manual will help you use your controller correctly, safely and to its full potential. Read this manual carefully before installing and putting your controller to use. In case of additional questions, please contact the technical advisor. CONTENTS 1. -
Page 3: Safety Principles
1. SAFETY PRINCIPLES before you start to use the device, become familiar with the present instructions; in order to avoid electrocution or damage to the device, its mechanical and electrical installation must be performed by qualified staff; before switching on the power supply, make sure that all cables and wires are properly connected;... -
Page 4: Contents Of The Set
manual mode (open control loop) available for binary outputs and the analog output, which makes it possible to set the value of the output signal in the range of 0-100%; possibility of self-activation in the event of sensor failure; ... -
Page 5: Dimensions Of The Device And Installation Data
Readout measurement resolution programmable: 0.1 or 1 %RH, °C , g/m Communication - RS485 (galvanically - baud rates 2.4-57.6 kb/s, separated), option - character format 8N1 (8 data bits, 1 stop bit, no interfaces parity bits) (RS485 and PRG, do - PRG programming - MODBUS-RTU protocol (SLAVE) not use... -
Page 6: Description Of Terminal Strips And Electrical Connections
b) dimensions for external probes in different designs b.1) AR247/2 b.2) AR247/3 (probe AR283) b.3) AR247/L150 and L250 (probe AR282) (probe AR284/L150 or L250) c) installation of cabling - isolate the power supply before making any changes to the cabling - remove the 4 screws in the front board and take it off the device - loosen 1 screw in the display board and slide it out carefully from the bolt terminals;... -
Page 7: Important Comments Pertaining To Operation - Using The Suppression Systems
a) the numbers of the terminals and the method of connecting electrical wires - description of terminals Table 7 NOTE: For connecting the device with a computer through the PRG socket, use only the AR956 or AR955 programmer. Connection made with a regular USB cable may cause damage to the equipment. 8. -
Page 8: Function Button And Binary Input
[SET] : - go to the quick access menu (chapter 11) [UP] and [DOWN] (at the same time): go to the parameter configuration menu (after hold time longer than 1 s). If parameter 45: Prt = on (password protection is activated) enter the access code (chapter 10) [F]: activation of a function programmed with parameter 46: FbF (after holding for more than 1 second, chapters 9.1 and 10) -
Page 9: Setting Of The Configuration Parameters
FbF = hd2 unconditional manual mode for the P2/SSR2 output hAn / hoF FbF = hd3 unconditional manual mode for the P3/SSR3 output hAn / hoF FbF = hdA unconditional manual mode for the analog output hAn / hoF FbF = StS control start/stop (applies to all outputs) Sta / Sto FbF = rHt... - Page 10 In the event of indications different than the actual value of the relative humidity or the temperature of the sensor, the zero and the sensitivity of a sensor can be tuned: parameters 3: coH and 8: cot, as well as 4: cGH and 9: cGt . To restore the factory settings, when the power supply is switched on press buttons [UP] and [DOWN] and hold them until the password menu appears (Cod), and then enter the following code 112.
- Page 11 13: St1 preset value 1 set value for output 1, changes in the range of 15: Lo1 - 16: Hi1 50.0 %RH hysteresis for control of the ON-OFF type or insensitivity zone 14: H1 hysteresis of output 0.0 ÷ 99.9 1.0 %RH of PID tuning in the auto mode ( Aut ), chapter 12.5 1 or PID tuning zone...
- Page 12 0 - switches off the PID's action, a description of the PID 37: Pb range of PID 0 ÷ 200 0.0 %RH algorithm and associated topics can be found in chapters proportionality 12.4 ÷ 12.6 PID algorithm doubling time 38: ti PID integration time 0 ÷...
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Page 13: Quick Access Menu
11. QUICK ACCESS MENU In the measurement mode (when the measured or the calculated values is displayed), it is possible to immediately access certain configuration parameters and functions without the need to enter a password. This possibility is offered by the quick menu, which can be accessed by pressing the [SET] button. The parameter is selected and edited in the same way as described above (in chapter 10). -
Page 14: Analog Output
b) additional operating characteristics of outputs (applies only to outputs 2 and 3) 12.3. ANALOG OUTPUT The standard of the output signal is determined by parameter 32: AtY (chapter 10, Table 10). The analog output can work in one of the following modes: retransmission of measurement (parameter 33: FnA = rEt ), in the manual mode (33: FnA = hnd ) and as an automatic control output (33: FnA = ot1 ). -
Page 15: Pid Regulation
12.4. PID REGULATION The PID algorithm enables achieving smaller control errors (temperature or humidity) than the ON-OFF method with hysteresis. However, the algorithm requires selecting the characteristic parameters for the specific controlled object (e.g. a furnace). In order to simplify the operation, the controller is provided with the advanced PID parameter selection functions described in chapter 12.5. - Page 16 starting the tuning and tests the object in order to select the proper method. The algorithm continuously forces operation in the PID mode. The necessary condition for initiating the PID parameter selection procedure is that the current measured value must be located outside of the insensitivity zone defined as the sum of the values of parameter 37: Pb and 14: H1 in relation to the preset value 13: St1 , as shown in figure 12.5.
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Page 17: Pid Parameter Correction
12.6. PID PARAMETER CORRECTION The automatic tuning function correctly selects the PID regulation parameters for most processes; however, sometimes it may be necessary to correct them. Due to the strong correlation between those parameters, only one parameter should be changed and the impact of the change on the process should be observed: a) oscillations around the threshold - increase the range of proportionality 37: Pb , increase the integration time 38: ti , reduce the differentiation time 39: td , (or change by a half the impulse period of output 1, parameter 41: tc ) -
Page 18: Connecting The Controller To A Computer And Available Software
MODBUS-RTU (chapter 16). The following applications are available (on a CD supplied with the AR956/955 programmer or to be downloaded from the Internet at www.apar.pl, Download section, for operating systems Windows Vista/7/8/10): Name... -
Page 19: Modbus-Rtu Serial Transmission Protocol (Slave)
- at both ends of the line - 150 Ω each between lines Equipment from different manufacturers that form the RS485 network (e.g. RS485 converters/USB) may have integrated polarizing and terminating resistors; in such a case there is no need to use external elements. Fig. - Page 20 Example 16.5. Error frame for a non-existing read register address: 0x01 - 0x84 - 0x02 - 0x0001 –0x5130 Table 16.6. Map of registers for the MODBUS-RTU protocol Register Value Description of register and access type address (HEX or DEC) (R- read only register, R/W - read and write register) HEX (DEC) 0x00 (0) not used or reserved...
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Page 21: Notes
parameter 39: td PID differentiation time constant 0x37 (55) 0 ÷ 999 parameter 40: PoC correction of the output signal for the PID control algorithm 0x38 (56) 0 ÷ 100 parameter 41: tc impulse period 0x39 (57) 3 ÷ 360 parameter 42: HSt preset value of the manual mode 0x3A (58) 0 ÷... - Page 22 CERTIFICATE OF CALIBRATION OF DIGITAL HUMIDITY AND TEMPERATURE SENSORS MADE BY SENSIRION...
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