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LAC Ht40B User Manual

Manual is about: temperature / process controller

Summary of Ht40B

  • Page 1

    1 ht40b, 01/03, soft 4.11/rev. 1 english version ht40b pid controller users manual lac, spol. S r.O. Štefánikova 116 664 61 rajhrad e-mail: info@lac.Cz www.Lac.Cz.

  • Page 2

    2 1 important ht40b is a temperature / process controller intended for the built-in to panel. The format of controller is 96 x 48 mm (1/8 din). The scope of the controller: • controlling of stp value, • controlling master – slave (1 controller is supervisory master, the others are slaves – receive s...

  • Page 3

    3 2 basic terms to avoid problems in operation of device the user should be able to manage its operation, setting parameters, ... 2.1 operation and description of controller on the front panel board you can see 2 displays, 3 control lights (led diodes) for indicating a status of outputs. The device ...

  • Page 4

    4 error messages, lower display if there is a error message indicated then the control outputs are switched off, the signal output is switched off, the alarm output is activated. • err0 … error in flash memory of program. Switch the controller off and on again. If the problem persists, contact your ...

  • Page 5

    5 3 basic mode the controller is in basic mode when powered up (the initial set-up must be performed, see page 27 ). On upper display process value is shown, on lower display there can be stp value or heading off (at master / slave controlling, if the controller does not receive stp value). • when c...

  • Page 6

    6 4 user level user level is intended for the quick access to the most common parameters for a user. To enter user level and to go through this level press the key . To return from user level you must go trough all the parameters or by pressing shortly the keys . You can configure freely the structu...

  • Page 7

    7 allo low limit of alarm . Alarm is activated when process value is lower than the set alarm limit. Range: • -499 to alhi °c for ot3 = alpr . • -999 to 0 °c for ot3 = alde . Alhi high limit of alarm . Alarm is activated when process value is higher than the set alarm limit. Range: • allo to 2499 °c...

  • Page 8

    8 4.2 automatic / manual operation of controller automatic operation of controlling requires the closed control loop. The user adjusts stp value and the controller regulates the output power that is supplied to system. At manual operation the user adjusts the required output power. Manual operation ...

  • Page 9

    9 on/off controlling of cooling is set with the parameter ot2 = cl2 . Parameter ot2 is found in configuration level , menu out2 . Stp value for cooling is put down by the value set with parameter sp2 , that is found in configuration level , menu out2 . In operation level you set hysteresis of on/off...

  • Page 10

    10 5 operation level in operation level you can set parameters which are available to a user. From basic mode to operation level you will get by pressing the keys for 3 seconds. On lower display it appears levl , on upper display set oper and confirm with the key . If pass appears on lower display t...

  • Page 11

    11 out1 , menu for parameters of the output 1 menu is intended for manual setting of pid parameters or for fine tunning of parameters when the controlling is not enough precise. To enter this menu set yes on upper display and confirm. Display meaning pb1a proportional band of the output 1 , the firs...

  • Page 12

    12 6 configuration level configuration level is intended for the basic setting of the controller. In this level the control output is turned off and alarm and signal outputs are deactivated. To enter configuration level from basic mode press both the keys for 3 seconds. On lower display it appears l...

  • Page 13

    13 inp1 , input setting display meaning sen1 setting of input sensor – thermal input. • no … input is not set. • j … thermocouple j, range -200 to 900°c. • k … thermocouple k, range -200 to 1360°c. • t … thermocouple t, range -200 to 400°c. • n … thermocouple n, range -200 to 1300°c. • e … thermocou...

  • Page 14

    14 s pl setting of limit between low and high values of power limit function. Range: -499 to 2499 °c. Plhi power limit function for the limiting of output power at high measured values, in %. Range: 0 to 100 %. Out2 , output 2 display meaning ot2 function of the output 2: • off … output 2 is turned ...

  • Page 15

    15 user , setting of user menu display meaning stp1 parameter that is placed on the 1st position of user menu: • no … no parameter • pcn1 … indicates power in % of the control output 1. • pcn2 … indicates power in % of the control output 2. • aoff … function for switching alarm off. • aut … starting...

  • Page 16

    16 6.1 measurement the right selection, the installation, the wiring, the location of sensor in the equipment and the corresponding setting of parameters of the controller has the essential importance for the correct function. Parameters for the configuration of the measurement input are in configur...

  • Page 17

    17 pid controlling pid control is selected by setting ot1 = ht . It provides the precise control. For the correct function of the controller, however, it is necessary to set properly pid parameters. Autotunning for setting of pid parameters is described on page 9. Pid parameters have the following m...

  • Page 18

    18 6.3 alarm the third output (output 3) is alarm. The configuration parameters of the output you will find in configuration level , menu out3 , setting of the alarm limits allo and alhi you will find in operation level or user level . Setting of alarm output set this function with parameter out3 : ...

  • Page 19

    19 silencing of alarm active sides of alarm with parameter sid3 you can choose the active side of alarm: • sid3 = both , both sides (limits) are active. • sid3 = hi , only high alarm side (limit) is active. • sid3 = lo , only low alarm side (limit) is active. 6.4 system master – slave if the control...

  • Page 20

    20 setting of the controller – master • in configuration level , menu comm , set parameter comm = sgnl . • in operation level , parameter is set l-r = l . Setting of the controller - slave • in configuration level , menu comm , set parameter comm = mod , setting of the parameters addr can remain unc...

  • Page 21

    21 7 service level service level is intended for service workers. In this level the control output is switched off and alarm and signal output is deactivated . To get from basic mode to service level press the keys for about 3 seconds. On lower display levl appears, on upper one set serv and confirm...

  • Page 22

    22 8 table of parameters table of parameters for configuration level: table of parameters for operation level: sen1 dec1 cal1 rl 1 rh 1 comm baud addr ot1 ct1 algo spid pllo s pl plhi ot2 fkey sp1l sp1h ramp rti p op p co p se ftr1 sp2 ct2 sid2 ot3 lat3 sil3 sid3 hys3 rerr dert stp1 stp2 stp3 stp4 s...

  • Page 23

    23 9 installation the controller is designed to be mounted to the panel cutout. Slide the controller into the cutout and fix it with 2 flanges that are supplied with the controller. The installation requires the access to the back of the panel. Mounting dimmensions • width x height x overall length:...

  • Page 24

    24 10 wiring to avoid potential electric shock, use safety practices laid down by national standards when wiring and connecting this unit to a power source. Failure to do so could result in such damage, and / or injury. The wiring must be done only by the authorized person. If there is any default o...

  • Page 25

    25 communication line (comm) control output 1 (out1) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ssd dc voltage + - ssd is not isolated from controllers ground max. 30ma voltage open state: 12-18vdc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 relay relay output 230vac/5a or 30vdc/5a relay output is galvanicly isola...

  • Page 26

    26 auxiliary output 2 (out2) alarm output 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ssd dc voltage + - ssd is not isolated from controllers ground max. 30ma voltage,open state: 12-18vdc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 relay relay output relay output is galvanicly isolated from the ground of the contro...

  • Page 27

    27 11 putting into operation the initial set-up can be done only by the qualified and authorized person. The wrong set-up can cause serious damage. When you power the controller up for the first time, you must enter the most necessary data to the controller for its problem- free operation: • type of...

  • Page 28

    28 12 technical parameters the controller is intended for use in industrial or laboratory equipment, the category of pollution / over voltage ii. Controlling • pid, pi, pd, p controlling, autotunning/automatic setting of pid parameters, controlling of heating or cooling. • on/off controlling, contro...

  • Page 29

    29 accuracy of inputs • ±0,1% of span/range (min. 540ºc) , ±1 digit at 25ºc ±3ºc of ambient temperature and at ±10% rated supply voltage • temperature stability ±0,1ºc/ºc in ambient • voltage stability ±0,01%/% of change in supply voltage supply voltage • 100 to 240 vac 50 hz, internal slow fuse 2 a...

  • Page 30

    30 13 index 1 important ........................................................................................................................................................................................... 2 2 basic terms............................................................................