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  5. Instruction Manual

NAiS KT7 Instruction Manual

Manual is about: Temperature Controller

Summary of KT7

  • Page 1

    Instruction manual temperature controller kt7 to prevent accidents arising from the misuse of this controller, please ensure the operator using it receives this manual. Safety precautions be sure to read these precautions before using our products. The safety precautions are classified into categori...

  • Page 2: Notice

    1.2 how to indicate the rated label the rated label is put on the case. When heater burnout alarm is added, ct rated current is written in the bracket. A k t 7 1 1 1 1 0 0 no. Relay contact output alarm output (1 point) heater burnout alarm is not added (1) (2) (e.G.) supply voltage: 100 to 240v ac ...

  • Page 3

    Contact with the controller.

  • Page 4: Caution

    3.2 external dimension 75 22.5 97 100 (fig. 3.2-1) 3.3 ct (current transformer) external dimension akt4815 (for 20a) akt4816 (for 50a) (fig. 3.3-1) 3.4 mounting to din rail caution mount the din rail horizontally. When din rail is mounted vertically, be sure to use commercially available fastening p...

  • Page 5: Warning

    (1) hook (1) of kt7 series on the upper side of the din rail. (fig. 3.4-1) (2) making the (1) part of the kt7 series as a support, fit the lower part of the kt7 series to the din rail. Kt7 series will be completely fixed to din rail with a “click” sound. (fig. 3.4-1) (1) (2) (fig. 3.4-1) 4. Wiring c...

  • Page 6

    Terminal arrangement • out : control output • relay: relay contact output • v/a : dc voltage output/ dc current output • evt : event output (activates when alarm, loop break alarm or heater burnout alarm [option] is on) • tc : thermocouple • rtd : resistance temperature detector • dc : dc current or...

  • Page 7

    –200 to 850 –300 to 1500 1 ( ) –199.9 to 500.0 –199.9 to 900.0 0.1 ( ) jpt100 –200 to 500 –300 to 900 1 ( ) 4 to 20ma dc –1999 to 9999 *1,*2 1 0 to 20ma dc –1999 to 9999 *1,*2 1 0 to 1v dc –1999 to 9999 *1 1 0 to 5v dc –1999 to 9999 *1 1 1 to 5v dc –1999 to 9999 *1 1 0 to 10v dc –1999 to 9999 *1 1.

  • Page 8

    5.1 setup flow chart pv/sv display mode (approx. 3s) output manipulated variable indication (approx. 3s) (approx. 3s) [sub setting mode] [auxiliary function [auxiliary function setting mode 1] setting mode 2] sv [ ] at setting [ ] setting value lock selection [ ] input type selection [ ] out proport...

  • Page 9

    Output status selection when input burnout [ ] at bias setting [ ] û : press the while the key is being pressed. û (approx. 3s): press the for 3 seconds while the key is being pressed. û (approx. 3s): press the for 3 seconds while the key is being pressed. ûwhen setting a value or selecting an item ...

  • Page 10

    5.2 main setting mode character name, description, setting range default value sv • sets the value for controlled object. • setting range: scaling low limit value to scaling high limit value (for dc voltage and current inputs, the placement of the decimal point follows the selection) 0 5.3 sub setti...

  • Page 11

    Heater burnout alarm setting • sets the heater current value for heater burnout alarm. • setting the value to 0.0 disables the function. • self-holding is not available for the alarm output. When alarm and loop break alarm are applied together, the output is common. • available only when heater burn...

  • Page 12

    Sensor correction setting • sets the sensor correction value for the sensor. • thermocouple and rtd inputs: –100.0 to 100.0 ( ) dc voltage and current inputs: –1000 to 1000 (the placement of the decimal point follows the selection) 0.0 5.5 auxiliary function setting mode 2 character name, descriptio...

  • Page 13

    Out low limit setting • sets the control output low limit value. • not available for on/off action. • setting range:–5% to out high limit value (setting less than 0% is effective to dc current output type) 0% out on/off action hysteresis setting • sets the on/off action hysteresis for the control ou...

  • Page 14

    At bias setting • set bias value during pid auto-tuning. • not available if dc voltage or current input is selected in the input type selection and when action is not pid, either. • setting range:0 to 50 (0 to 100 ) or 0.0 to 50.0 (0.0 to 100.0 ) 20 controller/ converter function selection • selects...

  • Page 16: Caution

    5.6 output manipulated variable indication name and description output manipulated variable indication • in the pv/sv display mode, press the key for approx. 3 seconds. Keep pressing the key until the output manipulated variable shows up, though the main setting mode appears temporarily during the p...

  • Page 17

    8. Action explanation 8.1 out action part : acts on or off. Heating (reverse) action cooling (direct) action control action cycle action is performed according to deviation relay contact output non-contact voltage output changes continuously according to deviation dc current output indication (out) ...

  • Page 18

    8.3 evt (alarm) action high limit alarm alarm action alarm output + side side high/low limits alarm high/low limit range alarm low limit alarm process high alarm process low alarm high limit alarm with standby high/low limit alarm with standby low limit alarm with standby off on a1 hysteresis off on...

  • Page 19

    9. Pid auto-tuning of this controller in order to set each p, i, d values and arw automatically, this system gives a fluctuation to the controlled object to get an optimal value. One of 3 types of fluctuation below is automatically selected. (1) when the difference between the setting value and proc...

  • Page 20

    10. Specifications 10.1 standard specification model name : temperature controller mounting metho : din rail mounting method d d setting metho : input system using membrane sheet key display pv display : red led 4 digits, character size 7.4 x 4mm (h x w) sv display : green led 4 digits, character si...

  • Page 21

    Electrical life, 100,000 times • non-contact voltage (for ssr drive): 12 , v dc max. 40ma (short circuit protected) • dc current: 4 to 20ma dc, load resistance: max. 550 output accuracy: within 0.3% of output span resolution : 12000

  • Page 22

    Evt output • alarm output [common output with loop break alarm and heater burnout alarm (option)] the alarm action point is set by deviation to the main setting (excluding process alarm) and when input exceeds the range in deviation setting (excluding process alarm) to the main setting, alarm (evt) ...

  • Page 23

    Material : flame resistant resin (case) re] sis] ut) color : ash gray (case) attached function [setting value lock] [sensor correction] [power failure countermeasu the setting data is backed up in non-volatile ic memory. [self diagno the cpu is monitored by a watchdog timer, and when any abnormal st...

  • Page 24

    –300 to 900 –312 to 1000 –312 to 1000 dc current and voltage inputs if the pv exceeds indication range high limit value, the pv display blinks “ ”, and if the pv exceeds the indication range low limit value, the pv display blinks “ ”. Indication ran : [scaling low limit value – scaling span x 1%] to...

  • Page 25

    Of this instrument? Connect the input signal wire securely to the terminal of the instrument. The indication on the pv display is abnormal or unstable. • is designation of the sensor (input) correct? Set the correct sensor (input). • is thepolarity of the sensor input correct? Wire it correctly. • t...

  • Page 26

    Matsushita electric works, ltd. Tatsuno matsushita electric works, ltd. Mail address : 300 katayama, tatsuno-cho, tatsuno-city, hyogo-pref, japan telephone : +81-791-63-0511 no.Kt71e1 2002.03.