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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 burnout alarm is added. 

• 

Rating 5A  : 0.0 to 5.0A        Rating 10A: 0.0 to 10.0A 

Rating 20A: 0.0 to20.0A    Rating 50A: 0.0 to 50.0A 

0.0A 

 

Loop break alarm action time setting 

 Sets the action time to assess the Loop break alarm. 

• 

Setting the value to 0 disables the function. 

• 

When alarm and Heater burnout alarm are applied together, 

the output is common. 

• 

Setting range:

 

0 to 200 minutes 

0 minutes 

 

Loop break alarm action span setting 

 Sets the action span to assess the Loop break alarm. 

 Setting the value to 0 disables the function. 

 When alarm and Heater burnout alarm are applied together, 

the output is common. 

• 

Setting range

 

Thermocouple and RTD inputs: 0 to 150   ( ) or 

0.0 to 150.0   ( ) 

DC voltage and current inputs: 0 to 1500 (The placement of the 
decimal point follows the selection) 

0  

 
        (Table 

5.3-1) 

Alarm action type 

  Setting range 

 

High limit alarm 

–(Scaling span) to scaling span 

Low limit alarm 

–(Scaling span) to scaling span 

High/Low limits alarm 

0 to scaling span 

High/Low limit range alarm 

0 to scaling span 

Process high alarm 

Scaling low limit value to scaling high limit value 

Process low alarm 

Scaling low limit value to scaling high limit value 

High limit alarm with standby 

–(Scaling span) to scaling span 

Low limit alarm with standby 

–(Scaling span) to scaling span 

High/Low limits with standby 

0 to scaling span 

Negative low 
limit value is 
–199.9 or 
–1999. 
 
Positive high   
limit value is 
999.9 or 9999. 

 

5.4 Auxiliary function setting mode 1 

Character 

Name, Description, Setting range 

Default value 

Setting value lock selection 
• 

Locks the setting value to prevent setting errors. 
The setting item to be locked depends on the designation. 

• 

When Lock 1 or Lock 2 is designated, PID auto-tuning cannot 

be carried out.   

• 

  (Unlock): All setting values can be changed. 

   

  (Lock 1): None of setting values can be changed. 

   

  (Lock 2): Only main setting mode can be changed. 

Unlock 

 

   

  (Lock 3): All setting values can be changed except 

Controller/Converter 

function selection. However they return to their former value   
after power is turned off because they are not saved in the 
non-volatile memory.   

 

Summary of Contents for KT7

Page 1: ...ed according to the specifications described in this manual If it is not used according to the specifications it may malfunction or cause fire Be sure to follow the warnings cautions and notice If not...

Page 2: ...rease key Decreases the numeric value 8 Mode key Selects the setting mode or registers the setting value By pressing the Mode key the setting value can be registered 9 Sub mode key Brings up Auxiliary...

Page 3: ...contact with the controller...

Page 4: ...n DIN rail is mounted vertically be sure to use commercially available fastening plates at the end of KT7 series Mount the KT7 series to the DIN rail so that the KT7 series cannot move However if the...

Page 5: ...nal screw with the specified torque If not it may damage the terminal screw and deform the case Use thermocouple and compensating lead wire that fit sensor input specification of this unit Use the 3 w...

Page 6: ...ned on the sensor input characters and temperature unit are indicated on the PV display and the input range high limit value is indicated on the SV display for approx 3 seconds Table 5 1 If any other...

Page 7: ...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...

Page 8: ...e time setting Decimal point place selection ARW setting PV filter time constant setting OUT proportional cycle setting OUT high limit setting Manual reset setting OUT low limit setting Alarm setting...

Page 9: ...d Approx 3s Press the for 3 seconds while the key is being pressed Approx 3s Press the for 3 seconds while the key is being pressed When setting a value or selecting an item in the setting modes use t...

Page 10: ...tting the value to 0 disables the function This setting item is not indicated for ON OFF action Setting range 0 to 300 seconds 50 seconds Anti reset windup setting Sets anti reset windup Available onl...

Page 11: ...larm action type Setting range High limit alarm Scaling span to scaling span Low limit alarm Scaling span to scaling span High Low limits alarm 0 to scaling span High Low limit range alarm 0 to scalin...

Page 12: ...to 20mA 1999 to 9999 0 to 20mA 1999 to 9999 0 to 1V 1999 to 9999 0 to 5V 1999 to 9999 1 to 5V 1999 to 9999 0 to 10V 1999 to 9999 Scaling high limit setting Sets the scaling high limit value Setting ra...

Page 13: ...Not available if No alarm action is selected in the Alarm action selection Energized Deenergized Energized Alarm HOLD function selection Selects whether alarm HOLD function is Used or Not used If ala...

Page 14: ...ue In such a case the control can be set at the desired temperature by adjusting the input value of sensors Loop break alarm The alarm will be activated when the process variable PV does not rise to t...

Page 15: ......

Page 16: ...sensor type from Input type selection 5 Set the high limit of the value that is going to be converted during Scaling high limit setting 6 Set the low limit of the value that is going to be converted d...

Page 17: ...DC Cycle action is performed according to deviation Cycle action is performed according to deviation Cycle action is performed according to deviation Changes continuously according to deviation Unlit...

Page 18: ...g side side side side SV setting A1 setting point A1 setting point A1 setting point SV setting A1 setting point SV setting A1 setting point A1 setting point A1 setting point SV setting A1 setting poin...

Page 19: ...tant PID contatnt calculated Controlled by the PID constant set by auto tuning AT bias value 1 2 3 4 2 When the control is stable Fluctuation is applied at the setting value Temp Time AT 1 2 3 AT Auto...

Page 20: ...Within 6 12 B input 0 to 300 0 to 600 Accuracy is not guaranteed K J E N input less than 0 32 Within 0 4 of input span 1 digit RTD Within 0 1 of input span 1 digit or within 1 2 whichever is greater D...

Page 21: ...ical 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...

Page 22: ...ed Deenergized can be selected Energized Deenergized Red EVT LED Lights Lights EVT output ON OFF Alarm HOLD function selection Once the alarm is activated alarm output is held until the power is turne...

Page 23: ...OFF for DC current output type OUT low limit value However for manual control it outputs the preset manipulated variable Input Input range Indication range Control range 199 9 to 400 0 199 9 to 450 0...

Page 24: ...s the burnout When this option is added this option shares common output with Alarm output and Loop break alarm This option cannot be applied to DC current output type Rating 5A 10A 20A 50A Must be sp...

Page 25: ...ured object is indicated on the PV display Internal memory is defective Contact our agency or us 11 2 Key operation Problem Presumed cause and solution Setting values do not change even if the or key...

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...

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