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Panasonic KT7, Инструкция по эксплуатации

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16

Input

Thermocouple

: K, J, R, S, B, E, T, N, PL- , C (W/Re5-26)

External resistance; 100

or less

However, for thermocouple B, external resistance, 40

or less

RTD

: Pt100, JPt100, 3-wire system

Allowable input lead wire resistance (10

or less per wire)

DC current

: 0 to 20mA DC, 4 to 20mA DC, input impedance 50

[Connect 50

shunt resistor (AKT4811, sold separately) between input

terminals 5 and 6]
Allowable input current: 50mA or less

DC voltage

:

0 to 1V DC

0 to 5V DC, 1 to 5V DC,

0 to 10V DC

Input impedance

1M

or more

100k

or more

Allowable input voltage

5V or less

15V or less

Allowable signal source
resistance

2k

or less

100

or less

Accuracy (Setting and Indication)

Thermocouple

: Within

0.2% of input span

1 digit, or within

2

(4 ) whichever is greater

However, for R, S input, 0 to 200

(0 to 400 ): Within

6

(12 )

B input, 0 to 300

(0 to 600 ): Accuracy is not guaranteed.

K, J, E, T, 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

DC voltage

: Within

0.2% of input span

1 digit

DC current

: Within

0.2% of input span

1 digit

Input sampling period: 0.25 seconds

Control

Control action

• PID action (with auto-tuning function)
• PI action: When derivative time is set to 0
• PD action (with manual reset function): When integral time is set to 0
• P action (with manual reset function): When derivative and integral time are set to 0
• ON/OFF action: When proportional band is set to 0

OUT proportional band : 0.0 to 110.0% (ON/OFF action when set to 0.0)
Integral time

: 0 to 1000 seconds (Off when set to 0)

Derivative time

: 0 to 300 seconds (Off when set to 0)

OUT proportional cycle : 1 to 120 seconds
ARW

: 0 to 100%

Manual reset

:

Proportional band converted value

Output limit

: 0 to 100% (DC current output type: –5 to 105%)

(Not available for ON/OFF action)

Hysteresis

: Thermocouple, RTD input: 0.1 to 100.0

( )

DC voltage, current input: 1 to 1000
(The placement of the decimal point follows the selection)

Control output (OUT)

• Relay contact: 1a, Control capacity

3A

250V AC (Resistive load)

1A

250V AC (Inductive load COS ø =0.4)

Electrical life, 100,000 cycles

• Non-contact voltage (for SSR drive): 12

＋２

０

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

EVT output

• Alarm output

[Alarm, Loop break alarm and Heater burnout alarm (option) utilize common output terminals.]
The alarm action point is set by

deviation from the SV (excluding Process alarm)

and when input is out of the alarm setting range, alarm (EVT) turns ON or OFF (High/Low limit
range alarm). When Deenergized is selected in the Energized/Deenergized selection, alarm
(EVT) is activated conversely.
Setting accuracy

: The same as indication accuracy

Action

: ON/OFF action

Hysteresis

: Thermocouple, RTD input: 0.1 to 100.0 ( )

DC voltage, current input: 1 to 1000 (The placement of the decimal
point follows the selection)

Output

: Open collector, Control capacity 24V DC 0.1A (Max.), Residual voltage:1.5V or less

Alarm type

: One alarm type is selectable from below by front keypad operation:

High limit, Low limit, High/Low limits, High/Low limit range, Process high,
Process low, High limit with standby, Low limit with standby,
High/Low limits with standby and No alarm action

Содержание KT7

Страница 1: ...ions it may malfunction or cause fire Be sure to follow the warnings cautions and notice If not it could cause serious injury or accidents The contents of this instruction manual are subject to change without notice This instrument is designed to be installed in a control panel If not measures must be taken to ensure that the operator cannot touch power terminals or other high voltage sections Be ...

Страница 2: ... Auxiliary function setting mode 2 in combination with the Mode key Fig 2 1 Notice When setting the specifications and functions of this controller connect terminals 1 and 2 for power source first then set them referring to 5 Setup and 8 Operation flowchart before performing 3 Mounting to the control panel and 4 Wiring 3 Mounting to the control panel 3 1 Site selection This instrument is intended ...

Страница 3: ...d horizontally in a position susceptible to vibration or shock the fastening plates must be used as well Recommended fastening plate Fastening plate ATA4806 1 Hook A of KT7 series on the upper side of the DIN rail Fig 3 4 1 2 Making B 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...

Страница 4: ...mocouple RTD etc away from power source and load wires to avoid external interference To prevent the unit from harmful effects of the unexpected level noise it is recommended that a surge absorber be installed between the electromagnetic switch coils This unit does not have built in power switch circuit breaker or fuse Therefore it is necessary to install them in the circuit externally near the co...

Страница 5: ...limit to SV high limit or scaling low limit value to scaling high limit value For DC voltage and current inputs the placement of the decimal point follows the selection 5 2 Sub setting mode Character PV display Name Description Setting range Default value SV display AT setting Performs PID auto tuning However when PID auto tuning has not finished after 4 hours PID auto tuning is cancelled automati...

Страница 6: ... alarm utilize common output terminals Rating 5A 0 0 to 5 0A Rating 10A 0 0 to 10 0A Rating 20A 0 0 to 20 0A Rating 50A 0 0 to 50 0A Loop break alarm action time setting 0 minutes Sets the action time to assess the Loop break alarm Setting the value to 0 disables the function Loop break alarm Alarm and Heater burnout alarm option utilize common output terminals 0 to 200 minutes Loop break alarm ac...

Страница 7: ...communication option is applied Not available if is indicated Modbus ASCII mode Modbus RTU mode Instrument number setting 0 Sets the instrument number Communication cannot be carried out unless an instrument number is individually set when communicating by connecting plural instruments in serial communication Available only when Serial communication option is added 0 to 95 Communication speed sele...

Страница 8: ...ailable for ON OFF action 5 to OUT high limit value Setting less than 0 is effective to DC current output type OUT ON OFF action hysteresis setting 1 0 Sets OUT ON OFF action Hysteresis Available only when the control action is ON OFF action Thermocouple RTD input 0 1 to 100 0 DC input 1 to 1000 The placement of the decimal point follows the selection Alarm type selection No alarm action Selects a...

Страница 9: ...or correction function This corrects the input value from the sensor When a sensor cannot be set at a location where control is desired the sensor measuring temperature may deviate from the temperature in the controlled location When controlling with plural controllers the accuracy of sensors affects the control Therefore sometimes the measured temperatures input value do not concur In such a case...

Страница 10: ...ted during Scaling low limit setting 7 Select Converter from Controller Converter function selection To activate the alarm action by Converter function set the alarm type to Process alarm If converter function is selected from Controller Converter function selection in Auxiliary function setting mode 2 the parameter below is automatically set Table 6 1 However this is applied only to the DC curren...

Страница 11: ...setting mode PV SV display Output MV indication Press the key Explanation of key This means that if is pressed the set value is saved and the controller proceeds to the next setting item Alarm setting procedure Numbers 1 to 6 are indicated on the flowchart 1 Alarm type Select an alarm type If an alarm type except for is selected items 2 to 6 are indicated and they can be set if necessary 2 Alarm a...

Страница 12: ...t 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 Indicator OUT Green Lit Unlit ON OFF SV setting Proportional band ON OFF 0V DC 0 12V DC 12V DC 20mA DC 20 to 4mA DC 4 to 20mA DC Proportional band Lit 0V DC 12V DC 12 0V DC 20mA DC 4mA DC Cycle action is performed acc...

Страница 13: ...390 C W Re5 26 0 to 2315 K 320 to 2500 199 9 to 750 0 J 320 to 1800 R 0 to 3200 S 0 to 3200 B 0 to 3300 E 320 to 1500 T 199 9 to 750 0 N 320 to 2300 PL 0 to 2500 C W Re5 26 0 to 4200 Pt100 199 9 to 850 0 JPt100 199 9 to 500 0 Pt100 200 to 850 JPt100 200 to 500 Pt100 199 9 to 999 9 JPt100 199 9 to 900 0 Pt100 300 to 1500 JPt100 300 to 900 4 to 20mA DC 1999 to 9999 0 to 20mA DC 1999 to 9999 0 to 1V ...

Страница 14: ...lit Lit EVT Red High limit alarm Alarm action High Low limits alarm Low limit alarm OFF ON A1 hysteresis OFF ON SV setting A1 set point OFF ON A1 hysteresis A1 hysteresis A1 set point SV setting A1 set point A1 set point A1 set point SV setting A1 set point High Low limit range alarm Process high alarm Process low alarm OFF ON OFF ON OFF ON Alarm action A1 hysteresis A1 hysteresis A1 hysteresis A1...

Страница 15: ...s will fluctuate around the SV 1 Calculating PID constant 2 PID constant calculated 3 Controlled by the PID constant set by auto tuning C In the case of a large difference between the SV and processing temperature as the temperature is falling When AT bias is set to 20 the AT process will fluctuate at the temperature 20 higher than the SV Temperature 20 higher than the SV 1 Calculating PID constan...

Страница 16: ...seconds Off when set to 0 Derivative time 0 to 300 seconds Off when set to 0 OUT proportional cycle 1 to 120 seconds ARW 0 to 100 Manual reset Proportional band converted value Output limit 0 to 100 DC current output type 5 to 105 Not available for ON OFF action Hysteresis Thermocouple RTD input 0 1 to 100 0 DC voltage current input 1 to 1000 The placement of the decimal point follows the selectio...

Страница 17: ...ion Weight Approx 120g External dimensions 22 5 x 75 x 100mm W x H x D Material Flame resistant resin Case Color Ash gray Case Attached functions Set value lock Sensor correction Power failure countermeasure The setting data is backed up in non volatile IC memory Self diagnosis The CPU is monitored by a watchdog timer and when an abnormal status is found on the CPU the controller is switched to wa...

Страница 18: ... 9 to 550 0 206 0 to 550 0 200 to 500 207 to 550 207 to 550 199 9 to 900 0 199 9 to 999 9 211 0 to 999 9 JPt100 300 to 900 312 to 1000 312 to 1000 Indication range and Control range for thermocouple inputs except above Input range low limit value 50 100 to input range high limit value 50 100 DC current voltage input Indication range Scaling low limit value Scaling span x 1 to Scaling high limit va...

Страница 19: ... whether the sensor is burnt out Thermocouple If the input terminals of the instrument are shorted and if a value around room temperature is indicated the instrument is likely to be operating normally however the sensor may be burnt out RTD If approx 100 of resistance is connected to the input terminals between A B of the instrument and between B B is shorted and if a value around 0 32 is indicate...

Страница 20: ...larm value etc The values do not change by the keys Set value lock Lock 1 or Lock 2 is selected Release the lock selection During PID auto tuning or auto reset Cancel the auto tuning if necessary Auto reset ends 4 minutes after starting The setting indication does not change within the input range even if the keys are pressed and new values are unable to be set Scaling high limit or low limit may ...

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