NAiS KT7, Instruction Manual

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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) turns ON or OFF (High/Low limit range alarm).
When Deenergized is selected in the Energized/Deenergized selection, alarm (EVT)
activates conversely.
Setting accuracy : The same as indication accuracy
Action
: ON/OFF action
Hysteresis : Thermocouple and RTD inputs: 0.1 to 100.0 ( )
DC voltage and current inputs: 1 to 1000 (The placement of the
decimal
point follows the selection)
Output : Open collector, Control capacity 24V DC 0.1A (Max.)
Alarm output action : One alarm action is selectable from below by front key 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
Energized/Deenergized: Alarm (EVT) output Energized/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 turned off.
• Loop break alarm output (Common output with Alarm and Heater burnout alarm [Option])
Detects heater burnout, sensor burnout, and abnormality at operation end.
Setting range: Loop break alarm action time setting: 0 to 200 minutes
Loop break alarm action span setting
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)
Output: Open collector, Control capacity, 24V DC 0.1A (Max.)
Converter function : See “6. Converter function”
n Insulation • Dielectric strength : Circuit insulation configuratio
EVT Input
CT input
CPU
Insulation
Power supply OUT
5
4 3
9 8
1
2
7 6
Insulated resistance: 10M or greater at 500V DC
Dielectric strength: 1.5kV AC for 1 minute between input
terminal and power terminal
1.5kV AC for 1 minute between output terminal and power terminal
Power consumption : Approx. 6VA
Ambient temperature : 0 to 50
Ambient humidi y : 35 to 85%RH (no condensa t tion)
x D)
Weight : Approx.120 g
External dimension : 22.5 x 75 x 100mm (W x H