Panasonic KT4H - Alarm and Burnout Action Explanations; Heater Burnout Alarm Action; General Alarm Action Types

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11.3 Heater burnout alarm action
[15] Heater burnout alarm value and [16] Heater burnout alarm 2 value can be set in the Sub setting mode.
(p.15)
If Heater burnout alarm, Heater burnout alarm 2 and Alarm 2 are added together, they (EVT2) utilize common
output terminals.
11.4 Alarm action
[38] Alarm 1 type and [39] Alarm 2 type can be selected in the Setup mode. (p.20)
[42] Alarm 1 hysteresis and [43]Alarm 2 hysteresis can be set in the Setup mode. (p.20)
[13] Alarm 1 value and [14] Alarm 2 value can be set in the Sub setting mode. (p.15)
Alarm standby function
When the power supply to the instrument is turned on, even if the input enters the alarm action
range, the alarm is not activated.
Even if the alarm action point enters the alarm action range due to the SV being changed while the
controller is running, the alarm is not activated, either.
Once the input exceeds the alarm action point, the standby function is released, ensuring the
controller continues to run.
“A1” means Alarm 1. For Alarm 2, read “A2” for “A1”.
EVT1 indicator is for Alarm 1, and EVT2 indicator is for Alarm 2.
Terminals 3 & 4 are for the user’s own Alarm 1 indicator, which correlates directly with the EVT1 indicator.
Terminals 5 & 6 are for the user’s own Alarm 2 (or Heater burnout alarm output) indicator, which correlates
directly with the EVT2 indicator.
: Standby functions in this section.
Alarm action
ON
OFF
Setting
Load current
LargeSmall
Output
Indicator
(EVT2)
UnlitLit
5
6
5
6
High limit alarm
High/Low limits alarm
Low limit alarm
Alarm
action
Alarm
action
Alarm
action
High/Low limit range alarm
Process high alarm Process low alarm
High limit alarm with standby
High/Low limit alarm with standbyLow limit alarm with standby
OFF
ON
A1 hysteresis
SV
setting
+ A1 set pointA1 set point
OFF
ON
A1 hysteresis
SV
setting
+ A1 set point
A1 set point
OFF
ON
A1 hysteresis
A1 set point
SV
setting
A1 set point
OFF
ON
A1 hysteresis
A1 set point SV
setting
OFF
ON
A1 hysteresis
A1 set point
OFF
ON
A1 hysteresis
A1 set point
SV
setting
+ A1 set point
OFF
ON
A1 hysteresis
A1 set point SV
setting
A1 set point
SV
setting
OFF
ON
A1 hysteresis
A1 set pointA1 set point
OFF
ON
A1 hysteresis
A1 set point
+ A1 set point