Autonics TK4S - Page 86

6 Parameter Settings and Functions
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6.4.9.1 Heater Burnout Detection Settings [PAR1 → AL1.L/ AL2.L]
Set the alarm output value (AL□.L) as the reference value for heater burnout detection.
Setting
Group
Parameter Setting Range
Factory
Default
Unit
PAR1
AL1.L
00.0
to
50.0
00.0
A
AL2.L
Set to
00.0
for OFF. Set to
50.0
for ON.
Setting Value Calculation
: Heater Burnout Setting Value = {(Normal Heater Current) + (Heater Burnout Current)}/2
If using a single output heater (Capacity: 200 VAC, 1 KW, 5 A), normal
heater current is 5 A, and burnout heater current is 0 A, the setting value
is calculated as (5 A + 0 A)/2 = 2.5 A. Therefore, heater current values
less than 2.5 A will be deemed heater burnout and the alarm will activate.
When two output heaters (Capacity: 200 VAC, 1 KW, 5 A) are used,
normal heater current is 10 A (5 A X 2 EA). If a single heater burns out,
the heater current becomes 5 A. The setting value is calculated as (10 A +
5 A)/2 = 7.5 A). Heater current values of less than 7.5 A are deemed
heater burnout and the alarm activates.