pmg511en21p01 31
Heater burnout detection settings
[PAR1 → AL1L]
Set the alarm output value
[AL1L]
as the reference value to detect the heater burnout. Default setting: 0.0. Unit: A.
Note: Set to 0.0 to turn off. Set to 50.0 to turn on.
Calculation of setting value
Heating burnout set value = {
(normal heating current)
+
(heating burnout current)
} / 2
Example: If two output heaters
(200 V AC, 1 kW, 5 A)
are used, the normal heating current is 10 A
(5 A × 2)
. If one
of the heaters burns out, the heating current will be 5 A. The set value
(10 A + 5 A)
/ 2 = 7.5 A). Heating current
values below 7.5 A are considered to be a heating element burner and the alarm will turn on.
Heater
Control Output
Current Transformer
200 V AC
1 KW × 2
5.7.12 5.7.12. Alarm Output Deactivation
[PAR5 → DI-K→ ALRE]
Available only when the alarm output is set to alarm latch or alarm latch and standby sequence 1, alarm latch and
standby sequence 2. It can be set to turn off the alarm output when the alarm output is on, the alarm output con
-
ditions are cleared, or the alarm output deactivation signal is greater than the minimum signal band.
(However,
deactivating the alarm output is not available if the alarm conditions are still valid.)
The front panel digital input button function
[DI-K]
or the digital input terminals
[DI-1]
can be assigned to the
alarm output deactivation function
[AlRE]
.
To deactivate the alarm output with the digital input button
If the
[DI-K]
digital input button is assigned to turn off the alarm output
[AlRE]
and the alarm output option is set
to alarm latch or alarm latch and standby sequence, press and hold
buttons on the front panel when
the alarm output it is on.
To turn off the alarm output using a digital input (DI) terminal
If the digital input
(DI)
terminal
[DI-1]
is assigned to deactivate the alarm output
[AlRE]
, the alarm output will turn
off when the digital input
(DI)
terminal is on
(closed)
(the MAN indicator light comes on)
.
Note: For detailed information on the digital input (DI) button configuration, see ″5.10.6.2 Digital Input Button″. For detailed
information on digital input (DI) terminal configuration, see ″5.10.6.1 Digital input terminal settings [PAR5 → DI-1]″. After
deactivating the alarm output, it will operate normally at the next alarm output.