12
Table of Basic Functions Section 1-3
Alarm Output and Error
Display Functions
Note (1) In this manual, the lifetime of the Unit is expressed in years.
(2) If the overheating alarm stays on for more than 3 hours, it can no longer
be cleared.
Symbol Output
name
Operation Error code
displayed
TRP Tripping
alarm output
Abnormal Voltage Tripping Operation
When the output voltage exceeds 28.8 VDC,
all branch outputs are cut off and the TRP
output is turned ON. (The photoswitch output
is turned OFF.)
A10
Abnormal Current Tripping Operation
When the branch output current exceeds the
set value, the branch output is cut off and the
TRP output is turned ON. (The photoswitch
output is turned OFF.)
A11/Current
(alternating)
Volt-amperage (VA) Tripping Operation
When the voltage times the current (VA)
exceeds the set value for a specified amount
of time, the branch output is cut off and the
TRP output is turned ON. (The photoswitch
output is turned OFF.)
A11/Current
(alternating)
Abnormal Total Current Tripping Operation
When the total output current exceeds the set
value, all branch outputs are cut off and the
TRP output is turned ON. (The photoswitch
output is turned OFF.)
A12
Indicates that there are branch outputs that
are not connected. This error is not output in
any mode other than Test Mode.
When there is a disconnected branch output
in Test Mode, the TRP output is turned ON.
(The photoswitch output is turned OFF.)
---
LOW Undervolt-
age detec-
tion output
Setting range: 18.0 to 26.4 VDC (0.1-V incre-
ments)
When the output voltage falls below the set
value, the LOW output is turned ON. (The
photoswitch output is turned OFF.)
A21/Voltage
(alternating)
LFE Mainte-
nance fore-
cast monitor
output
Setting range: 0.0 to 5.0 years (0.5-yr incre-
ments) (See note 1.)
When the internally calculated replacement
time falls below the set value, the LFE output
is turned ON. (The photoswitch output is
turned OFF.)
A23/
Replace-
ment time
(alternating)
Overheating
alarm (See
note 2.)
LFE output is turned ON (the photoswitch out-
put is turned OFF) when the replacement
time cannot be calculated correctly due to rise
in internal temperature.
A23/HOT
(alternating)
TMP Over-tem-
perature
output
Setting range: 25 to 90°C (1°C increments)
When the temperature falls below the set
value minus 3°C, the TMP output and the
error code shown on the seven-segment dis-
play will be automatically cleared.
A30/Temper-
ature (alter-
nating)
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