SanRex CALPOTE UF-1 Series Instruction Manual page 16

F
This detects fuse disconnection when a fuse built in the unit (optional) is disconnected. On detection of
fuse disconnection, an "F" indication lights up and operation stops. To resume operation, turn off the
control power supply.
HET
The optional function is provided to detect heater disconnection. On detection of heater disconnection,
an "HET" indication lights up and operation continues.
THY
The self-diagnostic function is provided to detect Thyristor open or short. On detection of Thyristor
open or short, a "THY" indication flickers and operation stops. To resume operation, turn off the control
power supply.
LOD
The self-diagnostic function is provided to detect load open or short. On detection of load open or
short, an "LOD" indication flickers. Operation continues in the event of load open. Operation stops in
the event of load short. To resume operation, turn off the control power supply.
FRQ
This detects abnormal frequency in the event of any abnormality with frequency of control power sup-
ply. On detection of abnormal frequency, an "FRQ" indication flickers and operation continues.
L. Vo
This detects power supply undervoltage when the voltage of control power supply falls below its appro-
priate value. On detection of power supply undervoltage, an "L. Vo" indication flickers. Operation is at a
standstill only while such abnormality is detected. When the detection of abnormality is released, oper-
ation is automatically resumed.
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