
3. α SERIES PARAMETER ADJUSTMENT B-65150E/04
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(2-2) Separate serial detector coder
These alarms are identified from alarm 7. The meanings of the
bits are as follows:
Alarm 7
OHA LDA BLA PHA CMA BZA PMA SPH
Description Action
1
Soft phase alarm
2
1
Pulse error alarm
(serial rotary)
1
Zero volts in battery
1
1
Count error alarm
(serial rotary)
2
1
Phase alarm (serial linear)
2
1
Voltage drop in battery
(warning)
1
1
LED abnormality alarm
1
Separate detector overheat
alarm
Action 1: Battery-related alarms
Check whether the battery is connected. When the power is turned on
for the first time after the battery is connected, a battery zero alarm is
issued. In this case, turn the power off then on again. If the alarm is
issued again, check the battery voltage. If the battery voltage drop
alarm is issued, check the voltage, then replace the battery.
Action 2: Alarms that may be issued by noise
When an alarm is issued intermittently or issued after emergency stop
is released, there is a high possibility that the alarm is caused by noise.
Take thorough noise-preventive measures. If the alarm is still issued
continuously after the measures are taken, replace the detector.
CAUTION
For alarms with no action number indicated, the pulse
coder may be defective. Replace the pulse coder.
CAUTION
For alarms with no action number indicated, the
detector may be defective. Replace the detector.