6-6 Single-phase, Three-wire Operation
OT01-PCR-LA/2
6.8
Steps to be Taken in the Event of an Alarm
If an alarm occurs, an intermittent buzzer tone will sound and “ALARM” will light
up or “Err X” (X: number) will be displayed (for an Err X display, no buzzer
sounds). In such a case, the protective function relevant to the cause of the error will
operate to prevent an escalation of the problem and to protect the connected load
from breakage.
• If an alarm occurs, the AC power supply always turns the output OFF.
• There may not be a problem in the power supply, depending on the alarm type. In
such a case, clear the alarm and use the power supply as usual.
Operating procedure
1.
Always turn the SYSTEM POWER switch OFF.
If any step other than this is taken, the ALARM indication may be cleared, pre-
venting checking of the alarm type.
2.
Wait for more than 5 seconds after turning the SYSTEM POWER
switch OFF, then turn the switch ON again.
If no alarm occurs, the AC power supply can continue to be used.
3.
If an alarm occurs again, check the type of alarm in accordance with
the SELF TEST described below, and take the appropriate steps to
deal with such an alarm.
■
Alarm-type checking procedure (SELF TEST)
The self-test function is integrally activated from the U-phase unit’s control
panel.
4.
While “ALARM” is lit, press the SELF TEST (SHIFT, 3) key on the U-
phase unit.
This will cause “No. X” to appear in the current display area and “Ad. X” to
appear in the voltage display area.
5.
Turn JOG. This will cause the content of the current display area and
that of the voltage display area to change. Then, read the number dis-
played in the “No.” area when “Ad. 0” appears.
“Ad.” is the number of a power unit in the AC power supply (Table 6-1).
Turning JOG causes the numbers in “Ad.” and “No.” to change, in addition to
the letter “U” or “V” at the left of the voltage display area. Each letter indicates
that the relevant phase power supply is under self-testing.
6.
Take measures corresponding to the displayed “No.” in accordance with
Table 6-2.
NOTE
Summary of Contents for OT01-PCR12000LA/2
Page 10: ...VIII Contents OT01 PCR LA 2 ...
Page 16: ...1 6 General OT01 PCR LA 2 ...
Page 44: ...2 28 Installation and Preparation for Use OT01 PCR LA 2 ...
Page 56: ...4 8 Part Names and Functions OT01 PCR LA 2 ...
Page 64: ...5 8 Single phase Parallel Operation OT01 PCR LA 2 ...
Page 82: ...6 18 Single phase Three wire Operation OT01 PCR LA 2 ...
Page 94: ...1 2 Index OT01 PCR LA 2 ...
Page 95: ......
Page 96: ...OUTPUT EXPANSION KIT OT01 PCR LA 2 OPERATION MANUAL ...
