
68
PBZ
Protection Features and Alarms
Alarm Feature
An alarm sounds when any of the following protection features are activated. The alarm does
not sound if the V-LIMIT or I-LIMIT protection feature is activated.
•
OVP
•
OCP
•
OHP
•
OPP
•
120 % OVP
Clearing alarms
•
When an alarm is activated, press the ALM CLR (SHIFT + PROT) key.
If the POWER switch does not turn off even though an alarm has been activated, the
alarm will be activated again unless you eliminate the cause of the alarm.
•
If the alarm activation caused the POWER switch to turn off, first eliminate the cause of
the alarm, and then turn the POWER switch back on.
•
If the cause of the alarm was overheat protection (OHP), you cannot turn the output
back on until the PBZ’s internal temperature lowers to a safe level. If you press
OUTPUT, the overheat protection (OHP) will be activated again.
If an alarm still occurs even after you have corrected all the causes of alarms, the PBZ may
be malfunctioning. Stop using it immediately, and contact your Kikusui agent or distributor.
Protection feature
Alarm generation
1
1
An ALARM SIGNAL is transmitted from the J1 connector.
Alarm displayed on the screen
Overvoltage
protection
OVP (OUTPUT-OFF)
Yes (buzzer)
+OVP:
The voltage exceeded the positive
voltage activation point.
-OVP
2
:
The voltage exceeded the negative
voltage activation point.
2
In unipolar mode, -OVP does not function.
OVP (POWER-OFF)
V-LIMIT (Voltage limit)
No
Yes (buzzer)
120 % OVP (OUTPUT-
OFF)
+OVP:
The voltage exceeded the positive
voltage activation point.
-OVP
2:
The voltage exceeded the negative
voltage activation point.
Yes (buzzer)
120 % OVP
(POWER-OFF)
Overcurrent
protection
OCP (OUTPUT-OFF)
Yes (buzzer)
+OCP:
The current exceeded the positive
current activation point.
-OCP:
The current exceeded the negative
current activation point.
OCP (POWER-OFF)
I-LIMIT (Current limit)
No
Overheat
protection
OHP
Yes (buzzer)
OHP:
Power limit
P-LIMIT
Yes (buzzer)
When the output power
continuously exceeds
the limit for 10 seconds
or more
OPP:
See
See
See
Содержание PBZ20-20
Страница 11: ...PBZ 11 ...
Страница 18: ...18 PBZ ...
Страница 75: ...Memory Response and Configuration This chapter explains preset memory setup memory response and configura tion ...
Страница 95: ...Sequences This chapter explains sequences ...
Страница 153: ...Maintenance This chapter describes how to clean and inspect the PBZ ...
Страница 156: ...156 PBZ Maintenance ...
Страница 157: ...Appendix A List of Factory Default Settings B Troubleshooting C List of Error Messages D Options ...