Kikusui PCZ1000A, Operation Manual, Page: 41 / 100

PCZ1000A
3-7
3
Ope
ration
3.4 Protection Functions and Alarms
If an abnormal input is detected by the internal circuit of the PCZ1000A, the
PCZ1000A automatically goes to load-off to protect the equipment under test, an
alarm message appears on the lower part of the front panel display, and a buzzer
sounds. The PCZ1000A is equipped with the following protection functions and
alarms.
• Overcurrent Protection (OCP) • Overvoltage Protection (OVP)
• Overpower Protection (OPP) • Overheat Protection (OHP)
• Peak Overcurrent Protection (POCP)
• Internal circuit protection (FUSE BRK)
• External alarm 1(EXT1) • External alarm 2 (EXT2)
Alarm Occurrence and Release
Alarm occurrence
An alarm is triggered when a protection function activates. When an alarm occurs,
the PCZ1000A goes to the load-off state, displays an alarm message on the lower
part of the front panel display, and sounds a buzzer.
Clearing an alarm
A generated alarm can be cleared by pressing the SHIFT + ESC key. If you cannot
clear the alarm even when all of the causes of the alarm are eliminated, the
PCZ1000A may have malfunctioned. If this happens, stop using the PCZ1000A and
contact your Kikusui agent or distributor.
Protection Functions
The alarm displayed on the front panel display is the most recent alarm message to
have been detected.
Overcurrent protection (OCP)
The OCP function is activated if the current reaches 11.5 Arms or more. In this case,
the buzzer sounds and the PCZ1000A automatically goes to the load-off state.
The following message appears in the lower part of the front panel display.
*ALARM* OCP