Kikusui PLZ164W User Manual page 29

Overvoltage
CAUTION
Polarity
CAUTION
PLZ-4W
■ Operation when the response speed is changed
You can change the response speed in CC mode (CC+CV mode) and CR mode
(CR+CV mode).
In some cases, the wire inductance increases and the phase lag of the current may
cause instability in the PLZ-4W control inducing oscillation.
In such case, you can decrease the response speed to assure stable operation.
• For a description of response speed, see section 5.15, "Response Speed."
• Do not apply voltage exceeding the maximum voltage of 150 VDC to the
load input terminal, as it may cause damage.
The maximum voltage that can be applied to
the load input terminal is 150 VDC. Voltage
exceeding the maximum cannot be used.
If overvoltage is applied, an alarm message
appears along with a beeping alarm, and the
load is turned off. In this case, immediately
lower the voltage of the equipment under
test.
• If the polarity is reversed, overcurrent may damage the EUT and PLZ-4W.
Be sure to match the polarities between the load input terminal and the equipment
under test.
+
Equipment
under test
–
Fig. 2-10 Connection by paying attention to the polarity
If the polarity is reversed, an alarm
message appears along with a beep-
ing alarm. In this case, turn off the
power of the equipment under test
within 30 seconds after the alarm is
activated. (the beeping alarm sounds
when a reverse voltage of 0.6 V or
greater is applied).
Fig. 2-9
+
PLZ-4W Series
DC150 V
Electronic Load
–
Fig. 2-11 Reverse connection alarm
Installation and Preparation 2-13
Overvoltage alarm