User Manual

22
Figure 4-14 Software Settings Max
4.5 protection function
The load includes several protection features described below
4.5.1 Over-voltage protection (OVP)
When the input voltage is greater than the maximum voltage, the load over-voltage protection, input OFF,
buzzer beep, VFD display the following information "OVER VOLT".
Users can set the maximum voltage in MENU and press Shift + 0 (Menu), then press ▼ to load "MENU
SYSTEM SET" and press "Enter" to enter "SYSTEM IMAX = xxxxxxxxA" Press Up and Down keys to adjust until the
load shows "SYSTEM UMAX = xxxxxxxxV". This is the current voltage maximum value. At this time, users can input
the maximum current value required by numeric key and decimal point key, and press Enter key to confirm. The
user can press the Esc key to exit the MENU main menu.
Please note that the maximum voltage of type PEL-8150 load is 150V maximum, setting above 150V will be
automatically adjusted to 150V.
In addition, the setting of the maximum voltage will affect the resolution of the voltage display. The voltage
resolution of the load is 0.1 mV when the maximum voltage is set to 20 V or less, and the voltage resolution is set
when the maximum voltage is set to 20 V or more Rate is only 1mV.
4.5.2 Overcurrent protection (OCP)
When the load input current increases to the current upper limit, the load will be adjusted to the maximum
protection current input, the buzzer will sound and VFD will display the following message "OVER CUR"
Users can set the maximum voltage in MENU and press Shift + 0 (Menu), then press ▼ to load "MENU
SYSTEM SET" and press "Enter" to enter "SYSTEM IMAX = xxxxxxxxA" This is the current maximum current value. At
this time, users can input the maximum current value required by numeric keys and decimal point, and press Enter
key to confirm. At this point the user can press the Esc key to exit the MENU main menu.
Please note that the maximum current for the PEL-8150 load is 30 A maximum and settings in excess of 30 A
will be automatically adjusted to 30 A.
In addition, the setting of the current maximum will affect the resolution of the current display. The voltage
resolution of the load is 0.01 mA when the maximum current value is set to 3 A or below, and the voltage resolution
when the maximum voltage is set to 3 A or more Rate is only 0.1mA.
4.5.3 Over Power Protection (OPP)
When the power consumption increases to the power upper limit, the load over-voltage protection, input OFF,
buzzer sounding, VFD display the following information "OVER POW", user needs to press any key to restore, pay
attention to the input state is OFF, When the selected key is ON / OFF, the load will be loaded again. If the over
power condition is not cleared, the load will prompt "OVER POW" again.
The user can set the power maximum value in the MENU and press Shift + 0 (Menu), then press the ▼ key to
display "MENU SYSTEM SET" and press Enter to enter the display, "SYSTEM IMAX = xxxxxxxxA" Press up and down
keys to adjust until the system prompts "SYSTEM PMAX = xxxxxxxxW". This is the current power maximum value. At
this time, users can input the required maximum power value by pressing numeric keys and decimal point key, and
press Enter key to confirm. At this point the user can press the Esc key to exit the MENU main menu.
Please note that the maximum power of PEL-8150 type load is 300W maximum, and the setting exceeding
300W will be automatically adjusted to 300W.
4.5.4 Reverse input polarity
When the input polarity is reversed, the buzzer sounds and the VFD displays the following message "REVERSE".