Kikusui PLZ164W User Manual page 202

A-14 Appendix
We assume that the overcurrent protection (OCP) setting I
rent produced by the tripping of the overpower protection (OPP) and denote the
voltage of the battery as V
R R
(R ) to increase the input current (load current), the operating point
M1 M2 T
moves along segment MT (M
When the overcurrent protection (OCP) setting is I
is reached. At this point, two types of operation are available on the PLZ-4W
depending on the protection action setting of the OCP.
If Protect Action is set to LOAD OFF, the load is turned off.
If protection action is set to LIMIT, the PLZ-4W sinks current as a constant current
load at point T. Even if you attempt to increase the current by decreasing the resis-
tance, the current is limited at point T. If you decrease the current by increasing the
resistance, the OCP is cleared. The PLZ-4W returns to CR mode, and the operating
point moves along segment MT.
Table A-9 OCP action (protect action)
LOAD OFF
Point T
If the overcurrent protection (OCP) setting is I
resistance is decreased to increase the current. Consequently, the operating point
reaches point S.
Here, the operation mode is CV. The voltage is fixed to voltage V
In this case, the operating point moves along segment QS. The current is determined
by the battery voltage and its internal resistance.
. In CR mode, if the resistance is decreased
M
M T).
1 2
Turns off the load (stops the current flow).
The PLZ-4W no longer operates as a load.
CR mode ends. OCP continues, and the PLZ-4W
LIMIT
sinks current as a constant current load.
is less than the cur-
OCP
, the OCP trips when point T
OCP
, the OCP does not trip as the
OCP1
set in advance.
Q
PLZ-4W