Alpha Technologies Cordex Controller Ver.3.1x - Manual (Page 42)

0700015-J0 Rev B 40
The menu items described below can be configured via a virtual numeric keypad ( ) or by toggling the
listed item. For a basic programming example, see 4.7.3.
6.3.2.1 Float (FL) Voltage
The Supervisor can set the system BATTERY VOLTAGE (measured at an analog input channel) to the
desired float voltage value. Float voltage charges the battery string and supplies the load. Normally, the
power system will operate in the float mode. This setting should have a minimum of LVD + 1 V and a
maximum of OVP – 1 V.
6.3.2.2 Equalize (EQ) Voltage
The Supervisor can set the system BATTERY VOLTAGE (measured at an analog input channel) to the de-
sired equalize voltage value. Equalize voltage charges the battery string at a higher than normal voltage
to either recharge batteries after a power failure or to balance individual cell voltages. Periodic equalizing
of the battery string may be required to optimize battery performance and life. This setting should have a
minimum of LVD + 1 V and a maximum of OVP – 1 V.
6.3.2.3 Battery Test (BT) Voltage
The Supervisor can set the Battery (Discharge) Test Voltage to the desired value during the test (mode).
This setting should have a minimum of LVD + 1 V.
6.3.2.4 Safe Voltage
The Supervisor can set the default system voltage (Safe Mode) in the event that communications to Cor-
dex rectifiers should fail. See 2.5 for more details about this feature.
6.3.2.5 OVP Voltage
The Supervisor can program one OVP setting for all connected rectifiers. OVP will disable a rectifier that
outputs an abnormally high voltage.
6.3.2.6 Low Voltage Alarm (LVA)
The Supervisor can program one LVA setting for all connected rectifiers. LVA serves as a warning to the
user indicating that output voltage is dropping.
6.3.2.7 High Voltage Alarm (HVA)
The Supervisor can program one HVA setting for all connected rectifiers.
HVA serves as a warning to the user indicating that output voltage is rising. This value should be less
than the OVP setting in order for the HVA to work effectively.
6.3.2.8 Current Limit (CL)
This menu item sets the level as a percentage at which current limiting activates in all connected recti-
fiers. Current limiting is a primary response to output over current situations. If the output current on the
rectifiers exceeds the current limit setting, their output voltage will automatically decrease but will main-
tain the current output at the current limit level. This prevents potential damage to the rectifiers.
If the CXC finds rectifiers in the system that cannot meet the default current limit value, the CXC will cor-
rect its default limit setting to match the rectifiers.
Discard changes and return to
previous screen
Sliders and scroll bars are used
for navigation Select menu item to
configure
Accept changes and return to
previous screen
Figure 37 — Configure Settings (rectifiers) window