S&C Instruction Sheet 661-500 27
Appendix A
BATTERY TEST Pushbutton
NOTICE
The battery test can also be done remotely by applying
external 24-Vdc to pin 6 (positive) and pin 7 (negative)
of the J2 connector .
During the first 24-hour operation period, the battery is
automatically tested every two hours . After that, when
ac power is present and the charger is not turned off,
the battery is tested once a day at midnight (per set
charger time) . If the battery is powering the charger
because of a loss of the ac source, a battery test will
occur every two hours .
To test the 24-Vdc battery without the use of a computer,
the BAT TEST pushbutton can be used.
Complete the following steps to test the battery:
STEP 1.
Press and hold the BAT TEST pushbutton for
three seconds.
STEP 2.
After releasing the pushbutton, the battery test
will start in about five seconds. Looking at the
LCD screen, the user will see a status bar during
testing. When the status bar on the LCD screen
is full, the test will be complete.
STEP 3.
When the test is complete, the user can see the
results of the battery test on the LCD screen by
waiting until a “br” (battery record) text appears
at the top of the LCD screen as the parameters
scroll. Every parameter the “br” text is displayed
over is the result of the test. The following
parameters are measured/recorded:
• Battery status
• Date
• Time
• Temperature
• VL (voltage under load)
• BZ (battery impedance)
NOTICE
The battery test results on the LCD
screen will be overwritten by the results of
subsequent battery tests . The battery test
results on the LCD screen are also cleared
if the charger is turned off and then turned
back on .
When the battery charger is powered from
battery only (no ac present during testing),
battery impedance (BZ) will display NA
(not applicable) . When ac is present during
testing, battery impedance (BZ) displays in
ohms .
Removing the Battery for Maintenance or
Replacement
Complete the following steps to remove a battery:
STEP 1.
Disconnect the two-pin connector separating
the battery from the charger. See Figure 17 on
page 18.
STEP 2.
Run a battery test by pressing the BAT TEST
pushbutton.
STEP 3.
Confirm the
NO BAT
message appears on the
LCD screen.
STEP 4.
To place a new battery or to rewire the existing
battery to the charger, follow Steps 2 through 4
of the “Connecting and Powering On the
Charger with a 24-Volt Battery” section on page
18.
STEP 5.
Push the RESET pushbutton on the charger.
When pushed, the question “OVR BAT?”
(Override battery record?) will display on the
LCD screen.
STEP 6.
Push the DOWN pushbutton to select the
No
option, or the UP pushbutton to select the
Yes
option. Selecting the
No
option means the
battery records will not be overwritten.
Selecting the
Yes
option means all battery
records will be deleted and new battery records
will be stored. This enables the charger to
connect to the battery.