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e. Charging Indicator Test
Charging Indicator contains 10 LEDs, 3 red, 4
yellow and 3 green.
All Indicators illuminated indicates full charge.
Indicators flash when charging is in process.
The following list shows the battery charge level as
indicated by the lighted LED's:
3 green 100% -Fully charged
2 green 89%
1 green 78%
4 yellow 67%
3 yellow 56%
2 yellow 45% -Needs Charging (BATT
indicator on pendant will flash)
1 yellow 34% -Needs Charging
3 red 23% -Needs Charging
(poor performance)
2 red 12% -Needs Charging
(intermittent performance)
1 red 1% -Needs Charging
(inoperable)
Main Power Switch must be ON and power cord
attached and plugged into outlet for charging sys-
tem to operate.
Test output from relay box at CN3 pin 11 common
and pin 1 (lowest charge) meter should read approx.
1.8 VDC. See figure 5-6.
Figure 5-6
5-6. Pendant Control
The Pendant Control is part of the solid state, multi-
plex, logic control system. The pendant control
contains illuminated, circuit board mounted switches
and a micro processor. The encoded output from the
pendant control is serial bit stream logic.
The output signal is transmitted to the micro pro-
cessors in the relay box where the logic is decoded
and the appropriate relays for the selected function
are activated.
Pendant Control troubleshooting should begin by
switching the operating mode of the table. For
example; if a function fails when operating the table
in the AC120V mode, switch to the BATTERY
mode. If the function now operates, the problem is
not the pendant control and probably is a problem
located between the power cord and the relay box.
If the function also fails when in battery operation,
use the auxiliary switches to operate the function.
If the function now operates, the problem is prob-
ably in the pendant control, connectors or wiring
from the pendant control to the relay box.
d. Test Results
If you do not receive the correct readings, the
connectors, wires, or the Capacitor/Rectifier Unit
may be defective.
NOTE
Normal charging time for a fully dis-
charged battery is approximately 8
hours.
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