MIZUHOSI 2009
NW0510 Rev. D
21
indicator light on the control panel or the hand pendant. This button applies electrical
current to each of the four jackscrew motors. Each leg is monitored by the controller for
contact with the floor. In the case of an uneven floor, it is possible that one or more legs
will continue to extend until firm contact is made with the floor. Complete locking is
evidenced by the illumination of the green LOCKED WHEN LIT indicator located on the
control panel and the FLOOR LOCK ON LED located on the hand pendant. The table
should not move on its wheels when floor locks are engaged.
NOTE:
The table controller requires that the floor lock system be completely engaged
before any other function can be operated. If the hand pendant or the joystick will not
operate the table, verify that the floor locks are completely deployed, such that the table
does not move.
To unlock the floor lock, press and hold the UP TO UNLOCK button until the amber
STOWED WHEN LIT indicator on the control panel and the FLOOR LOCK STOWED
LED located on the hand pendant are illuminated indicating that the legs are completely
retracted.
WARNING:
Press and hold DOWN TO LOCK button until green LOCK WHEN LIT light is
illuminated on the control panel, and that the FLOOR LOCK ON LED on the hand
pendant is illuminated. Table is locked if it cannot move on its wheels. Ensure
each floor lock is fully engaged before use.
7.6 Battery Charging
The Allegro™ 6800 Table is designed to use two 12 volt batteries in series to provide 24
volts. When battery status LED on the hand pendant is red, batteries need to be
charged. To charge the batteries, simply plug the power cord into an appropriate
hospital grade outlet and turn the power switch on.
While in storage, it is desirable that the table be plugged in and the power switch turned
on so that the batteries remained charged. If this is not possible, the batteries must be
charged for at least three hours a week. This can be accomplished when using the
table under line power.
To ensure proper battery function, it is recommended that the batteries be charged for
at least 3 hours within the previous 48 hours prior to use. The battery status LED on the
hand pendant must be illuminated green when the table is on. The batteries should be
replaced every 5 years or when they fail to hold a charge.
7.7 Power Supply - AC & DC Operation
The system power supply converts AC power, 120-volt, 60Hz or 230-volt, 50Hz into
24VDC (nominal) operational power. There are four 24VDC output ports, each with a
circuit breaker for thermal and short-circuit protection. Two are unregulated at 10-Amps
with voltage between 36VDC and 22VDC depending on load and one at 15-Amps with
voltage between 36VDC and 22VDC depending on load. The fourth DC output port is
regulated at 24VDC +/- .25 ,and has no circuit protection within the power supply tray.
When powered from an AC source, the batteries in series are constantly being charged
at a variable rate depending on the charged state. Battery charge status is monitored by