Operation - Manfrotto 851 Instructions Manual

OPERATION

SWITCHING THE CONTROL BOX INTO STANDBY MODE
Press the On/Off button on the remote control. The numbers on the display will disappear, but the on/off switch will
stay lit, indicating that the control box is still powered. While switching into standby mode all background stop levels
and current positions will be updated in the system memory, therefore we recommend you always go to standby
mode before switching the control box off. The control box should be switched off when not used for longer periods of
time.
SWITCHING THE CONTROL BOX ON AND OFF
Press the on/off switch on the box. If the control box is on, the on/off switch will light up red. While the control box is
being switched off, the background stop levels and current position are updated in the system memory, but because of
the short time taken to power-off, some data may not be updated correctly or completely, therefore it is
recommended you always roll all backgrounds up before switching off, or use standby mode as an intermediate step
before switching power off completely.
SELECTING BACKGROUNDS
Most functions are carried out on the currently selected background, whose number is shown in the control box
display. You can quickly choose a different background by pressing one of numbered background selection buttons '1'
to '10'. Additionally you can change background number with '-'/'+' buttons.
ROLLING BACKGROUNDS
To protect motors and electronics, the control box is equipped with multi level protection against over-voltage,
overcurrent, short-circuit, overheating and electrostatic discharge. If the background stops in mid-movement and the
display shows "OL" (Over Load), it means that there was too high a current flowing through the motor and the
background was stopped to prevent damage. The reason for this may be that a too heavy background has been hung
or that a frame/holder has been badly fixed causing too much friction to the motor rotation movement. Other reasons
may be that the motorised expan jack is not plugged in correctly and causes a short circuit.
Rolling the backgrounds in manual mode
Regardless of default background stop level, you can always move backgrounds in manual fast or slow
modes. Select background number, then press the "manual up" or "manual down" button to move the
background up or down. The background will roll for as long as you keep the button pressed. If you want to
move the background slowly (for precise positioning) press the 'FN' button at the same time as the "manual
up" or "manual down" button.
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