Ikegami OCP-300, Operation Manual

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5-8 5. Operation of the Control Knob
5.4 Knob Free Function
OCP-300 has the knob free function. With this function, the control knob operation
becomes invalid while the knob free switch is being pressed. Therefore, this function is
useful for preventing the control knob to be effective on only one side or for expanding
the operation range of the control knob.
1) Operation Concept
When the control knob is operated, there are cases that the internal potentiometer
becomes the maximum or the minimum mechanically, and further control becomes
impossible. In that case, return the control knob to the center while keep pressing the
knob free switch. By releasing the knob free switch, control becomes possible for the
range, where the operation was unavailable due to the control knob status at the
maximum or the minimum position.
However, expanding the control range of the camera itself is not possible even when the
knob free function is used.
㻡㻜 㻡㻜
㻣㻡㻙㻡㻜㻩㻞㻡
㻡㻜 㻣㻡 㻣㻡
᧯స⠊ᅖ䛾ᣑ኱
䝬䝙䝳䜰䝹
䝣䜯䜲䝹
㻥㻜
㻢㻡
㻢㻡㻙㻡㻜㻩㻝㻡
䝜䝤䝣䝸䞊
㻻㻲㻲 㻻㻺 㻻㻲㻲
㻣㻡㻔㼙㼍㼤㻕
䝁䞁䝖䝻䞊䝹
䛴䜎䜏
When the command between the camera and the control panel is reconnected after
turning on the power or the panel enable, there is a case that the control range becomes
effective at only one side depending on the control knob position. After the reconnection,
set the control knob to the center while keep pressing the knob free switch. In that way,
the condition that the control range is effective only on one side can be resolved.
Knob free
Expanding the control range
Manual file
Control
knob