LRC-M1 and LRC-L1 Remote Control
User Manual
14
9M02-7634-A001-EN
Version 3
5. Features
5.1
Automatic Turn-Off
The OCU turns off automatically when the following events occur:
•
Battery discharge protection (battery low)
•
Auto Off timeout expires (pre-set between 30 seconds to 30 minutes)
•
Internal failure (hardware or software)
5.2
Enable / Push to Operate (PTO) Switches
Push to Operate is an optional feature that requires the user to press a switch before a function or set of functions
are made active. This can be applied to any controller and is implemented in the MCU software.
When a switch must be pressed down while the joystick is in use, operators may find it physically demanding. For
this reason, the PTO button is normally used as an enable to start the motion; that is, the button must be pressed
before a motion is activated, but once the motion is active the button does not need to be maintained. Once the
motion is returned to neutral, there is an approximately 2 second delay (during which the motion can be
reactivated) before the button once again has to be pressed.
Often, a client will choose not to use the buttons at the end of the joysticks, but instead use a button or toggle on
the controller that must be pressed just before commencing to activate a motion. It achieves the same goal but
typically at lower cost.
Because it is used in logic, the enable function on a joystick, button, or toggle can be used to enable any single or
set of functions on the controller.
5.3
Vigilance
The Vigilance function is an optional feature and is another method of maintaining the system in an active state; it
is available for any LRC controller.
This method requires the operator to repeatedly activate a switch before a software timer expires.
As an example, an operator may be required to activate a toggle switch every 30 seconds or less. If the operator
fails to reset the toggle switch, a warning is issued for 10 seconds. During this period the operator can still reset
the vigilance function, but if this period times-out without resetting, the OCU shuts down.
The Timeout time is configurable for any time between 1 second and 11 minutes, in 1 second increments.
The Warning period is configurable between 0 and 59 seconds.
Note that this feature is more closely related to machine and vehicle operation than crane use.
5.4
Tilt
The Tilt function is an optional feature and a safety function designed to shut down the OCU if it is tilted (for
example, if an operator falls over). It is available for any LRC OCU.
The Tilt angle may be configured for angles between 30 and 60 degrees in 5 degree increments.
The Tilt time delay (the period for which the unit can remain tilted before a penalty) is configurable between 0 and
30 seconds. During this period the OCU issues an audible warning of impending penalty.
