15
5.2.3 Reverse orientation
The reverse orientation parameter is used to compensate for crossed motor cables, a gearbox that alters
the direction, or similar.
0 means regular orientation. 1 means reversed orientation.
The
Reverse orientation
parameter is available in the
DC out
groups.
5.2.4 Current limits
Overcurrent is a limit that is used to detect if the actuator is overloaded, runs into any obstacle, or reaches
an end limit (if limit switches are not used). The movement will be stopped if the motor current is above the
set limit for 250 ms. If the motor current is 2 A above the set limit, the movement will stop immediately.
There is one current limit parameter in each direction:
Max current forward
and
Max current backward
.
The parameters are set in mA.
The
Max current forward
and
Max current backward
parameters are available in the
DC out
groups.
5.2.5 Duty cycle
To prevent the actuator motors from overheating, the REAC control systems have a built-in supervision
and protection feature. There are three levels used to determine if the user shall be warned or if the
operation should stop. In the control box, this is realized as a percentage out of a total time.
The following levels can be configured per actuator channel:
•
ED warning level
: At this level, the alert LED on the hand control will light up when the motor is
running.
•
ED no start level
: At this level, the motor will not start anymore, until after “cool down”. An already
started movement will continue at current or lower speed.
•
ED stop level
: At this level, the motor will stop immediately. The motor will stop even in the middle
of a movement.
The parameters are set in percentage of time using a motor, within a certain period (duty cycle). Most
REAC actuators have a specified duty cycle of 2 minutes run, followed by 18 minutes of rest; in total 20
minutes.
The duty cycle parameters are available in the
DC out
groups.
5.2.6 Regular input throttle
It is possible to control the reaction speed for the regular buttons on the hand control.
Using a button on the hand control will result in a request to start a movement at a certain throttle level.
This level, one for each channel, is set by the regular input throttle parameters.
The parameters are set in percentage of full throttle input signal.
The regular input throttle parameters are available in the
Operation
group.
The regular input throttle parameter is only intended for control of the button speed.
To adjust for different actuators and mechanical factors, the gain parameters should be
used, see section 5.2.2.
Содержание RCB10+
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