Dokument-No.:2013366
Version a
page
7
Creation date: 28.11.2007
3.2.2. Outputs
Hydraulic motor
The hydraulic engine runs only during the raising operation of the Wedge (Standard).
If the hydraulic drive unit is equipped with an accumulator (optional) the engine may running also to
refill the accumulator. This process is activated by a pressure watcher and is not depending on the
operation of the Wedge.
Lighting blocking element
The lighting flashes during lifting and lowering. If the fully raised position is reached, the light
shines continuous.
Solenoid valve “raise”
The solenoid valve “raise” is activated, in order to raise the Wedge.
Solenoid valve lowering
The solenoid valve “lower” is activated, in order to lower the Wedge.
Advance warning raise
The output is activated with the operation command “raise”. The Wedge raises after expiration of
the adjustable pre-set time T3.
During the expiration of the advance warning pre-set time a red traffic light flashes.
Traffic light
The traffic light indicates green only if the limit switch “lowered” is occupied.
If the command “raise“ is given in any position the traffic light will switch to red.
3.2.3. Potential free status signals
Wedge raised
If the Wedge is in the completely raised position, then the potential-free status signal is activated.
The contact is available as change-over switch.
Wedge down
If the Wedge is in the completely lowered position, then this potential free status signal is activated.
The contact is available as change-over switch.
Malfunction
The status signal “disturbance” is activated during run time excess, optionally too little oil, to high
oil temperature or disengaged motor circuit switch (contact is available as change-over switch).
