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LRV-1 lift control valve
1 General, product description
21/86
300-I-9010050-E-28/02.2012
1.7.2
Description of function
S
The lift control system sends the command signals to the DELCON
via potential-free relay contacts or semiconductors.
S
The feedback value is compared with the demand travel curve and
controlled throughout the whole travel.
S
Deviations from the demand curve are corrected by the UP and
DOWN proportional solenoids.
S
The closed-loop control ensures that the travel characteristics are
independent of load and temperature.
S
The inspection speed can be set through command K5 of the lift
control system (there is no monitoring of maximum permissible
demand/feedback deviation during travel at inspection speed!)
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Reduced speeds for short travel distances are also possible via
command signals K6
…
K8.
S
The DELCON enables soft-stopping (gentle halt) with very accurate
positioning (
±
3 mm).
Features
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The travel curve for the up and down directions is set and adjusted
with the Miniterminal, the Handterminal or a PC.
S
The demand curve can be set and checked at the DELCON while the
lift is at standstill.
S
Measured values can be checked with the Handterminal.
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The DELCON card is easy to exchange (1 card for all valves), which
means that rapid fault-fixing is ensured.
Note:
If the DELCON is exchanged, the installation-specific parameters
must be replicated in the new card.