20
BA491701-en
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4.10
Load Acknowledge Switch (Optional)
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A
Spring-loaded thrust pieces
C
Prism support
B
Simple support plate
D
Non-contact proximity switch
MAHA's mobile lifting systems for trams come standard with an electronic overload protection,
which automatically detects overload occurring at any one column and subsequently shuts off the
system.
In addition, load acknowledge switches are optionally available for tram lifts. Using these switches,
correct load positioning at the lift supports can be easily monitored. Each column is positioned at
the load and switches off as soon as the load properly contacts the support. When all columns
have been positioned correctly at the load (Setup mode), the lift control switches over to regular
operation (Automatic mode).
The load acknowledge switches can be used in combination with various supports such as simple
support plates or prism supports.
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Setup mode
Automatic mode
1 Load does
not lie flat
against
support of this
column.
Display code is
flashing.
2 Load does
lie flat against
support of this
column.
Display code
lighting
permanently.
3 Load does
lie flat against
supports of all
columns.
Lifting system
is ready for
operation.
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