The action assigned to a limit can be:
STOP - stop crosshead at current position.
RETURN - return crosshead to gauge length.
CYCLE - change direction of crosshead motion at
the limit.
OFF - no action
An indicator lamp lights at the active limit and at the re-
lated crosshead action key. A STATUS indicator lamp is lit
whenever a limit is set to control a crosshead action. When-
ever a STOP or RETURN action occurs as the result of a
limit, the related STATUS lamp flashes.
Crosshead Control Section
The crosshead control keys, located at the bottom of the
Front Panel are used for manually controlling crosshead
functions. The STOP, UP, DOWN and RETURN keys
each have an associated indicator lamp which is lit when
the function of the key, as described below, is control-
ling the crosshead.
STOP - crosshead stops.
UP - crosshead moves up at programmed speed.
DOWN - crosshead moves down at programmed
speed.
RETURN - crosshead returns at a speed which in-
creases exponentially to maximum and then de-
creases exponentially to stop crosshead at gauge
length.
Introduction
Front Panel
1-11
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