ABB Zenith ZTX Series, Operation, Maintenance, And Installation Manual

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Ze nit h Z T X S e r i e s AT S , O PER ATI O N , M A I NTEN A N CE , A N D I N S TA LL ATI O N G U I D E
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3.2 Operating and locking
The operation mode is selected by using
the slide switch (Hand - Locking - AUTO)
located on the front of the automatic
transfer switch (ATS).
• Hand-position = Manual mode, enabling
emergency manual operation using the
handle. ATS functionality is disabled
when in Hand position.
• Lock-position = Locking mode, padlock-
ing the automatic transfer switch in a
specific position to prevent automatic
and manual operation.
Notice
The handle has to be in its stored position
(not in use), after which the slide switch will
move to the Locking mode automatically and
the switch is allowed to be padlocked. To set
the operating handle back to its place, refer to
the left most picture in Fig. 3.6.
• AUTO-position = Automatic control
mode enabled, ATS is operable in Auto-
matic mode or from the HMI manual
control keys. When the slide switch is
moved to the AUTO position, the ATS is
functioning immediately in the auto-
matic control mode.
—
Fig. 3.2 Above the selection of the operation modes
(Manual or Automatic) by the slide switch. Below
padlocking the automatic transfer switch; The handle
has to set standby slot (not in use), after that the slide
switch will move to the Locking mode automatically
and the switch is allowed to be padlocked.