Operation
9229 9947 176 0C
47
2013-03-28
The adapter (50.6) of the hand crank (50.) is designed in such a way that the hand
crank becomes uncoupled when the motor supply voltage returns.
Closing
Provided there is no lock-out due to a mechanical interlock, send the closing
command via the CLOSED pushbutton (53.) or the corresponding command
element until the vacuum circuit-breaker is closed and shows and signals the
CLOSED position.
Change of the position indicator (59.):
After switching on and possibly releasing the CLOSED pushbutton (53.), the closing
spring (62.) is immediately automatically charged by the motor and the indicator
"Closing spring charged" (55.) becomes visible.
Change of the spring state indicator (55.):
Opening
The opening spring (64) is charged during the closing operation.
To open, send the opening command via the OPEN pushbutton (54.) or the
corresponding command element until the vacuum circuit-breaker is open and
shows and signals the OPEN position.
Change of the position indicator (59.) after electrical opening:
The spring state indicator (55.) does not change.
Relaxing the closing spring
To relax the closing spring,
• the supply voltage must be deactivated
• the vacuum circuit-breaker must be closed manually (see “Closing” on page 47)
and then
• opened manually (see “Opening” on page 47).
OPEN
CLOSED
Charged
Relaxed
Charged
Note
If an undervoltage release 3AX1103… is fitted, it must be connected to control
voltage for switching operations (mechanical or electrical), as otherwise closing
is not possible.
CLOSED
OPEN
