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5. Installation & Setup
Critical Fault Non Critical FaultPowerpack Status
5.2.5 Local Controls & External LCD Display
Actuators can be supplied with optional local controls and an
external backlit display.
Display
Removal of top cover assembly is required to adjust
configuration parameters and facilitate connection of power
and field wiring.
Selecting Local/Stop/Remote Operation
The Red and Black selector enables either Local or Remote
control operation, lockable in each position using a padlock
with a 6.5 mm hasp. When the selector is locked in the
Local or Remote position the Stop facility is still available. The
selector can also be locked in the Stop position to prevent
electrical operation by Local or Remote control.
Local Control
With the Red/Black selector set to the Local Control
(Anticlockwise) position the black selector can now be turned
to select Open or Close electrical operation.
Note the actuator can be configured for 'Push to Run' or
'Self Maintained' Open and Close operation when the
selector is operated.
Remote Control
Rotate the Red/Black selector to the Remote position
(Clockwise). This allows the Remote control signals to operate
the actuator. Local Stop can still be used by turning the Red/
Black selector anticlockwise.
5.2.6 Reserve Powerpack
The actuator can be fitted with an optional 'Reserve
Powerpack' consisting of super capacitors to allow the
actuator to carry out predetermined electrical operation on
power failure.
On power up the actuators require a charging period during
which time electrical operation will be inhibited. This could
take up to 3 minutes.
Note: Electrical operation is inhibited and the external LCD
backlight will flash ON/OFF during the charging period.
On loss of power supply the actuator will carry out its
designed fail to position. The LCD display will remain
illuminated and flashes Red and White alternatively until the
energy stored in the capacitors is depleted. This could take up
to 30 minutes.
Fig 5.5
Fig 5.6
Fig 5.7 Actuator
flashes Red and White
alternatively when power failure occurs
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