36
29 FUSE PROTECTION
The INTELLI+ power supply system includes a transformer and a number of fuses.
Primary: 6.3x32 mm - 0.5 A - quick-action fuse (located on the transformer).
Secondary: Internal circuits protected by automatic cut-out (no user action needed) 24V auxiliary
power supply on terminal protected by automatic cut-out (no user action needed)
30
USING IN SEPARATED BOX
INTELLI+ can be provided in separated box to be removed from the actuato up to 50 meters. BER-
NARD CONTROLS provides weather proof boxes with two weather proof connection boxes: one to
be used by the customer, the other to be used to connect INTELLI+ to the actuator.
Explosion proof version is also available.
To plan a power wire and a control wire between the actuator and the box. The control wire must
be armoured. Check the wiring before powering up.
The commissioning is the same as the integrated INTELLI+.
31 MAINTENANCE
ST actuators have life-long lubrication and there need no specific maintenance.
However, the condition of the stem and the stem nut should be checked periodically to ensure
that they are clean and properly lubricated.
We recommend establishing a regular programme of test movements on motor drive units which
are rarely used.
In the case of the actuator with the battery option
Depending on the actuator configuration, a «Low Battery» message appears on the display
or remotely when the battery is too low.
For the explosion proof versions, you must replace the batteries by this type of battery:
2 batteries OMNICEL ER14505HD Lithium Thionyl Chloride (Li-SOCl2) type.
For the non-explosion proof versions, you should replace the batteries by the battery type shown
above or choose an other type with this requirement: AA, 2.2Ah, 3.6V, 400mA, -40°/+85°C.
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