ST950S Plus+ Installation and Commissioning Manual
Important:
The key lock should not be operated unless the screw locks are tight, i.e. Unlock the case
before undoing the screw lock and only lock the case after tightening the screw locks.
6.2. Checking Site Suitability
The controller outer case is installed to suit local conditions, but subject to the following limitations:
(i) The position of the controller is as shown on the relevant site-to-scale drawing, (STS)
(ii) No part of the controller is less than 457mm (18 inches) from the kerbside unless agreed with the
customer.
When it is necessary to site the controller less than 2 metres from the outer edge of the kerb, the
access doors and panels should not open over or toward the carriageway. Where no pedestrian guard
rails are fitted, then a clearance of at least 600mm shall be left between the outer case and kerb edge
so that guard rails may be installed at a later date without the need to disturb the controller installation.
(iii) The controller door(s) should be easily accessible and not extend over the roadway or obstruct the
footpath when opened. The door describes an arc of approx. 710mm radius from the left-hand front
corner. Note that the controller door swings open through 180°.
(iv) Any person having control over the junction, whether manual control or stimulating some other
system interface to test the controller's response, MUST have a good view of the intersection.
(v) When the controller is to be located on unmade ground (e.g. a grass verge) it is recommended
that paving slabs or a concrete standing be provided at ground level under all access doors and
panels. The hard standing shall extend a minimum distance of 900mm away from the main doors,
extending the full width of the case, and at least 800mm away from the side of the case with a flap,
again extending the full width of that side.
Customers may specify particular requirements.
The door of the controller must have ground clearance of at least 30mm over its whole opening arc.
6.3. Cabinet Installation - Summary
Prior to any installation works, firstly make sure that the cabinet has been delivered to site without
external physical damage.
The electronics should be removed from the controller and stored separately if:
•
The controller cabinet cannot be made waterproof.
•
The cabinet will be un-powered for any significant period of time and may suffer from
condensation, moisture ingress and/or animal/insect infestation.
•
There is a risk of the cabinet being damaged on-site.
•
The cabinet will be left in an un-powered state for a prolonged period.
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