St750 Cabinet Preparation; Site Suitability; Figure 23 - Dimming Transformer Tap Selection - Siemens ST750 General Handbook

Dimming
tap
positions

Figure 23 - Dimming Transformer Tap Selection

Once the hardware has been checked as above, it is recommended that a self-
test is run (see section 5.16) before leaving the service centre.

5.2 ST750 Cabinet preparation

The controller cabinets are normally delivered from the manufacturing department in
a fully assembled and tested state. However to aid installation, the internal
equipment has been designed to be readily removable. All of the electronics should
be removed from the cabinet if:
the controller cabinet cannot be made waterproof
-
the controller cabinet is un-powered and will suffer from condensation, moisture
-
ingress and animal/insect infestation.
- there is a risk of the equipment being damaged by the contractor.
the controller cabinet will be left un-powered for a prolonged period.
-

5.3 Site suitability

The ST750 controller cabinet is installed to suit local conditions, but subject to the
following limitations:
(i) The position of the controller cabinet is as shown on the relevant site plan,
STS.
(ii) No part of the Cabinet is less than 457mm (18 inches) from the kerbside
unless agreed with the customer.
When it is necessary to site the controller cabinet less than 2 metres from the
outer edge of the kerb, the access panels should not open toward the
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ST750 G H
ENERAL ANDBOOK
Issue 6