NOTE: Standing Notice 477 dated 26/02/2021 has now been CANCELLED and will be replaced by the following:
Coonamia Axle Counters
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Axle Counter Reset Procedure for 40T, 40AT, A35T, 42T and A36T
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Upon commissioning of the new Axle Counter Track Circuits at Coonamia, the following operating procedures will apply in the event of a requirement for an axle counter reset:
Overview
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Axle Counter control equipment will be housed in a concrete enclosure (FAdC location) adjacent to 17P location. An axle counter reset switch will be installed in a separate control box inside 17P Location for use by qualified Signal Maintainers in the event a local reset is required under the direction of the Network Controller.
Wauchope Road Level Crossing will now be initiated by axle counters (via 14 signal) from Pt Pirie. Failure of axle counter section 40T will not ring the crossing if 14 signal is not called (Reverse). However, if 14 signal is set (reverse) a failure at 40T will ring the crossing continuously until a reset is completed.
Remote Operation of Axle Counter Reset
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The reset process will reset all 5 axle counter track sections at the same time.
Once the TTM or Network Controller qualified on the West CTC board has approved and signed off on the axle counter reset form, The Network Controller can select the "A35-42T" Track Button followed by the Reset Button. The "Resetting" label will then display while the axle counters are reset.
Local Operation of Axle Counter Reset
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Local operation of the axle counter reset shall only be carried out when advised by the Network Controller. This will also mean that one or more of the axle counter Tracks will be displaying a red indication (due to an error or miscount).
When a reset is requested by the Network Controller, the qualified Signal Maintainer shall open the Reset Box and operate the reset switch as per the instructions on the panel - left position 1 for 1 second, then right position 2 for 1 second, then back to the centre normal position.
Once the axle counter reset has occurred, all five tracks should display a green indication. The qualified Signal Maintainer shall close the axle counter reset control box and advise Network Control.
Axle Counter Reset Switch Control Box
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The panel depicts the five axle counter track sections - 40T, 40AT, A35T, 42T and A36T.
Each track section has a red and green LED indicator.
The red LED indicates that the track section is occupied (or in an error or miscount state)
The green LED indicates that the track section is normal.
Beneath the track section is a three position switch. Centre position is normal, left position 1 and right position 2.
Beneath the three position switch is a red LED labelled Reset. The LED lights to acknowledge the reset command.
Axle Counter Reset Procedure for 31T, 27T, and 41T - Warnertown Road 2.776 km LX
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As referred to in Standing Train Notice 2394 / 2012 issued on 26/09/2012, the existing Axle Counter tracks over the Warnertown Level Crossing, located on the Port Augusta leg of the triangle, are not affected by these works.
Overview
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Existing Axle Counter control equipment for Warnertown Road 2.776 km Level Crossing is mounted in 27X Location Box located near the Level Crossing.
Local Operation of Axle Counter Reset
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Local operation of the axle counter reset shall only be carried out when advised by the Network Controller.
When a reset is requested by the Network Controller, the qualified Signal Maintainer shall momentarily operate the reset switch for the affected Track, located in 27X Location Box, and advise the Network controller when completed. There is no remote reset available for these Axle Counter Tracks.
Authorised by: Operations Interface SA/VIC, Interstate Network.
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