Project/ElectricalWorks/DB3aRework: Difference between revisions
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Objectives : |
Objectives : |
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* Bring the Emergency |
* Bring the Emergency Stop control into use for the 3-phase tools (as appropriate) |
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* Separate the 16A sockets for the Bandsaw and Welder onto individual circuits |
* Separate the 16A sockets for the [[tools/bandsaw|Bandsaw]] and [[Tools/EMP235ic|MIG Welder]] onto individual circuits |
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* Separate the Pillar Drill and Pedestal Grinder onto individual circuits |
* Separate the [[tools/pillardrill|Pillar Drill]] and [[tools/pedgrinder|Pedestal Grinder]] onto individual circuits |
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* Provide a new 16A socket for the Planer |
* Provide a new 16A socket for the [[Tools/AT260SPTPlanner|Planer-Thicknesser]] |
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* Provide capacity for a new 16A socket in future |
* Provide capacity for a new 16A socket in future |
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== Current State == |
== Current State == |
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The existing board is based on 2 |
The existing board is based on 2 35mm DIN rails, each of 250mm length. These are mounted on a removeable back plate. |
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Three 4-pole NC contactors are fitted, but only being used as junction blocks at present. |
Three 4-pole NC contactors are fitted, but only being used as junction blocks at present. |
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* Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable |
* Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable |
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* Install new earth block onto wall of DB3A. Bond cabinet and door to earth block. |
* Install new earth block onto wall of DB3A. Bond cabinet and door to earth block. |
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* Connect |
* Connect [[tools/metallathe|Metal Lathe]] wiring directly back to MCB 5L1/L2/L3 in Main board - 4-pole junction / 20A |
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* Install new 16A 3-phase RCBO's for |
* Install new 16A 3-phase RCBO's for [[tools/pillardrill|Pillar Drill]] and [[tools/pedgrinder|Pedestal Grinder]] |
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* Install new 16A 1-phase RCBO's for Welder, Planer |
* Install new 16A 1-phase RCBO's for [[Tools/EMP235ic|MIG Welder]], [[Tools/AT260SPTPlanner|Planer-Thicknesser]] and spare circuit |
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* Install new 6-way DIN rail terminal block for neutral connections |
* Install new 6-way DIN rail terminal block for neutral connections |
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* Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections |
* Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections |
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* Pull new 2.5mm cable through for Welder socket. Remove old wiring from shared 16A box. |
* Pull new 2.5mm cable through for [[Tools/EMP235ic|MIG Welder]] socket. Remove old wiring from shared 16A box. |
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* Install new 20mm conduit in ceiling to centre pillar. |
* Install new 20mm conduit in ceiling to centre pillar. |
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* Pull new 2.5mm cable through for Planer |
* Pull new 2.5mm cable through for [[Tools/AT260SPTPlanner|Planer-Thicknesser]] socket. Install new 16A surface socket on central pillar. |
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== Photos and Drawings == |
== Photos and Drawings == |
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File:DB3A Bottom right.jpg|Bottom right detail |
File:DB3A Bottom right.jpg|Bottom right detail |
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File:DB3A dimensions.jpg|DB3A dimensions |
File:DB3A dimensions.jpg|DB3A dimensions |
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File:DB3A |
File:DB3A new layout.jpg|Proposed new layout |
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File:Detail_db3a.jpg|Board DB3A - completed |
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File:DB3A label.jpg|Board DB3A internal label |
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</Gallery> |
</Gallery> |
Latest revision as of 11:04, 21 June 2021
Introduction[edit]
A project to re-work DB3A.
Objectives :
- Bring the Emergency Stop control into use for the 3-phase tools (as appropriate)
- Separate the 16A sockets for the Bandsaw and MIG Welder onto individual circuits
- Separate the Pillar Drill and Pedestal Grinder onto individual circuits
- Provide a new 16A socket for the Planer-Thicknesser
- Provide capacity for a new 16A socket in future
Current State[edit]
The existing board is based on 2 35mm DIN rails, each of 250mm length. These are mounted on a removeable back plate.
Three 4-pole NC contactors are fitted, but only being used as junction blocks at present.
The primary cable entry is via the trunking at the bottom of the box, with a single armoured cable entering on the top-right side.
Planned Work[edit]
- Test Emergency Stop contactor power is working and correct.
- Strip existing board
- Strip back armoured cable sheath to ~20mm from point of entry
- Move lower DIN rail down on baseplate to make room for wiring between DIN rails
- Install Schneider 63A 4-pole contactor, connected to E-Stop system
- Replace MCB 4L1/L2/L3 in Main Board with Schneider 32A Type-C breaker.
- Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable
- Install new earth block onto wall of DB3A. Bond cabinet and door to earth block.
- Connect Metal Lathe wiring directly back to MCB 5L1/L2/L3 in Main board - 4-pole junction / 20A
- Install new 16A 3-phase RCBO's for Pillar Drill and Pedestal Grinder
- Install new 16A 1-phase RCBO's for MIG Welder, Planer-Thicknesser and spare circuit
- Install new 6-way DIN rail terminal block for neutral connections
- Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections
- Pull new 2.5mm cable through for MIG Welder socket. Remove old wiring from shared 16A box.
- Install new 20mm conduit in ceiling to centre pillar.
- Pull new 2.5mm cable through for Planer-Thicknesser socket. Install new 16A surface socket on central pillar.
Photos and Drawings[edit]
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Overview
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Top section detail
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Bottom section detail
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Top left detail
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Top right detail
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Bottom left detail
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Bottom right detail
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DB3A dimensions
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Proposed new layout
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Board DB3A - completed
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Board DB3A internal label