Construction, agricultural, mining and municipal machines work in mud, water, dust and constant vibration, often on 24 V. Hardwire PDMs replace the fuses and relays on these machines with a sealed solid state unit that's set up in software and connected to the machine's controller over CAN.
Off-Highway
Solid state 12/24 V power distribution for construction, agricultural, mining and municipal machines: sealed, CAN connected and set up in software.
Construction
- Excavators
- Skid loaders
- Telehandlers
- Cranes
- Dump trucks
- Concrete mixers
Agriculture
- Tractors
- Harvesters
- Sprayers
- Utility vehicles
Mining and quarrying
- Mining vehicles
- Track-driven drills
Municipal
- Bin lorries
- Road sweepers
- Snow ploughs
- Tarmac vehicles
Built for the conditions
- IP67 sealed against water and dust, for washdown and wet sites.
- Solid state switching, with no relay contacts to shake loose or corrode.
- Works from -55 °C to 90 °C.
- Runs on 12 V and 24 V systems (4 to 32 V).
- Every output is protected against overcurrent, overtemperature, load dump and reverse polarity.
Controlling the machine's loads
- Work lights, beacons, wipers, pumps, fans, solenoid valves and heaters, each on its own protected output.
- PWM from 100 Hz to 1000 Hz on each output, with soft start, for lamps, fans and pumps.
- Turn-on delays and stay-on times, for example to run a cooling fan after shutdown.
- Per-output thermal limits, so non-critical loads shut down first when things get hot.
Safety and shutdown
- A global cut-off turns every output off at once, for example on an emergency stop or low voltage.
- The PDM's built-in IMU can detect a rollover or an impact and trigger the cut-off automatically.
Connecting to the machine's controller
- CAN connects the PDM to the machine's ECU or controller, so the controller can switch loads and read back their status.
- A built-in data stream reports PDM data in standard or J1939 format.
- DBC import and export set up the messages.
Variants and production
- One PDM can cover several machine variants: the hardware stays the same, and the differences live in the configuration.
- Configurations can be password protected so they can't be changed in the field.
- Live data, trip counts and stored statistics help find a fault on a machine that's come back from a site.
See power distribution for vehicle and equipment builders for more on building in volume.
Which PDM
- PDM28: 28 outputs, 200 A combined, machined aluminium enclosure, two CAN buses for your devices. See the PDM28.
- PDM15/25/35 V2: 15, 25 or 35 outputs, 120 A combined, E-marked. See the PDM15/25/35 V2.
New to PDMs? See how a PDM replaces fuses and relays.
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