Saturday, May 11, 2013

Connecting the Controller up

I have been working on documenting how to connect up the controller, see INSTALLATION section above.

http://smartdcgenerator.blogspot.com/2000/01/installing-and-connections.html

 And here is a table I made as well:


Name
Grouping
Purpose
Connect to
Expected Voltage
Min Wire Size
Fuse
Note
BAT +
System Battery
Provides power to controller.  Also powers FIELD in V1 of controller PCB.
System Battery +
Up to 24v


14g
15A


VBat +

House Battery
Measures voltage in house battery
House Battery +
With appropriate configuration up to 48v.
18g, twisted pair
2A
Connect these wires AT the house battery as close to the battery terminals as allowed.
VBat -


House Battery –


BAT -

House Battery –

14g

Connecting BAT – to the House Battery Ground gives better stability in VBat measurements.
BATTERY Temp
Measure House Battery temperature
Battery Temperature probe

Cable

Typical place probe on – terminal of battery in middle of battery bank.

CSh +
Common Battery
Measured alternator current, as well as starter current to determine if engine has started.
+ terminal on Current Shunt (Terminal on BATTERIES side of shunt)

18g, twisted pair

System can be modified to support separate shunt for Alternator and Starter, by re-purposing EGT port.  Will require modification of controller code.
CSh  -

- terminal on current shunt



FLD
Alternator
Provides field voltage to control alternators.
F terminal on Alternator
PWM controlled – between 0v and FLD-DRIVE  voltage (Configurable to 48x)
14g

Use larger wire if Field currents in excess of 10A expected.

Note:  FLD-DRIVE and FLY-Fly are not used on V1 of controller board.  Instead these are internally connected to BAT + and BAT – (System battery)
FLD DRIVE
Allows selection of P-type or N-type alternators (along with board stuffing options – see Configuration)
System Battery + for HIGH DRIVE alternators, System Battery  - for LOW DRIVE alternators

14g
15A

(If connected to Battery +)
F-FLY

System Battery - for HIGH DRIVE alternators, System Battery  + for LOW DRIVE alternators

14g
STATOR
Determine RPMs of alternator (and hence engine).  Also used to lock-step voltage and current measurements with Stator.
Stator terminal on Alternator

16g
2A

ALT Temp
Measure Alternator temperature
Alternator Temperature probe 

Cable

Typically place probe on + terminal of alternator.

EGT -
EGT +

Engine
Determine EGT of engine.  Used to prevent overloading engine
EGT probe

EGT probe wires

Do not extend these wires, purchase probe w/ needed length.
START
Engage starter.  This will raise to System + voltage when starter is be engaged.

Starter solenoid
BAT + when active

 (See note re: V1 boards)
14g

Note that in V1 of controller, this is an ACTIVE LOW signal
FUEL P
Engage Fuel Pump
Fuel pump
BAT + when active
14g


GLOW
Engage Glow Plug
Glow Plug
BAT + when active
14g


Oil Low
Indicated to controller oil pressure is low.
Low Oil Sender
Sender should GROUND this line when oil pressure is low.
16g


RAW-W
Indicated to controller cooling water flow is low.
Water Flow Sender
Sender should GROUND this line when water flow is low.
16g


Th-CL
Engages Throttle Controller clutch

BAT + when active
14g


Th-UP
Increases Engine Speed

BAT + when active
14g


Th-DN
Decreases Engine Speed

BAT + when active
14g


ENGINE Temp
Measure engine coolant temperature
Engine coolant Temperature probe 

Cable


SEA WATER temp
Measures temperate of sea water pump, used to detect run-dry conditions
Sea Water Temperature probe

Cable


Exh-MIX
Measured temperature of exhaust mixer.  Use to detect failure in coolant water flow.
Exhaust mixer Temperature probe.

Cable

Typically this probe is attached to the sea water injection point on the exhaust system.

W-Mkr

Water maker
Engages Watermaker high pressure pump
Clutch on Water maker.
BAT + when active
14g

This can be reconfigured via #define statements in the source code to drive coolant co-gen pump instead.

R-GN
Local Control Switches
Request  starting of Generator mode
SPST-MOM switch to Ground to request generator

16g


R-WM
Request start of Watermaker mode
SPST-MOM switch to Ground to request Watermaker

16g


S-ALL
STOP ALL!  
Also provides safety interlock / override for remote control panel
SPST switch to ground to stop all, leave connected to Ground for safety interlock.

16g

If left on ground, ‘LOCKED OUT’ will appear on remote LCD display.

Remote
Remote
Wiring and Power to remote control panel
Remote Panel

CAT-5 cable


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