WEDGE CONTROLLER The WEDGE is attached to the back of the control panel.

WEDGE CONTROLLER WEDGE Controller is the heart of the machine monitor and control system. It provides data collection, alarming and control functions for compressor operations. It is an Intel micro-controller based unit with analog and digital inputs and outputs.

WEDGE CONTROLLER First function of the WEDGE is to scan all analog and digital inputs at a fixed interval. The inputs are scanned every 50 milliseconds. The values are then compared against min. and max. values and an ALERT or SHUTDOWN is issued. Second function to monitor discharge press., and varies engine speed to maintain air press. at desired setpoint. Third function to retrieve diagnostic info from the engine.

WEDGE CONTROLLER There are two types of temperature sensors, RTD’S and Thermistors. Both of these devices exhibit a change in resistance as the temperature changes. This resistance change causes an input voltage change to the WEDGE Controller Input and is interpreted as a temperature change.

Wedge to Engine Controller

Wedge to Engine Controller

Wedge Controller

Engine Controller Cummins ECM Location

Wedge display units available Wedge can display the following units; Deg F, PSI will be displayed as ‘PSI’ Deg C, Bars will be displayed as ‘Bar’ Deg C, Kg/cm2 will be displayed as ‘H9C’ DegC, Kpa will be displayed as ‘ HPA’ NOTE: To set refer to the operators manual.

Wedge display identification Number Parameter 2 RPM F/W sensor 3 RPM Filtered 4 Reg system pressure (PSI) 5 Sep tank pressure (PSI) 6 Discharge temperature (F) 7 Sep tank temperature (F) 8 Hz (throttle output) 9 Machine type ** ** 1 = Cummins XHP Viking, 2 = CAT EMU LP, 3 = CAT EMU HP, 4 = XHP CAT Viking, 5 = Cummins EMU LP, 6 = Cummins EMU HP, 7 = P426 Deere, 8 = WW600 Deere

Wedge display identification Number Parameter 10 Engine coolant temp (F) 11 Engine oil temp (F) 12 Engine oil pressure (PSI) 13 Intake Manifold temp (F) 14 RPM from CAN 15 Fault code list 16 Throttle Position 17 Boost Pressure 18 Engine Hours 19 Load @ Speed

WEDGE Id RESISTOR Resistor Menu Machine ID Resistor ‘R1’

Alert / Shutdown Codes

PDA Service Tool

PDA SERVICE MODULE PDA SERVICE MODULE PALM PILOT Application: Large Compressors Purpose: Service tool plug-in module for PDA device Required for servicing compressor/controller Features: Extract shut down / alarm history Read controller fault codes Read/capture SAE J1939 engine data Down load controller software PLUG IN MODULE Cable connector

MACHINE PARAMETER INTERROGATION SERVICE OPTIONS INTEROGATION TOOLS

General Machine Wiring Schematic Control Panel Wiring Schematic Wiring Diagram - Emu General General Machine Wiring Schematic Control Panel Wiring Schematic Cummins Engine Schematic

Wiring Diagram - Emu General

Wiring Diagram - Emu General

Index ‘1’….

Index ‘2’….

CONNECTOR P1 -WEDGE

CONNECTOR P4 - CONT. PANEL

CONNECTOR P3 - OEM

CONNECTOR P2 - ECM

CONNECTOR J6

CONNECTOR R5

CONNECTOR P10 Note If connection problem error code 71 will be displayed on wedge controller - (Can Bus error)

CONNECTOR P7 - RAD LEVEL

FUSE BOX LOCATION Fuse box

LOAD SELONOID LOAD SELONOID & VALVE

UNLOADER COMPRESSOR B2 Unloader air compressor

CONNECTOR U2 - RAD LEVEL SW

WW 226mm AIREND - OIL PRESSURE SWITCH Airend Oil Pressure Switch ‘S8’

WEDGE Id RESISTOR Resistor Menu Grey White Machine ID Resistor ‘R1’

‘R7’ CAN TERMINATOR

WIRING DIAGRAM -CONTROL PANEL

WIRING DIAGRAM -CUMMINS ENGINE