Schwing CPC3 User Manual

SCC Fault Isolation Manual 6/03/2020
Page 1 of 11 Rev. 01 9/20/2021
Schwing CPC3 Fault Isolation Manual
General Information
This manual will give a brief overview of each component of the system as well as basic steps to troubleshooting. This manual will not list truck specific components or wiring as those change for every vehicle type.
CPC3 is a drop-in replacement of the previous CPC systems. CPC3 system is an upgraded system for C32, CPC and CPC2, as well as all the variations and revisions of each one. Due to this, CPC3 may vary depending on what the original system was and how it
was changed over the years and what options were originally installed.
If you have a problem with this system, please email/call Schwing Service Techs, who will email the Electrical Engineering Team with what the problem was and the fix for it. This allows us to evaluate what caused the issue and update our procedures as well
as this troubleshooting guide.
This manual is not 100% and is only meant to give general steps on how to troubleshoot the system. As more issues arise and data is given to the Electrical Engineers, we will continually update this document to provide as many options as possible.
System Overview:
Functions:
• All C32, CPC and CPC2 functions that the unit had previously.
• Shows PTO, Pump and Boom Hours
• Easy Troubleshooting screens
• Maintenance Switch – Gives constant power to the Dump Valves
• Easy Teach mode operation
98455320
Schematic CPC3
98458772
Full Panel Assembly
98391422
PLC
98465074
PDM
98395784
2.8” Display
98455321
Rear Keypad
98463187
Local/Remote Switch Assembly
98457837
Panel Harness
98457028
I/O-E Harness
98465743
Scanreco Transmitter
98461655
Scanreco Receiver
98465556
Oil Temp Harness
98462248
Oil Temp Sensor
98462245
Oil Pressure Sensor
98465557
Area Lights Jumper (Main Connector)
Common SAI Numbers:

Schwing CPC3 Specifications

General

Brand	Schwing
Model	CPC3
Category	Industrial Equipment
Language	English

Summary

General Information

System Overview

Primary PLC

Primary PLC Description and Function

Details the PLC as the system's brain, controlling inputs and outputs, and its IP67 rating.

PLC LED Status Indicators

Explains the meaning of LED colors (Off, Yellow, Green, Red) for system status.

2.8" Display

Display Navigation and Views

Covers display features like Homepage, Menu Screen, Proportional Control Settings, and various screen views.

Power Distribution Module (PDM)

Keypad Operation

Maintenance Switch

Scanreco Radio

Teach Mode Operation

Teach Mode Procedure

Step-by-step guide for calibrating joysticks, adjusting settings, and saving configurations.

Proportional Settings Adjustment

Details on adjusting min/max values for boom functions and stroke limiters.

Determine PLC Version

PLC Version Identification Methods

Explains how to find the PLC version using the display or keypad.

Fault Isolation Manual

Troubleshooting Common Issues

Index of common problems with references to specific troubleshooting pages.

Troubleshooting: Display Does Not Turn On

Troubleshooting: Primary PLC Does Not Turn On

Troubleshooting: Throttle Control Does Not Work

Troubleshooting: Oil Cooler Does Not Turn On

Troubleshooting: Slew Limits Do Not Work

Troubleshooting: Fuse F9 Blows in Maintenance Mode

Troubleshooting: Stroke Counter and Strokes/Min Do Not Count

Troubleshooting: Work Lights Do Not Work

Troubleshooting: Hopper Light Does Not Work

Troubleshooting: System Does Not Turn On

Troubleshooting: Radio Display Shows 'NO CAN BUS MESSAGES'

Troubleshooting: Radio Display Has 'E' Indicator

Troubleshooting: 'No Comms HMI<>PLC'

Troubleshooting: '[Boom/Remote/Rear] E-stop Error'