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INTRODUCTION

18000 SERIVCE/MAINTENANCE MANUAL

1-26

Published 12-05-17, Control # 035-23

EPIC

CONTROL SYSTEM

CAN-Bus

See

Figure 1-20

for the following procedure.

The Model 18000 crane’s boom, load lines, swing, crawler
tracks, and accessory components are controlled
electronically with the EPIC (Electrical Processed
Independent Control) with Can-Bus technology. The 24 volt
can-bus system uses remote nodes that contain controllers.
The controllers communicate with node-1 (master) controller
by sending data packets over a two-wire bus line. The data
packets are tagged with addresses that identify system
components. Node-1 controller compares these input data
packet signals with programming directives and data
information. Node-1 controller then provides appropriate
output commands to other remote nodes.

Each node controller receives and sends both analog and
digital input/output voltages. Analog input/output voltages
are either AC or DC variable voltages or currents that are in a
pulse train. Digital input/output voltages are 24 volt nominal
voltages that are either 0 =

off

or 1 =

Node controllers use the binary system. The binary system is
based on binary multiples of two and only recognizes 0 =

off

or 1 =

. Basic counts of this system are exponents of the

number two. These exponents are formed in words, called
bytes, of eight numbers each. The eight numbers are 1, 2, 4,
8, 16, 32, 64, and 128 for an 8-bit controller or a combination
of up to 255 bytes. These bytes represent electrical inputs/
outputs to node-1 controller. See Crane Diagnostics in
Section 10 of the Service/Maintenance Manual.

Universal nodes on the boom monitor the boom, luffing jib, or
fixed jib components and input the information to node-1
controller. Boom components include angle sensors, block-
up limits, and load pin sensors. The mast angle position is
also monitored.

The system nodes controllers are listed below:

Node-0 – Engine

Node-1 – Master (Front Console)

Node-2 – Handles and Controls

Node-3 – Drum 3, Travel, and Pressure Senders

Node-4 – Accessory Components and Mast

Node-5 – Alarms, Limits, Boom, and Pump Controls

Node-6 – Drums 2, 4, 5, and Adapter Frame Pins

Node-7 – Swing and Auto Lube

Node-8 – Drum 1 and Drum 6

Node-9 – MAX-ER (Optional)

Boom Node-20 – Boom

Digital Display

See

Figure 1-20

for the following procedure.

The digital display on front console shows operating
conditions, operating limits, and system faults monitored by
node controllers. Access information by scrolling to the
desired screen with scroll switch. System messages are
shown in Tables in Digital Display Readings in Section 10 of
the Service/Maintenance Manual.

Rated Capacity Indicator/Limiter (RCL)

The RCL system is part of the EPIC can bus system. Load
charts are specific for each crane model. For complete
information see Rated Capacity Indicator/Limiter manual.

NODE 2

NODE 3

NODE 4

DRUM

PCP

REDUCER

GEAR

SWITCHES

LIMIT

SWITCHES

HANDLES

CONTROL