User Manual
TRAIN CHIEF® II LRCS W/ Lightweight OCU-BT – OPERATORS MANUAL
95-00-0-062, Rev 08 1-1 Control Chief Corporation
1 INTRODUCTION / SAFETY
1.1 Introduction
This Owner’s Manual provides operating and troubleshooting information for the installer and end
user of the Train Chief® II Locomotive Remote Control System (LRCS) with a Lightweight
Operator Control Unit (OCU) Brake & Throttle variant (BT).
The Train Chief® II LRCS has been designed as a permanently installed (“fixed”) system, directly
interfaced to the appropriate locomotive electrical and pneumatic controls. The system consists of
the following main components: (1) - the receiver / controller unit, (2) - the wireless remote-control
radio Operator Control Unit (OCU), (3) - the installation kit.
1.2 Common Acronyms
CFR - Code of Federal Regulations RCL - Remote Control Locomotive
FRA - Federal Railroad Administration RCO - Remote Control Operator
LRCS - Locomotive Remote Control System RCU - Receiver Control Unit
OCU - Operator Control Unit RCT - Remote Control Transmitter
PTC - Positive Train Control RCR - Remote Control Receiver
PLC - Programmable Logic Controller
1.3 Receiver / Controller Unit
The receiver / controller unit (RCU) contains the main control electronics and pneumatic hardware
of the remote control system. This includes; the PLC controller (the Allen Bradley SLC 500), the
Control Chief Communicator® module and
Control Chief Watchdog module, analog
and discrete interface modules, pneumatic
proportional control valves, air regulation,
control relays, solenoid valves, and
pressure sensing devices.
The RCU interface to the locomotive
involves both electrical and pneumatic
connections. The electrical interface is
primarily accomplished through DC relay
contact closures, wiring into the existing
locomotive’s electrical control system. The
pneumatic interface typically involves
direct air service tie-ins using the
dedicated pneumatic control devices in the
RCU. A dedicated DC/DC converter and
line conditioning module are provided to
interface the locomotive’s existing DC
supply to the RCU.
Figure 1-1 – The Receiver / Controller Unit