User's Manual

TRAIN CHIEF® II LRCS w/Lightweight OCU OWNER’S MANUAL
95-00-0-xxx Rev 000 6-4 Control Chief Corporation
7. Independent Brake Selector:
Six position selector allows you to apply independent locomotive brakes to achieve the desired
stopping power.
Selectable positions are:
• Release (0 psi): this is the normal operating position when operating in power
mode (Throttle positions 1-8). (Note RELEASE selection is indicated when all
Independent Brake LEDs are off.)
• B1: Applies 1/5 of the available independent brake pressure to the brake
cylinders. Throttle selections T1 to T8 are allowed.
• B2: Applies 2/5 of the available independent brake pressure to the brake
cylinders. Throttle selections T1 to T8 are allowed.
• B3: Applies 3/5 of the available independent brake pressure to the brake
cylinders. Throttle selections T1 to T8 are allowed.
• B4: Applies 4/5 of the available independent brake pressure to the brake
cylinders. When brake pressure reaches 20 PSI the throttle is limited to T4. See
note.
• FULL: Applies total available independent brake pressure to the brake cylinders.
When brake pressure reaches 20 PSI the throttle is limited to T4. See note.
NOTE: The parameters used to establish thresholds for limiting throttle for a given brake
pressure can be adjusted per owners’ operating rules and requirements.
8. Internal Tilt Switch:
Located behind the keypad is an internal tilt switch or sensing device. If the transmitter is tilted
in any axis beyond 60-degress of upright for more than the preprogrammed tilt timeout setting
(typically 5 seconds), a tilt alarm becomes active. The tilt alarm feature is described in more
detail in Chapter 4.
9. Reset (optionally Reset/Bail):
The pushbutton located at the top left hand corner of the OCU provides an Alert reset function:
1. It resets the Alert warning. See page 4-9.
2. It instructs the RCU to allow a brake release when the operator moves the Throttle selector
out of the HALT position.
CAUTION:
Unless the Reset pushbutton is released, an Alert Timeout error will occur
and the system will command a Full-Application Locomotive Stop.
This pushbutton can also perform the optional dual function of RESET / BAIL. Alert reset
functions are same as above. The BAIL function allows the independent brakes to be released
while the train brake remains applied. For the BAIL function, when the button is pressed for
longer than 2 seconds the controller will bail off independent brake.