Command Mode- Automatic Operation
The pantographs can be operated automatically or manually when using the M.T.H.
DCS Digital Command System or DCC. The START UP function must be initiated for
the pantographs to operate in command mode. After the startup function has
completed, the pantographs will go through an orientation check. This will make sure
that the rear pantograph is raised and the front pantograph is lowered.
When the direction of the locomotive is reversed the front pantograph will rise, then
the rear pantograph will lower. This is to insure that at least one of the pantographs is
in contact with the cantenary at all times.
Every time the direction button is pushed, the pantographs will alternately rise and
lower.
DCS Command Mode- Manual Operation
Using the DCS handheld, each pantograph can be raised and lowered individually by
pressing appropriate softkeys (buttons S1 through S5).
Premier E94 Crocodile Electric Engine
5
Pantograph/Track Position Switch
Figure 6: Pantograph/Track Position Switch
Conventional Mode
When power is applied in conventional
mode the pantographs will go through
an orientation check. This will make sure
that the rear pantograph is raised and
the front pantograph is lowered.
When the direction of the locomotive is
reversed the front pantograph will rise,
then the rear pantograph will lower. This
is to insure that at least one of the
pantographs is in contact with the
cantenary at all times. This action takes
place in the neutral state. When the engine is moving, the trailing pantograph on the
engine should be up and the leading pantograph should be down.
The pantographs will alternately rise and lower with each direction change of the
locomotive.
The rear pantograph should open to its full height. The front pantograph should rise
slightly to unlatch, but remain collapsed.
Power Selection
The Automatic Operating Pantographs can be used to obtain power from an overhead
cantenary system. In order to obtain power from an operating overhead cantenary move
the selector switch from the track position to the pantograph position as shown in
figure 6.
