CAT Roof Support PMC-R Shield Control System operation and maintenance Manual

Page 76

A Restart should be done when the state of the longwall has not changed since the time when SRB was canceled. This is usually the case when SRB has been canceled by a network break, Quickstop, or because SRB was switched off. SRB Restart

An SRB Restart can only be done if the SRB key’s LED is flashing and the P-key is flashing.

must be flashing!

must be flashing!

Press

to see

SRB FACE AUTOMATION To restart, press (P).

At this point, the operator can choose to do an SRB Restart or Newstart. Just because a Restart is allowed does not prevent a Newstart from being done. If a Newstart is desired, the keystrokes described in the Newstart section should be followed. To continue with the SRB Restart, press the P-key as follows: Press

to see

WARNING! SRB STARTED!

When the Restart is selected, all shields in the SRB Area (defined by parameters "Beginning Shield" and "Ending Shield") will "notice-beep" and will show the SRB Start Warning display message.

Parameters "Beginning Shield” “Ending Shield”

When SRB is active, the 9-key’s led will be lit solid.

Entering a Manual Position A new manual position can only be entered if the Star key” is flashing. It will only flash on 6 shields ahead of the existing position until the turn point is reached. Then it will flash on 6 shields in both directions so that the position can be moved in the opposite direction.

© Caterpillar

68

Manual Position Change

must be flashing!


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