Section 2. Controls And Indicators - Honeywell MSU0402 Manual

Section
2
Controls and Indicators
Primary power is controlled by the MAIN POWER circuit breaker located inside
the rear door of the unit. The controls and indicators on the control panel for the
MSU0402 and MSU0451 are shown in Figure 2-1.
A description of the function of each indicator and control follows:
START/STOP
This push button/indicator is used to start and stop spindle rotation. When lighted
(red), it indicates that power is applied to the spindle motor. Ifpressed when
lighted, it causes the spindle to come to a stop and the indicator light goes out.
READY
This indicator lights (green) when the spindle is rotating at proper speed, the
heads are loaded, and the unit is ready to accept commands.
CHECK
This push button/indicator lights (red) when a fault condition has occurred or the
air flow is insufficient. After correcting the problem, press the button to clear the
fault registers and reset the indicator.
OFFLINE
This indicator lights (white) when the unit is in the offline mode. The unit may be
placed offline by setting the OFFLINE switch on the maintenance panel behind
the rear door of the unit.
PROTECT
This push button/indicator is used to inhibit or enable write operations on the disk
pack. When the PROTECT indicator is lighted (yellow), pressing it will turn the
light off and enable write operations. When the PROTECT indicator is off,
pressing it will turn it on and inhibit write operations.
Controls and Indicators 2-1
AT71-03