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ST43401N/ND, ST43402ND User’s Manual, Rev. B 43
Section 3. Operation
This section provides the information and instructions to operate the drive. It
is arranged as follows:
• LED indicators—locates and describes the switches and indicators used for
normal drive operation.
• Operating instructions—describes procedures for operating the drive.
LED indicators
Following initial checkout, the drive normally requires no attention from the
operator. Although power is usually left on, as the operator you should know
where the on/standby switch is located on the power supply. Also, you may
be asked to examine the LED indicators.
Two of the maintenance LEDs are located on the drive’s control board. The
third maintenance LED is located either on the control board or on an optional
bezel (if the bezel is installed). Figure 22 shows the LED indicators on
ST43401N/ND drives, and they are explained in Table 6. Figure 23 shows the
LED indicators on ST43402ND drives; they are explained in Table 7.