Yaskawa E7B Drive Bypass System - Manual (Page 24)

Yaskawa Electric America, Inc.
Installation Guide IG.E7B.02 Rev: 04-11
Date: 11-1-04 Page 22 of 46
Control Panel Indicator Lights (LEDs)
Control Power Status Indicator
Drive Run Indicator
Bypass Run Indicator
Table 1.18 Control Power Indicator
Indicator Status Condition
On (Green)
3
Phase Power is applied to the Bypass unit and the control power
transformer is functioning.
Off
3
Phase Power is disconnected from the Bypass unit or a control
power transformer fuse has cleared.
Table 1.19 Drive Run Indicator
Indicator Status Condition
On (Green)
The Drive has been given a run command in HAND or AUTO mode
and the Bypass circuit is de-energized.
Off
The Drive has no run command in either the HAND or AUTO
modes. The unit may be operating in Bypass mode.
Table 1.20 Bypass Run Indicator
Indicator Status Description
On (Amber)
The Bypass has been given a run command in the HAND or AUTO
mode.
Or, the operation has been remotely transferred to Bypass using the
“Remote Transfer to Bypass” feature via a BAS contact closure at
terminals TB1-4 and TB1-9.
Or, the operation has been automatically transferred to Bypass after a
Drive fault condition via the DIP switch selectable “Auto Transfer to
Bypass” feature (S2-1).
Or, the operation has been transferred to Bypass using the “Smoke
Purge” feature via a contact closure at terminals TB1-5 and TB1-9.
The motor is running at full speed across-the-line and the Drive is
disconnected from the motor.
Off
The Bypass has no run command in either the HAND or AUTO modes.
The unit may be operating in Drive mode.