Yaskawa E7B Drive Bypass System - Manual (Page 25)

Yaskawa Electric America, Inc.
Installation Guide IG.E7B.02 Rev: 04-11
Date: 11-1-04 Page 23 of 46
Bypass Motor OL Indicator
Safeties Open Status Indicator
Drive Fault Indicator
Smoke Purge Status Indicator
Table 1.21 Motor OL Indicator
Indicator Status Description
On (Red)
The motor overload (S10 on schematic E7B-10) has tripped OFF de-
energizing both the Drive and Bypass Circuits.
Off The motor overload (S10) is satisfied.
Table 1.22 Safeties Open Indicator
Indicator Status Description
On (Red)
The NC “motor safety circuit” connected to terminals TB1-1 and TB1-9
has an open circuit condition.
Off The NC “motor safety circuit” is satisfied or this function is disabled by
DIP switch S2-7.
Table 1.23 Drive Fault Indicator
Indicator Status Description
On (Red) The Drive has tripped OFF due to an internal Drive fault.
Off The Drive is ready for operation, or operating normally.
Table 1.24 Smoke Purge Indicator
Indicator Status Description
On (Amber)
The Smoke Purge function has been activated, the building fire control
system has closed a contact between terminals TB1-5 and TB1-9.
Off Smoke Purge is not active, the Drive & Bypass are operating normally.