The bas interlock circuit at power up – Yaskawa E7B Drive Bypass System User Manual
Page 42
Yaskawa Electric America, Inc.
Installation Guide IG.E7B.02 Rev: 04-11
Date: 11-1-04 Page 40 of 46
The BAS Interlock Circuit at Power Up
When a Run command is received in HAND or AUTO mode, the E7B_ _ _T or E7B_ _ _Y will display a red
“Damper/Bas” LED in the “System Status” area of the front control panel. This condition will prevent Drive or Bypass
operation.
One of the following three items needs to be done prior to start-up:
1)
Install a “BAS Interlock Circuit” between TB1-3 and TB1-9 on PCB A2.
2)
Install a jumper between TB1-3 and TB1-9 on PCB A2. This method should be used if a “BAS Interlock Circuit”
will be added later in the installation.
3)
De-activate these terminals by moving DIP switch S2-8 to the ON position (toward the enclosure door). This
solution is only suggested if a “Safety Circuit” will never be applied to the drive system.