Basic Documentation

Page 8 of 9 Siemens Building Technologies, Inc.
Document No. A6V10431169
• User selectable essential service shall be provided that allows a contact closure to operate the motor at full speed,
ignoring all calls to stop.
• Contactors shall be interlocked to ensure that both the drive output and bypass contactors do not close
simultaneously.
• Two safety inputs shall be available for customer connecting. If either of these inputs opens, the electronic bypass
will not operate the motor in bypass or drive mode. These inputs are typically used for such things as fire alarm
and freeze stat.