Yaskawa E7L Drive Bypass - Manual (Page 254)

Communications D - 2
E7L and Serial Communication
The H/O/A selector keys must be in the AUTO position if serial communication is to be used for E7L run, stop or speed
control.
E7L serial communication may be used for any or all of the following monitoring and control functions:
Monitor - Drive Parameters
Control - Drive Auto Run/Stop
Bypass Auto Run/Stop
Drive Auto Speed Command
Drive Auto PI Setpoint
If DIP switch S2-2 is set to power-up the E7L in the OFF mode (the factory default) and a serial communication run command
exists, then a DNE (Drive Not Enabled) alarm will be displayed when the unit is first powered.
Pressing HAND or AUTO will eliminate the alarm. Pressing Reset or Menu will temporarily eliminate the alarm display and
allow the user to continue with programming the Drive parameters.