68ACS 400 User’s ManualGroup 11: Reference SelectReference commands can be given from the control panel or from two external locations. Theselection between the two external locations is made with parameter 1102 EXT 1/EXT 2 SEL. For moreinformation on control locations, refer to “Appendix A”, starting page 141.Code Description1101 KEYPAD REF SELSelection of active control panel reference in local control mode.1 = REF1 (Hz)Control panel reference is given in Hz.2 = REF2 (%)Control panel reference is given as a percentage (%).1102 EXT1/EXT2 SELSets the input used for selecting the external control location, or fixes it to EXT1 or EXT2. The externalcontrol location of both Start/Stop/Direction commands and reference is determined by this parameter.1...5 = DI1...DI5External control location 1 or 2 is selected according to the state of the selected digital input (DI1 ... DI5),where deactivated = EXT 1 and activated = EXT 2.6 = EXT 1External control location 1 ( EXT1) is selected. The control signal sources for EXT 1 are defined withparameter 1001 (Start/Stop/Direction commands) and parameter 1103 (reference).7 = EXT 2External control location 2 ( EXT2) is selected. The control signal sources for EXT 2 are defined withparameter 1002 (Start/Stop/Direction commands) and parameter 1106 (reference).8 = COMMExternal control location 1 or 2 is chosen through serial communication.