Alpha Technologies GMX-915 - Manual (Page 27)

27 017-932-B0-002, Rev. B
4.0 Configuration
4.1 Micro Board Setup
The Micro Board comes factory set, but the Micro Board switches are accessible should a
configuration change be necessary. Setup details are included in this manual as an aid to
troubleshooting, and as a reference to verify configuration. Only qualified technicians should
perform reconfiguration. To access the Micro Board, remove the eight front panel Phillips
screws indicated in Fig -1.
Input Voltage (SW1-1): Factory set to order. Never change this setting.
Frequency (SW1-2): Factory set to match the ferroresonant transformer operating frequency
of either 60Hz or 50Hz. This setting should never be changed.
Output Current Rating (SW1-3 and SW1-4): Factory set. Output Current Rating is set to
match the model of the power supply. Never change this setting.
Fig. -1, Micro Board DIP Switch Settings
OFF ON
Vin, SW1-1 225V 115V
Freq, SW1-2 60Hz 50Hz
Dip Switch Location
Back of front panel
Iout 15A 22A NA NA
SW1-3 OFF ON OFF ON
SW1- OFF ON ON OFF