The SPS101 is supplied with 24 V via the barrel connector (grey) or via the 2 position terminal block (green).
Turn the switch on (pink). The PWGD LED lights up when the board is powered.
Terminal block connections
+VCC1: 9 V to 15 V output, adjustable with the +VCC1 trimmer
+VCC2: 3 V to 6 V output for SPS101 / 11 V to 20 V output for SPS101-HV, adjustable with the +VCC2 trimmer
+VCC3: 3 V to 9 V output, adjustable with the +VCC3 trimmer
-VCC4: -9 V to -3 V output, adjustable with the -VCC4 trimmer