diff --git a/script/Marco/power-supply.py b/script/Marco/power-supply.py
index f7ac36d..4ca3724 100644
--- a/script/Marco/power-supply.py
+++ b/script/Marco/power-supply.py
@@ -20,7 +20,7 @@ ActualIA = Channel('PO2DV-NCS-VHQ1:Actual-IA', type = 'd')
 
 #set voltage to 0
 print 'Ramping down power supply to 0V'
-caput('PO2DV-NCS-VHQ1:Set-VA', '0')
+SetVA.put(0.0, timeout=None)
 
 #wait up to 2 minutes for voltage to be ~0
 for setpoint1 in frange(0.0, 120.0, 1.0, True):
@@ -32,7 +32,7 @@ for setpoint1 in frange(0.0, 120.0, 1.0, True):
 #Dimension 1
 #LinearPositioner SetVA
 print 'Ramping up power supply'
-for setpoint1 in frange(0.0, 80.0, 10.0, True):
+for setpoint1 in frange(0.0, 50.0, 10.0, True): #?????????????????? What is the relationship between this FOR loop and the ManualScan?
     if setpoint1 > 50.0 or setpoint1 < 0.0:
         break
     SetVA.put(setpoint1, timeout=None) # TODO: Set appropriate timeout