3.7.3. Speed Up/Slow 
Terminals 29/32 = Speed up/Slow: .
Terminal 18 = Par. 5-10 [9] 
Start
(default)
Terminal 27 = Par. 5-12 [19] 
Freeze
reference
Terminal 29 = Par. 5-13 [21] 
Speed
up
Terminal 32 = Par. 5-14 [22] 
Slow
Note: Terminal 29 only in FC x02 (x=series
type).
3.7.4. Potentiometer Reference 
Voltage reference via a potentiometer:
Reference Source 1 = [1] 
Analog in-
put 53
 (default)
Terminal 53, Low Voltage = 0 Volt
Terminal 53, High Voltage = 10 Volt
Terminal 53, Low Ref./Feedback = 0
RPM
Terminal 53, High Ref./Feedback =
1500 RPM
Switch S201 = OFF (U)
3. How to Install
VLT
®
 HVAC DRIVE High Power
Instruction Manual
66
   MG.11.F1.22 - VLT
®
 is a registered Danfoss trademark.   
3