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Actuator: (For single pump operation only!)
The Actuator mode has to be used if an external speed signal is connected and the
HYDROVAR is just used like a standard frequency converter.
In this case, the internal controller is shut off, so the HYDROVAR won’t control the set value
but it is responsible for running the connected motor at a frequency proportional to the
input signal connected to the analogue inputs:
X3/13: Voltage signal input (Required value 1) ⇒ 0 - 10V = 0 - MAX. FREQ. [0245]
X3/15: Voltage signal input (Required value 2) ⇒ 0 - 10V = 0 - MAX. FREQ. [0245]
X3/18: Current signal input (Required value 1) ⇒ 4-20 mA = 0 - MAX. FREQ. [0245]
0-20 mA = 0 - MAX. FREQ. [0245]
X3/23: Current signal input (Required value 2) ⇒ 4-20 mA = 0 - MAX. FREQ. [0245]
0-20 mA = 0 - MAX. FREQ. [0245]
• A manual switching between the analogue inputs is possible by using the corresponding
digital inputs.
• The frequency varies along the programmed Ramps 1 and 2. The functions thermal
protection and external ON/OFF remain still active.
• The functions “External ON/OFF”, “Motor Overheat”, “Lack of water” and all other
internal protections still work.
In the Actuator Mode it is also possible to work with a pre-selected frequency for a manual
control of the HYDROVAR. It is possible to set two different frequencies in the Submenu
REQUIRED VALUES [0800]. A changeover of these frequencies can be done with Parameter
SW REQ. VAL [0815].
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