Xylem HYDROVAR HV 4.150 / 4.185 / 4.220 - Manual (Page 41)

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• Switching between two different required values
External switching between two connected required value signals (e.g.: between voltage
and current signal input) by closing digital input 1 (X3/9-10).
In ACTUATOR mode it is possible to switch between two different frequencies by the digital
inputs. The connected input signals (current or voltage) are proportional to the frequency.
How to program see SUBMENU REQUIRED VALUES [0800].
• Actual value – frequency indicator
e.g. to display the actual motor frequency
How to program see SUBMENU OUTPUTS [0700].
Possible connections:
Analogue output 1 (0-10V): X3/20
Analogue output 2 (4-20mA): X3/21
Digital Input 1
Required value 1
- external current signal
Required value 2
- external voltage signal