Hydrovar Pump Controller Installation & Operation Manual

Programming
0100 0100 SUBMENU BASIC
SETTINGS
0105
0105 MODE
Controller
Select the operating mode
Possible settings: Controller, Cascade Relay, Cascade Serial, Cascade Synchron, Actuator
Controller (Default Setting):
Select this mode when only one HYDROVAR Master/Single Drive is used and there is no connection to any
other HYDROVAR via RS-485 interface.
Cascade Serial:
S
Selected if multiple HYDROVAR controlled pumps operate together via the RS-485 interface.
The standard application for this mode is a multi-pump system with up to 8 pumps, each controlled by a
HYDROVAR Master Drive or a combination of Master and Basic Drives. Advantages: reliability, lead/lag for
balanced usage and wear and tear, automatic alternation in the event of a drive failure (duty standby).
Cascade Synchron:
S
The Synchronous Controller mode is similar to cascade serial mode. The difference is that all pumps in the
multi pump system run at the same frequency.
Advantages: In the synchronous mode the pumps can operate in a better efficiency range and the system
may provide additional energy savings compared to standard Cascade Serial mode.
Actuator: (For single pump operation only!)
Actuator mode is used if a fixed speed setting is required or an external speed signal is connected to control
the speed of the drive.
In this mode, the HYDROVAR does not control the set value but runs the connected motor at a frequency
proportional to the input signal from the analogue input, or is programmed on the HYDROVAR. The following
input signals can be used:
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) 4-20mA 0 - MAX.FREQ.[0245]
0-20mA 0 - MAX.FREQ.[0245]
X3/23: Current signal input (Required value 2) 4-20mA 0 - MAX.FREQ.[0245]
45
0-20mA 0 - MAX. FREQ. [0245]
• Manual switching between the analogue inputs can be controlled by the corresponding digital inputs.
• The frequency varies along the programmed Ramps 1 (accelerating) and 2 (decelerating). The functions
thermal protection and external ON/OFF remain active.
• The functions “External ON/OFF”, “Motor Overheat”, “Lack of water” and all other internal protections
still work.