Xylem IM098 AQUAVAR Model 56 Controller - Manual (Page 33)

Mode Select with buttons and between:
Multicontroller ➔ sequence control for max. 4
pumps. Controller ➔ pressure control for a
single pump. Actuator ➔ external frequency
setting. If only one AQUAVAR Model 56 Controller
pump is in operation, set Controller.
If more than one AQUAVAR Model 56 Controller
pumps are working together via the RS485-interface,
the Multi-controller must be selected.
The application Actuator is only used if you
have an external controller and the AQUAVAR
Model 56 Controller works like a standard
frequency converter (external frequency signal
0,5-4,5 VDC to the terminals X2/1 and 2).
Control Response Normal Speed is increased
with falling actual value signals (e.g.: Control at
constant output pressure). Inverse Speed is
reduced with falling actual value signal,
(e.g.: Control from falling suction pressure or at
constant level).
Dimension Unit Here you could choose your
favorite dimension ( or ). psi, Bar, or %.
Submenu Inverter To enter this menu you have
to press the key, to leave the menu, press
the ➔ key longer than 3 sec.
Maximum Frequency Possible setting
between min. 40 and max. 60 Hz. Settings of
10% above nominal frequency cause 33%
more power consumption!
Minimum Frequency Here you can set
the minimum frequency. ATTENTION: If f
min
> 0
is set, the pump will not stop in the
normal mode. It will keep running with the set
minimum frequency!! Possibility of
overheating of the Pump!!!
Operator Custom Features and Displays
28
➔
➔
MIN. FREQUENCY
0.0 Hz
MODE
CONTROLLER
REGULATION MODE
NORMAL
SUBMENU
INVERTER
MAX. FREQUENCY
60 Hz
DIMENSION UNIT
PSI
➔
➔
➔