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12.12 Ramps
The ramps determine how quickly the pump can
accelerate and decelerate during start-stop or
setpoint changes.
You can set the following:
•
acceleration time, 0.1 to 300 seconds
•
deceleration time, 0.1 to 300 seconds.
The times apply to the acceleration from 0 rpm to
maximum (fixed) speed and the deceleration from
maximum (fixed) speed to 0 rpm, respectively.
At short deceleration times, the deceleration of the
pump may depend on load and inertia as there is no
possibility of actively braking the pump.
If the power supply is switched off, the deceleration
of the pump only depends on load and inertia.
Speed
Fixed
maximum
User-set
maximum
User-set
minimum
0
Fixed initial ramp
User-set ramp-up
Fig. 29
Ramp-up and Ramp-down
12.13 Alarm handling
The alarm handling determines how the pump must
react in case of a sensor failure.
Input
Alarm handling
Warning: no change of operation
Stop: an alarm is given, and the
pump stops
Min: an alarm is given, and the
"Analog
pump reduces speed to minimum
input 1"
Max: an alarm is given, and the
pump increases speed to maximum
User-defined speed: an alarm is
given, and the pump runs at a
speed set by the user
Time
Fixed final ramp
User-set ramp-down
12.14 ""Number" (Pump number)
You can allocate a unique number to the pump. This
makes it possible to distinguish between pumps in
connection with GENIbus communication.
12.15 "Radio communication"
(Enable/disable radio comm.)
You can set the radio communication to either
enabled or disabled. You can use this function in
areas where radio communication is not allowed.
IR communication remains active.
12.16 "Unit configuration" (Units)
In this menu, you can select between SI and US
units. The setting can be made generally for all
parameters, or you can customise for each
parameter.
In this menu, you can store the actual settings for
later use in the same pump or in other pumps of the
same type.
12.17 "Recall settings" (Recall stored
settings)
Grundfos GO Remote
In this menu, you can recall stored settings from a
number of previously stored settings that the pump
then uses.
12.17.1 "Undo"
In this display, you can undo all settings that have
been made with Grundfos GO Remote in the current
communication session. Once you have recalled
settings, you cannot undo.
12.18 "Pump name"
In this display, you can give the pump a name. In this
way, you can easily identify the pump when
connecting with Grundfos GO Remote.
23
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