Table of Contents
Advertisement
en – Original instructions
P33
P34
P35
P36
P37
P38
P39
*
Depending on the type of pump used
34
Ramp Speed Min
s
Deceleration [2.0-
25.0]
Speed Min
Configuration [STP,
SMI]
Smin time [0-100]
s
%
Window [0-100]
Hysteresis [0-100]
%
*
Speed Lift [0-MAX
]
rpmx10
Lift Amount [0-200]
%
This parameter sets the fast deceleration time.
It represents the deceleration ramp used by the Hydrovar
stopping the pump once the minimum speed of the pump is reached (P27).
It affects the control of the pump for HCS, MSE and MSY control modes
(also see Par. 6.6.2).
Default: 2.0 s.
This parameter defines the operation of the Hydrovar® controller once the
minimum speed of the pump is reached (P27):
STP
(STP): once the required pressure is reached and no further
request is made, the pump speed decreases to the selected P27 value:
Hydrovar® then keeps running for the selected time interval (P35), and
then stops automatically.
SNI
(SMI): once the required pressure is reached and no further
request is made, the pump speed decreases to the selected P27 value:
Hydrovar® continues running at the same speed. This parameter affects
the control of the pump for HCS, MSE and MSY control modes.
Default: STP
This parameter sets the time delay before a shut-off below P27 occurs.
It is only used by the Hydrovar® controller if P34 = STP.
It affects the control of the pump for HCS, MSE and MSY control modes.
Default: 0 s.
This parameter sets the ramp control interval, as a percentage of the
pressure setpoint.
It is used to define the range of pressures, around the setpoint, in which the
®
Hydrovar
controller uses slow acceleration and deceleration ramps instead
of fast ones.
It affects the control of the pump for HCS, MSE and MSY control modes
(also see Par. 6.6.2).
Default: 10%.
This parameter sets the slow ramp hysteresis, as a percentage of P36.
It helps define the pressure range, around the setpoint, in which Hydrovar
goes from slow acceleration ramp (P28) to slow deceleration ramp (P29).
The parameter affects the control of the pump for HCS, MSE and MSY
control modes (also see Par. 6.6.2).
Default: 80%.
This parameter sets the speed limit after which the linear increase of the
actual require value starts (P02), until the total increase (P39) at maximum
speed (P26).
Default: P27.
This parameter sets the increase value of the actual required value (P02) at
the maximum speed (P26), measured as a percentage of the required value
(P01).
It determines the increase of the required pressure set, useful to
compensate for flow resistances at high flow rates.
Default: 0.
®
controller for
®
Hide quick links:
Advertisement
Table of Contents
