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5.10 - 4 VSD
The VSD setup for proportional or PID speed control if the output type is set to VSD.
RUNNING
MENU
VSD full speed level
VSD speed at stop level
Manual speed
Setup: 4 VSD
2.50m
31.0Hz
30.0Hz
RUNNING
MENU
PID proportional
PID integral
VSD no demand speed
Manual speed
Pipe fill
Sleep assist
Sleep boost pressure increase
Setup: 4 VSD
1.0
10.0
31Hz
30.0Hz
Boost
50kPa
RUNNING
MENU
VSD full speed temperature
VSD speed at setpoint
Manual speed
Setup: 4 VSD
62.5C
31.0Hz
30.0Hz
Level Control
Pressure Control
Temperature Control
Level
VSD full speed level
This is the analog level at which all the pumps will be running at full speed. Ensure that it is set lower than
the
setpoint
if the
control direction
= ‘Fill’ and higher than the setpoint if the
control direction
= ‘Empty’.
VSD speed at stop
level
This is the speed the pumps will be running at when at the
setpoint
stop level.
Manual speed
This is the speed a VSD controlled pump will run in manual. If the system is in auto and a duty or standby
pump is running then the auto speed will override the
manual speed
.
Pressure
PID Proportional
Proportional is the controlled speed response based on the analog feedback distance from
setpoint
when configured for pressure VSD. ‘Increase’ = More responsive, ‘Decrease’ = Less responsive.
See Step
5.11 on the next page for more information on setting the PID.
PID Integral
Integral is the controlled speed response based on the analog feedback time from
setpoint
when
configured for pressure VSD. ‘Increase’ = Slower response, ‘Decrease’ = Faster response.
See Step 5.11 on
the next page for more information on setting the PID.
VSD No demand
speed
Once the pump speed has dropped below the
No demand speed
for the
Sleep delay
the system will go
to sleep.
See Step 5.12 on the next page for more information on setting the
No demand speed
.
Manual speed
This is the speed a VSD controlled pump will run in manual. If the system is in auto and a duty or standby
pump is running then the auto speed will override the
manual speed
.
Pipe fill
If enabled, when the system wakes up from sleep and the analog pressure is more than 20% of the
transducer range below
setpoint
the system will run a single duty pump at 45Hz to increase the pressure
slowly. If the pump fails to increase pressure to less than 20% of the transducer range from
setpoint
in 10
minutes a pipe fill fault will lockout the pumps.
Sleep assist
When the pump speed is not varying more than 0.1Hz for 20 seconds the system will initiate one of the
following sleep assist modes if selected. ‘Speed minimise’ will slowly drop the pump speed to try and
reach the
No demand speed
. If the pressure drops from
setpoint
the system will resume normal running.
‘Boost’ will temporarily adjust the
setpoint
to
setpoint
+
sleep boost pressure
increase to increase the
system pressure, before returning to the normal running and
setpoint
. This should slow the pump speed to
below the
No demand speed
if there is no system demand.
Sleep boost pressure
increase
This is the target pressure above the
setpoint
which the sleep boost will try and reach before returning to
normal operation.
Temperature
VSD full speed
temperature
This is the analog temperature at which all the pumps will be running at full speed. Ensure that it is set
lower than the
setpoint
if the
control direction
= ‘Heat’ and higher than the
setpoint
if the
control direction
= ‘Cool’.
VSD speed at setpoint
This is the speed the pumps will be running at when at the
setpoint
.
Manual speed
This is the speed a VSD controlled pump will run in manual. If the system is in auto and a duty or standby
pump is running then the auto speed will override the
manual speed
.
Step 5 - Setup (Continued)
