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Wilo-WiBooster - Installation and Operation Manual
7.2.2
Programmable Logic Controller Features
The Wilo-WiBooster boosting system technology is the
current state of the art functionality and factory-checked
to ensure it performs at start-up.
The programmable logic
controller shall have the following attributes:
• 7” LED color touchscreen with a display resolution of
800 x 480 pixels.
• The PLC shall indicate on the display, per the pump
Icon, the individual pump status in real-time.
(green=running, red=faulted, no color=off).
• The PLC shall be factory set for either base load/peak
load or duty/standby operation.
• The PLC shall provide off/hand/auto function. Hand
operation shall be password protected.
• The PLC shall display pump hours, suction PSI, discharge
PSI, pump frequencies, total kWh for system, and
current kWh per pump.
• The PLC shall be able to modify the discharge pressure
setting through password protected screen.
• The PLC shall have a low pressure cut out function.
• The PLC shall have pipe burst protection.
•
The PLC shall be able to be able to flash the PLC
program by means of a Micro-SD card via Micro-SD port
or remotely flashed by the factory (note: internet access
need in order to be flashed remotely).
• The PLC shall have a RJ45 Ethernet port capable of
transmitting data 10/100Mbps using a Cat 5 cable.
• The PLC shall have a 2.0 USB port available for
communication.
• The PLC shall have onboard Modbus Protocol. Two serial
ports available; one for communication to the VFD and
one open for the building management system.
• The PLC shall have the following I/O:
• Number of digital inputs: 18
• Number of digital outputs: 17
• Number of analog inputs: 4
• Number of analog outputs: 4
Optional panel items include
• NEMA 3R panel suitable for outdoor applications.
• Run/fault lights per pump
• Surge protection
• Interior panel light
• Transformer
• NEMA 3R transformer cover
• BACnet gateway
• LONworks gateway
• CANopen gateway card
7.2.3
Sequence of Operations
1.
When pressure drops low of the pressure band, first pump
will turn on.
2. The pump will adjust speed to maintain pressure at the
set point.
3. Additional pumps will turn on to maintain pressure if
demand cannot be met with one pump. In systems with
more than 2 pumps, there will be a delay between each
additional pump turning on.
4. When additional pumps turn on, they will adjust in speed
so that all pumps run at the same speed.
5. When multiple pumps are running, one will turn off if
either:
a. Pressure is high out of band for a programmable
amount of time.
b. System will periodically check whether fewer pumps
can maintain pressure efficiently and if so, a pump
will turn off.
6. If only 1 pump is running, the pump will turn off if either:
a. Pressure is high out of band for a programmable
amount of time.
b. .System will periodically boost pressure a
programmable amount above the set point. If
pressure does not drop after returning the set point
to normal, the pump will turn off.
01 Home Screen
1. Battery indicator
a. Not visible until battery level is low. Battery is sup-
posed to last for around 7 years. If battery fails, PLC
time/date information as well as any saved data will
be lost if power is lost. Battery can be replaced while
power is running to maintain data, although battery
warning will not clear until power is cycled.
2. Hand Control indicator
a. Displays a warning that PLC is currently in hand control
mode. PLC will not respond automatically to pressure
changes when in this mode. Pumps can be turned
off from the main screen during hand control, unless
the hand control alarm override is active. In that case,
pumps can only be controlled from the hand control
screen.
3. Active Alarms
a. Will cycle through all currently active alarms every few
seconds.
b. Only visible if at least one alarm is active.
c. Can be clicked to view active alarms.
4. Pump information (Icon for pump will change based on
booster model)
a. The pump icons display whether pumps are on, off, or
faulted
i. Cyan indicates the pump is running
ii. Grey indicates that the pump is off
iii. Orange indicates the pump has faulted
b. The switch below the pump icons will take the pumps
from auto to off.
c. The bar below the auto/off switch show pump speed.
A fully green bar is full speed while an empty bar is off.
Indication is based on full 0-60Hz, so a pump running
at a minimum speed of 30Hz will show the bar half
green. If max frequency is changed to 50Hz, bar will be
scaled from 0-50Hz.
5. Suction and discharge pressure
a. Show current suction and discharge pressures
b. Suction pressure will not display if suction pressure
transducer is not used
6. Standby pump indicator
a. A standby pump can be set in the options menu. If
using one standby pump, the pump with the highest
runtime will be the standby pump until all pumps are
off, then a new pump is evaluated for standby if the
highest runtime pump has changed. With 2 standby
pumps, the highest 2 runtime pumps are set to standby.
b. Standby pump will not run unless a pump has faulted or
is taken to off.
7. System information button
a. Goes to system information screen. No password
required
8. Operator settings button
a. Goes to operator settings screen. Password 1111
9. Advanced settings button
a. Goes to advanced settings screen. Password 2222
10. Silence Button
a. Not used. Touch screen to silence alarms.
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