7
en
Connect the irradiation sensor CS10 to the terminals CS10 with correct polarity.
To do so, connect the cable marked GND to the GND common terminal block,
the cable marked CS to the terminal marked CS10.
The terminals marked PWM/0-10 V contain the 2 PWM / 0-10 V speed control
signal outputs for high-efficiency pumps.
Connect the digital Grundfos Direct Sensors™ to the VFD and / or RPD in-
puts.
The controller is supplied with power via a mains cable. The power supply of the
device must be 100 … 240 V~ (50 … 60 Hz).
The mains connection is at the terminals:
Neutral conductor N
Conductor L
Protective earth conductor
⏚
(common terminal block)
WARNING!
Electric shock!
L' is a fused contact permanently carrying voltage.
Î
Always disconnect the controller from power supply
before opening the housing!
Conductor L' (L' is not connected with the mains cable. L' is a fused contact per-
manently carrying voltage)
potential-free relay
protective conductor
common terminal
block (PE)
neutral conductor
common terminal
block
VBus
®
PWM / 0-10 V
connection
VBus
GN
D
2.3
Data communication / Bus
The controller is equipped with a VBus
®
for data transfer and energy supply to
external modules. The connection is to be carried out at the two terminals marked
VBus (any polarity).
One or more VBus
®
modules can be connected via this data bus, such as:
• DL2 Datalogger
• DL3 Datalogger
• KM1 Communication module
Furthermore, the controller can be connected to a PC or integrated into a net-
work via the VBus
®
/USB or VBus
®
/LAN interface adapter (not included).
On the website, firmware updates are also availabe.
Note:
More accessories on page 74.
2.4
SD memory card slot
The controller is equipped with an SD card slot.
With an SD card, the following functions can be carried out:
• Store measurement and balance values onto the SD card. After the
transfer to a computer, the values can be opened and visualised,
e. g. in a spreadsheet.
• Prepare adjustments and parameterisations on a computer and
transfer them via the SD card.
• Store adjustments and parameterisations on the SD card and, if necessary, re-
trieve them from there.
• Download firmware updates from the Internet and install them on the controller.
Note:
An SD memory card with up to 32 GB memory capacity can be used.
A standard SD card is not included, but can be purchased from the manufacturer.
For more information about using an SD card, see page 65.
sensor terminals
Sensor ground common
terminal block
Содержание BW/H Komfort HE
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