Set-Up Of The Control Device; Function And Operation; Operating Modes Of The Switchgear - Wilo CC-Booster Einbau- Und Betriebsanleitung

6.1.2 Set-up of the control device

The set-up of the control device is dependent on
the performance of the pumps that are to be
connected, and the version (CC, CC-FC, CCe)
(see: Fig. 1a CC Direct starting; Fig. 1b CC Star
triangle starting, Fig. 1c CC-FC Direct starting;
Fig. 1d CC-FC Star triangle starting, Fig. 1e CCe).
It consists of the following main components:
• Main switch: Switches the switchgear on/off
(item 1)
Component
Central unit (CPU)
Analogue module 2I/1O
Analogue module 4O
Digital module 4I/4O
Digital module 8I/8O
COM interface
Mains 230 V —> 24 V
Mains 400 V —> 24 V
• Frequency converter: Frequency converter for
load-dependent speed regulation of base-load
pump – only available for CC-FC design (item 4)
• Motor filter: Filter for ensuring a sinusoidal motor
voltage and for suppressing voltage peaks – only
in the CC-FC version (item 5)
• Fuse protection of drives and the frequency con-
verter: Fuse protection of the pump motors
and the frequency converter. For devices with
P ≤ 4.0 kW: Motor protection switch. In the CCe
2
version. Circuit breaker to protect the pump mains
power cable (item 6)
• Contactors/contactor combinations: Contactors
for switching on the pumps. For devices with
P ≥ 5.5 kW including the thermal trigger for over-
2
current protection (set value: 0.58 * IN) and the
time relay for the star-triangle switching (item 7)
• Manual-0-automatic switch: Switch for selecting
the pump operating modes "manual" (emergency/
test operation on the mains; motor protection
available), "0" (pump switched off – no activation
possible via PLC) and "auto" ( automatic mode
enabled via PLC) (item 8)
The speed of every pump (0-100 %) in manual
mode can be set with the hand control in the
CCe version
Installation and operating instructions Wilo-Control CC-Booster
Fig. 2 CC-FC
Item
1-3 4-5
Pumps Pumps
1 ‡ ‡
2 ‡ ‡
3 — —
‡
4 —
5 — —
6 ‡ ‡
7 ‡ ‡
8 — —
• Touch display: Display of operating data (see
menus) and of the operating status through
changing colour of the background lighting.
Menu selection and parameter input possible via
touch sensitive surface. (item 2).
• Programmable logic controller: Modularly
designed PLC with power supply unit. The respec-
tive configuration (see below) is system-depend-
ent (item 3)
PLC configuration (see Fig. 2):
CC
6 1-6
Pumps Pumps
‡ ‡
‡ ‡
— —
— —
‡
—
‡ —
‡ ‡
— —

6.2 Function and operation

DANGER! Risk of fatal injury!
When working on the open switchgear, there's
a danger of electric shock from touching the live
components.
This work must only be carried out by qualified
personnel!
NOTE:
After connecting the switchgear to the supply
voltage, as well as after every mains interruption,
the switchgear returns to the operating mode set
before the power interruption.

6.2.1 Operating modes of the switchgear

Normal operation of switchgear with frequency
converter – CC-FC version (see Fig. 3)
An electronic signal transmitter (measurement
range to be set in menu 4.3.2.3) supplies the con-
trol variable actual value as a 4...20 mA current
signal. Then the controller maintains the system
pressure constant by means of the comparison of
the setpoint/actual value (for setting of the refer-
›
ence setpoint see menu 3.1).
If there is no "external off" signal and no fault, the
base-load pump with load-sensitive speed con-
trol starts when its start level
English
CC CC
1-6 1-6
Pumps Pumps
‡ ‡
‡ ‡
1x 2x
— —
— —
— —
— —
‡ ‡
œ
is undershot.
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