Wilo -CC-System Installation And Operating Instructions Manual page 32

English
installed in the factory) using the floating contact
(closed contact). It is therefore possible to switch
the system on and off.
Dry run protection
Contact closed
Contact opened
Contact load
Do not apply external voltages to the
ATTENTION!
terminals!
Collective run/ failure signalling "SBM / SSM":
The terminals for collective failure signal and col-
lective run signal ( see wiring scheme) provide
potential-free changeover contacts for external
signals.
Potential-free contacts, max. contact load
250 V / 2 A
~
Optional signalling of single run , single failure of
pumps and dry run:
The terminals for single failure signal, single run
signal and dry run signal ( see wiring scheme) pro-
vide potential-free changeover contacts for
external signals.
Potential-free contacts, max. contact load
250 V / 2 A
~
Actual pressure display:
A 0...10 V voltage signal is available via the desig-
nated terminals (see wiring scheme), making it
possible to measure/display the current actual
pressure. Here 0 ... 10 V correspond to the pres-
sure sensor signal 0 ... pressure sensor final value.
For example:
Sensor Display range
16 bar 0 ... 16 bar
Do not apply external voltages to the
ATTENTION!
terminals!
Actual frequency display:
Panels including a frequency converter provides
via the designated terminals (see wiring scheme) a
0...10 V - signal for external measurement / dis-
playing of the actual output frequency. 0...10 V
correspond a frequency range of 0...50 Hz.
Do not apply external voltages to the
ATTENTION!
terminals!
8 Commissioning
We recommend having the unit put into operation
by the Wilo customer service. The customer's wir-
ing is to be checked to make sure it is correct,
especially the earthing, before switching the unit
on for the first time.
The pumps and pipework must be fully rinsed,
30
No water shortage
Water shortage (dry run)
24 V DC / 10 mA
Voltage/Pressure
1 V = 1,6 bar
filled and if necessary bled before being put into
operation for the first time.
All steps for Installation, commissioning and oper-
ation are described in the booster-system's (DEA)
manual.
Re-tighten all supply terminals before
ATTENTION!
putting the unit into operation !
8.1 Factory setting
The controller is presetted factory side. This fac-
tory presetting can be restored again by the
WILO-Service.
8.2 Supervision of motor rotation sense
Check whether the direction of rotation of the
pump in mains operation corresponds with the
arrow on the pump housing by briefly switching on
each pump in the "Manual" operating mode
(menue 1.1). In the case of the wet-runner pumps
the incorrect or correct direction of rotation is
indicated by a control light on the terminal box
(see Fitting and Operating Instructions for pump).
• If all pumps show the incorrect direction of rota-
tion in mains operation reverse 2 random phases
of the main power cable.
Systems without FC (frequency converter):
• If only one pump shows an incorrect direction of
rotation in mains operation 2 random phases are
to be reversed in the motor terminal box for
d 4 kW (direct starting).
motors where P
2
• If only one pump shows an incorrect direction of
rotation in mains operation 4 connections are to
be reversed in the motor terminal box for motors
t 5,5 kW (star-delta starting). The wind-
where P
2
ing lead and winding end of 2 phases are to be
reversed (e.g. V for V and W
1 2
Systems with FC (frequency converter):
• Mains operation: set each pump individually to
>mains< in menu 1.1. Then proceed as for instal-
lations without frequency convertor.
• Frequency convertor operation: Set each pump
individually in the operation mode >>Automatic
with FC<< in menue 1.1 to "Automatic". The
direction of rotation in frequency convertor oper-
ation is then to be checked by briefly switching
each pump on. If all pumps show an incorrect
direction of rotation 2 random phases at the fre-
quency convertor output are to be reversed.
8.3 Adjustment of motorprotection
• WSK(wiring protection contact) / PTC: No
adjustment requested.
• Overcurrent: see chapter 6.1.4
8.4 Sensors and optional modules
For any sensor installation please take notice of
the sensor's installation and operation manuals
The installation of optional modules is carried out
factory side.
for W ).
1 2
Wilo AG 03/2006