Wilo Control EC-Fire, Installation And Operating Instructions Manual

Page: 66 / 114

English
56 WILO SE 06/2018
NOTICE
The switchgear has integrated rotating field mon-
itoring. For this to work correctly, the switchgear
must be connected to a clockwise rotating field. If
there is no clockwise rotating field, error
code “E006” appears on the display.
7.2.3 Pumps mains connection
Insert the power supply cable laid by the customer
through the threaded cable connections and
secure them.
Connect the wires for each pump as follows.
Mains voltage 3~230/380/400 V:
• Motor protection relay, terminal T1: L1
• Motor protection relay, terminal T2: L2
• Motor protection relay, terminal T3: L3
• Earth terminal strip: PE
NOTICE
The rotating field is routed from the mains con-
nection directly to the pump connection. Note
the required rotating field of the connected
pumps (clockwise or counter-clockwise)!
Observe the installation and operating instruc-
tions for the connected pumps.
7.2.4 Connection for pressure detection signal
transmitter
Pressure detection can be performed using a pres-
sure switch or an analogue pressure sensor (meas-
urement range 4 – 20 mA).
Insert the core into the (EMC) threaded cable con-
nection and secure it. Connect the wires to the
terminals according to the connection diagram.
Connect a shield (if a pressure sensor is used)
according to the notes under 7.2.
CAUTION!
No external voltage may be applied.
7.2.5 Connection for volume flow detection signal
transmitter
Volume flow detection can be performed using a
flow switch or an analogue volume flow sensor
(measurement range 4 – 20 mA).
Insert the core into the (EMC) threaded cable con-
nection and secure it. Connect the wires to the
terminals according to the connection diagram.
Connect a shield (when a volume flow sensor is
used) according to the notes under 7.2.
CAUTION!
No external voltage may be applied.
7.2.6 Connection for protection against low water
level
The low water level (dry-running protection) can
be monitored by means of a potential-free con-
tact. The terminals are fitted with a converter
bridge at the factory.
Insert the core into the threaded cable connection
and secure it. Remove the converter bridge and
connect the wires to the terminals according to
the connection diagram.
CAUTION!
No external voltage may be applied.
7.2.7 Connection of remote deactivation of all pumps
(Ext. Off)
Remote deactivation of all pumps can be realised
through a potential-free contact. The terminals
are fitted with a converter bridge at the factory.
Insert the core into the threaded cable connection
and secure it. Remove the converter bridge and
connect the wires to the terminals according to
the connection diagram.
CAUTION!
No external voltage may be applied.
7.2.8 Connection for actual pressure value display
For external measurement/display of the current
actual pressure value, there is a signal
of 0 – 10 V. 0 V corresponds to the pressure sen-
sor value “0” and 10 V corresponds to the pressure
sensor limit value.
Example:
• Pressure sensor 16 bar (menu 5.11)
• Display range: 0...16 bar
• Setting: 1 V = 1.6 bar
Insert the core into the threaded cable connection
and secure it. Connect the wires to the terminals
according to the connection diagram.
CAUTION!
No external voltage may be applied.
NOTICE
To be able to use the function, a pressure sensor
must be used with the value set to “Senso” in
menu 5.06.
7.2.9 Connection for collective run signal (SBM) and
collective fault signal (SSM)
Potential-free contacts are available for external
collective signals.
Insert the core into the threaded cable connection
and secure it. Connect the wires to the terminals
according to the connection diagram.
• Contact type: changeover contact
• Switching capacity: 250 V, 1 A
Protection against low water level
Contact closed No low water
Contact open Water shortage
External activation/deactivation
Contact closed Pumps enabled
Contact open All pumps off – signal via an icon on the
display