Setting The Pump Power - salmson SIE BV Serie Instalación E Instrucciones De Puesta En Marcha

ENGLISH
protected with a FI protection switch. Frequency converters can
affect the function of FI protection switches.
Exception : FI protection switches are permitted in selective
A.C./D.C. sensitive versions.
Identification symbol : FI
Tripping current : > 300 mA
- Check the mains current and voltage.
- Observe pump rating plate data.
- Check that the mains current and voltage comply with the data on
the rating plate.
- Mains fuse: max. permissible (See table below) observe rating plate
data.
Power P 11 kW
N
Max. fuse (A]
- Pump/installation must be earthed in compliance with regulations.
5.2.1 Assignment of supply terminals (See FIG. 3 - 7)
• Mains connection
L1, L2, L3 : Mains voltage: three-phase current 3 ~ 400 VAC,
50 Hz, IEC 38.
PE : Protective conductor connection.
Because of the increased leakage
CAUTION !
current, a reinforced earthing must
additional be connected to according EN 50 178.
• Signal input and output connections
Prior to commencing work on the pump, the supply voltage
must be switched off. Due to the danger of electric shocks,
work on the module may only be continued five minutes after
the supply voltage has been cut off. Check that all connections
(potential-free contacts too) are neutral.
Do not connect an external voltage, as this could
CAUTION !
destroy the module.
• (terminal 1, output) :
+10 V DC - Power supply for signal terminals.
• (terminal 2, analogous input) :
0 ... 10 V / 0 ... as an external setpoint signal : 20 mA
Switching between voltage and current signal :
0 ... 10 V via switch position : S3
0 ... 20 mA via switch position : S3
The frequency and therefore the speed and/or nominal pressure fol-
lows the voltage, or the current if a current signal is selected
(FIG. 8 and 9).
• (terminal 3, analogous input) :
0 ... 10 V (1)
Setting for SALMSON pressure sensor :
0 ... 10 V via switch position : S4
• (terminal 4, output) :
+24 V (3) - Direct voltage for an external consumer/transmitter.
The voltage is short-circuit-proof.
• SALMSON differential pressure sensor connection:
For module SIE..BV already factory-connected, via terminals 3, 7, 4, in
accordance with the sensor cable descriptions (1), (2), (3).
• (terminal 7, output) :
GND (2) - Connection to ground for signal inputs
(0...10 V / 0...20 mA)
• (terminal 10, analogous input) :
Operating mode - Switching between control system (∆p-c)
or regulator mode (n-const) :
bridge
∆p-c
n-const no bridge
15 kW 18,5 kW
25 35 50
(Factory setting)
(Factory setting)
don't change it !
5/10 closed
5/10 open
• (terminal 18, analogous input) :
Ext. off - Setting the External off function :
Release bridge
Locked no bridge
With contact closed the pump is ready for work.
With contact open the pump is switched off.
• (terminal 31-32-33, output) :
SBM (collective run signal): potential-free change-over contact
When operating the pump the relevant contacts are as :
Contact open
Work contact
• (terminal 41-42-43, output) :
SSM (collective fault signal) : potential-free, change-over contact
22 kW
In the event of a fault with the pump the relevant contacts are as :
Contact open
Work contact
CAUTION !
• Signal input and output contact loads
Digital inputs
Analogous inputs
SBM and SSM relay
Signal supply
10 V DC
Signal supply/control
Voltage 24 V DC
6. OPERATION
6.1 Filling and venting the unit
- The system must be filled and vented properly.
- To avoid noise and damage resulting from cavitation, it is important
to ensure a minimum inlet pressure at the port of the pump. The
minimum inlet pressure depends on the location and point of ope-
ration and must be determined accordingly. Considerable para-
meters in determining the minimum inlet pressure are the NPSH
value of the pump at its operation point and the steam pressure of
the flow medium.
- Vent the pump by opening the vent valve (FIG 10 - item 1.31).
CAUTION !
Depending on the fluid temperature and the system pressure,
if the vent valve is completely loosened hot liquid or gas can
escape
BEWARE OF SCALDING !
CAUTION VOLTAGE ! Protect terminal box from leaking water
while venting.

6.2 Setting the pump power

The system is set to a specific operating point (point of maximum
load, calculated maximum heating requirements). When starting up
for the first time, the pump capacity (delivery head) is to be set in
accordance with the system operating point. The presetting does not
21
11/18 close
11/18 open
between terminal 31-32
between terminal 32-33
between terminal 31-32
between terminal 32-33
Terminals 1 to 22 satisfy the requirement of "safe
isolation" (to EN50178) to the line terminals, as well
as to the SBM and SSM terminals (and vice versa).
Max. input voltage :
Input level High :
Input level Low :
Input voltage/current :
Max. input voltage :
Input resistance :
change-over contact :
Current :
Short-circuit current :
General current :
A dry run will destroy the pump's mechanical seal.
The differential pressure sensor must not be bled
(risk of destruction).
or even shoot out at
(factory setting)
open
closed
open
closed
30 V DC
> 7 V DC
< 4 V DC
switching
+10 V/+20 mA
via switching
S3 for terminal 2
only
30 V
Ri = 20 kW (voltage)
Ri = 250 W (current)
2A / 250 V~ / AC 1
Max. 10 mA for
10 V DC
30 mA
60mA short-circuit
proof
high pressure.