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3. TRANSPORT AND STORAGE
The pump should be protected against moisture and physical dama-
ge during transport and interim storage.
It should not be exposed to temperatures outside the range
-30°C to +60°C.
The pump should be transported using authorised transportation
equipment. This is to be attached to the pump flanges and if neces-
sary to the outer motor diameter (must be secured against slipping!).
The ring bolts on the motor are only to be used as guides when taking
up the load.
The ring bolts on the motor must only be used to transport the
motor, not the entire pump.
4. PRODUCTS AND ACCESSORIES
4.1 The pump
All pumps described in this manual are compact, single-stage, low-
pressure circulating pumps with a directly flanged motor. The mecha-
nical seal is maintenance-free. The pumps can be assembled direct-
ly as inline pumps in a well-fastened pipeline or placed on a sleeper
wall. The pump housing is of an INLINE design, i.e. inlet- and dischar-
ge-end flanges are on a centre line. All pump housings are fitted with
pump feet. Base mounting is recommended for pump installation.
On the motor housing is an electronic module that sets the speed of
the pump to a set value that can be varied within the control range.
Depending on the control system involved, the differential pressure is
subject to different criteria. Regardless of the control system involved,
the pump continually adapts itself to the varying power requirements
of the units, especially when being used in conjunction with tempe-
rature valves or mixers.
The main benefits of electronic control are :
• It does not require overflow valves ;
• It saves energy ;
• It reduces noise caused by the flow.
Two pump types ensure the operating modes and functions descri-
bed below :
Type SIE...BV : Manual operation via the possibility of "manual" adjust-
ment of the set value using the "+ and –" key functions on the elec-
tronic module's control panel.
Type SIE...ED : External operation via the possibility of "external"
adjustment of the set value via current/voltage signals.
The types of operation, which can be selected, are :
Control system mode (∆p-c) : The electronic keeps the differential
pressure generated by the pump constantly within the permissible
delivery flow range at the set differential pressure until the maximum
speed is reached. The set value H s comes from the pressure sensor to
the 0..10 V input (FIG. 8).
Regulator mode (n-const) : The frequency and therefore the speed
of the pump is set via the frequency converter between 20 Hz...50 Hz.
The electronics allow the speed of the pump to be kept constant at
a fixed set value n s (FIG. 9). The regulator mode deactivates the
module control.
The electronic module has the following inputs/outputs:
+24 V (output) : Direct voltage for an external consumer/transmitter.
The + 24 V may be loaded with max. 60 mA. The voltage is
short-circuit-proof.
0 ... 10 V (input) : In control system mode the actual pressure value of
the SALMSON differential pressure sensor must be applied as a volta-
ge signal (0...10 V).
0 ... 10 V / 0 ... 20 mA (input) : In regulator mode, the speed can be
set via an external current or voltage signal. The frequency and thus
the speed follows the voltage in accordance with FIG. 9.
In control system mode, the nominal pressure value can be set via an
external current/voltage signal. The differential pressure then follows
the signal in accordance with FIG. 8.
GND (Signal ground) : connection to ground for signal inputs
(0...10 V o 0...20 mA)
(Ext. off) : The pump can be switched on/off via the external poten-
tial-free contact. Systems with a higher operating frequency
(> 20 operations/day) are to be switched on/off via "ext. off).
SBM (collective run signal) : A collective run signal can be attached
via the potential-free contact for a central control point.
SSM (collective fault signal) : A collective fault signal can be atta-
ched via the potential-free contact for a central control point.
The pumps are fitted with an electronic overload protection system
which switches the pump off should it become overloaded.
For data storage, the modules are equipped with a non-volatile
memory. What this means is that data are stored, even during long
periods of down time. Once the voltage returns the pump starts ope-
rating again with the values set before the power outage.
The module rating plate is to be found in the terminal box. It contains
all data necessary for the scheduling the unit.
4.2 Operating the pump
On the top of the electronic module is the control panel with opera-
tor buttons and 3 LEDs for displaying the status of the pump.
LED display / functions
LED
Mains
Mains on
(green)
Function
Motor
(green)
running
Problem
Problem
(red)
Button functions/control panel for BV version
BUTTONS
Increase set
value
Reduce set value
RESET
Button functions/control panel for ED version
BUTTONS
RESET
All operating and control modes are ensured by assigning the signal
inputs and outputs listed below. The functions are configured by
necessary bridging/assigning individual terminals where necessary
and placing switches (See also 5.2).
Unscrewing the front terminal box cover of the control panel reveals
the terminals and switches to be assigned for the functions (FIG. 3).
18
On
flashing
---
Motor accelera-
ting/decelerating
Warning
Depending on type of operation, possibility of set-
ting speed ns (in accordance with 20 ... 50 Hz of
nominal frequency) or nominal pressure value Hs
(set value adjustment from 0 - 100% of final pres-
sure sensor value in accordance with 0 -10 V.
Reset after motor stopped due to fault.
Reset after motor stopped due to fault.
Off
Mains off
Motor
stationary
No error
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