Motor Protection And Activation Types - salmson SHS Manuel D'installation Et Mise En Service

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5.6.1 Technical details
U
NIT
Activation type
Network-side fuses
Connection for WSK
Cable cross section 1~230
V
Cable cross section 3~400
V
Only slow-blow fuses or K characteristic automatic cut-outs
may be used for pre-fusing.
5.6.2 AC motor
The AC version is delivered ready to plug in. To connect it to the
electricity supply, plug it into the power socket.
Connection according to DIN EN / IEC 61000-3-11
- The pump, with an output of 1.5 kW, is intended for opera-
tion with an electricity supply with a system impedance Zmax
at the house service connection of max. 0.125 (0.086) ohms
with a maximum of 6 (20) switches.
- The pump, with an output of 1.1 kW, is intended for opera-
tion with an electricity supply with a system impedance Zmax
at the house service connection of max. 0.142 (0.116) ohms
with a maximum of 6 (20) switches.
If the impedance and the number of switches per hour is
greater than the above values, the pump can cause temporary
voltage drops and voltage fluctuations ("flickers") due to the
unfavorable electricity supply. Certain measures may therefore
be necessary before the pump can be operated properly using
this connection.
Your local power supply company or the pump's manufacturer
can give you the information required.
5.6.3 Three-phase current motor
The three-phase version can be delivered with a CEE plug or
free cable ends:
- The version with a CEE plug is connected to the electricity
supply by plugging it into the electricity socket.
- The version with free cable ends is connected to the electric-
ity supply by connecting them to the switch box. The wires of
the connection cable are assigned as follows:
6-
WIRE CONNECTION CABLE
Wire no.
1
2
3
green/yellow
4
5
5.6.4 Monitoring device connections
Units with a 3- or 4-wire connection cable have an integrated
switch for temperature control. This switches off the product
SHS 205... SCA/SVO 205...
SBS 206... SCA/SVO 206...
direct direct
16 A 16 A
5 V DC, 2 mA;
max.: 30 V DC, 30 mA
6G1 4G1
6G1 6G1
Terminal
U1
V1
W1
PE
WSK/;
WSK
when it overheats and switches it back on automatically after it
has cooled down.
For units with a 6-wire cable, the temperature control system
must always be connected separately!
When used in explosion hazard areas, the temperature
monitoring device must be connected in such a way
that, in the event that the temperature limiter has trig-
gered, it can only be restarted after the "release but-
ton" has been activated manually.
This means that units with an integrated switch are not
ex-approved!
Beware of connecting incorrectly!
WSK is connected single-ended to protec-
tive earth (PE). Therefore, the control voltage
in use must be galvanically isolated and not
grounded!
For constructional reasons, safe function of the named
protection equipment is only guaranteed with Salm-
son Control switching devices. All other switching
devices must be supplemented by the SK 545 monitor-
ing device.
For this reason, no warranty claims can be accepted for dam-
ages to the winding resulting from unsuitable motor monitoring.
5.7

Motor protection and activation types

5.7.1 Motor protection
The minimum requirement is a thermal relay/motor protection
switch with temperature compensation, differential triggering
and an anti-reactivation device in accordance with VDE 0660 or
the appropriate national regulations.
If the product is connected to electrical systems in which faults
frequently occur, we recommend installing additional protective
devices at the customer (overvoltage, undervoltage or phase
failure relays, lightning protection etc.). We also recommend
installing an earth leakage circuit breaker.
Local and national regulations must be adhered to when con-
necting the product.
5.7.2 Activation types
Direct activation
At full load, the motor protection should be set to the rated cur-
rent at the operating point (see type plate). At partial load, we
recommend that the motor protection be set 5% above the cur-
rent measured at the operating point.
Starting transformer/soft start
Motor protection should be set to the rated current when fully
loaded. At partial load, we recommend that the motor protec-
tion be set 5 % above the current measured at the operating
point. Start up time with reduced voltage (approx. 70 %) is a
maximum of 3 seconds.
Operation with frequency transformers
The product may not be operated on frequency transformers.
Products with plugs/switching devices
Insert the plug into the plug socket and press the on/off switch
or let the product switch on/off automatically by means of the
attached level control system.
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