salmson Easy Control MS-L 2x4kW Instalacion Y Puesta En Servicio página 32

English
• Pump connection 3~400 V:
• Terminals: 2/T1 (U), 4/T2 (V), 6/T3 (W)
• The protective ground conductor (PE) is connected to
the ground terminal (;).
• A clockwise rotating field must be present!
After the pumps have been connected correctly, the pumps need
to be activated and the motor protection adjusted.
Activating pumps
The connected pumps have to be switched on via DIP switch 2,
DIP 6 and 7. The factory setting for the DIP switches is OFF. Lev-
el-control dependent activation of pumps is not possible in this
setting.
• DIP 6 ON: Pump 1 activated
• DIP 7 ON: Pump 2 activated
Adjusting the motor protection
The electronic motor protection monitors the rated current of
the connected pumps during operation. Deactivation takes place
immediately if the set rated current is exceeded.
NOTE
With connection of 3-phase current motors, deac-
tivation also occurs after 1 sec. if the rated current
drops below 300 mA during operation!
After each deactivation, the fault needs to be acknowledged via
the "Reset" button.
The motor protection needs to be set to the rated current shown
on the rating plate.
The desired rated current is set via DIP switch 1, DIP 1-5. The low-
est current value is 1.5 A in which all DIP switches are set to OFF
position. On activating the individual DIP switches (ON position),
the current value is increased by the value of the relevant DIP
switch.
DIP 1
Current value 0.5 A
Example: Required rated current 7.5 A
1.5 A + 2.0 A (DIP 3) + 4.0 A (DIP 5) = 7.5 A
5.4.4. Winding temperature monitoring connection
Bimetallic strips may be connected for temperature monitoring.
Monitoring is self-acknowledging, meaning that after the motor
has cooled down the error is reset automatically and the LED goes
off.
Connect the wires to the terminals for the corresponding pump at
the terminal strip:
• Pump 1: Terminal 1 and 2 (WSK-P1)
• Pump 2: Terminal 3 and 4 (WSK-P2)
NOTE
• No external voltage may be applied!
• On connecting a winding monitoring device, the fac-
tory converter bridge must be removed!
2 3 4
1.0 A 2.0 A 3.0 A
5.4.5. Connection for level measurement signal transmitter
The level is detected using two float switches. Connection of level
sensors and electrodes is not possible!
Insert the cable ends of the cable laid onsite through the threaded
cable connections and secure accordingly.
Connect the wires to the terminals for the corresponding pump at
the terminal strip:
• Pump 1/base load: Terminals 5 and 6 (BL)
• Pump 2/peak load: Terminals 7 and 8 (PL)
NOTE
No external voltage may be applied!
5.4.6. High-water protection connection
A high-water alarm can be realized via a float switch. A visual
(LED) and audible (buzzer) warning are first emitted followed by
forced switch-on of the pump. The collective fault signal is also
active.
Monitoring is self-acknowledging, meaning that after the water
level has gone down the error is reset automatically and the LED
goes off.
Insert the cable ends of the cable laid onsite through the threaded
cable connections and secure accordingly.
Connect the wires at terminals 9 and 10 (HW) of the terminal strip.
NOTE
• No external voltage may be applied!
• We recommend high-water protection always be
provided as additional fuse protection for the unit.
5.4.7. Collective fault signal connection
A potential-free contact is available via the corresponding termi-
nals for external signals (e.g. horn, flash light or alarm unit).
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• Contact: Changeover contact
4.0 A
• Terminals: 11, 12, 13
• Min. switching capacity: 12 VDC, 10 mA
• Max. switching capacity: 250 VAC, 1 A
• In case of an alarm, a drop in voltage and when the main
switch is switched off, the contact between terminals 12
and 13 is closed.
Insert the cable ends of the cable laid onsite through the threaded
cable connections and secure accordingly.
Connect the wires according to the required function at terminals
11, 12 and 13 of the terminal strip.
DANGER due to electrical voltage
An external voltage is applied at the terminals for
this function. This is also present at the terminals
when the main switch is switched off! There is a
risk of fatal injury! The power supply must be dis-
connected from its source before all work!
5.4.8. Connection of external alarm signals in case of high
water (alarm)
A potential-free contact is available via the corresponding termi-
nals for external signals in case of an active high water alarm (e.g.
horn, flash light or alarm unit).
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