Wilo Control MS-L, Installation And Operating Instructions Manual

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en
Installation and operating instructions • Wilo-Control MS-L • Ed.02/2022-05 29
• Make sure that the installation and operating instructions are read and understood by all
personnel.
• The installation site of the switchgear is overflow-proof.
• The switchgear must be properly fused and earthed.
• The signal transmitter must be installed and set in accordance with the system docu-
mentation.
• Observe the minimum water submersion of the connected pumps.
• Safety devices (incl. emergency off) of the entire system are switched on and checked
for trouble-free operation.
• The switchgear is suitable for use under the specified operating conditions.
8.2 Commissioning in explosive atmo-
spheres The switchgear may not be put into operation in potentially explosive atmospheres!
DANGER
Risk of explosion if the switchgear is installed in potentially ex-
plosive areas!
The switchgear does not have its own explosion protection class and
must always be installed outside of potentially explosive areas! The con-
nection must be made by a qualified electrician.
8.3 Connection of signal transmitters
within potentially explosive atmo-
spheres
DANGER
Risk of explosion if signal transmitters are installed in poten-
tially explosive areas!
The switchgear does not have an intrinsically safe circuit for connecting
the signal transmitters. The signal transmitters must always be installed
outside of potentially explosive areas! The connection must be made by
a qualified electrician.
8.4 Activating the device
NOTICE
Integrated rotating field monitoring
The switchgear monitors the rotating field at the mains connection.
There is an audible and visual error message if the mains connection has
a counter-clockwise rotating field:
• Continuous tone via the integrated buzzer.
• All LEDs flash anticlockwise as running light.
NOTICE
Operating mode after power failure
Following a power failure, the switchgear will automatically start up in
the last operating mode set.
✓ Switchgear is closed.
✓ Installation carried out correctly.
✓ All signal transmitters and consumers are connected and installed.
✓ Switching points set correctly.
✓ Motor protection set.
✓ Functions activated.
✓ Follow-up time set.
1. Turn the main switch to the “1/ON” position.
NOTICE! Switchgear without main switch: Establish power supply by means of
mains isolator!
2. Switchgear starts. All LEDs light up for 2 s.