How It Works; Technical Data - Wilo Control MS-L Series Installation And Operating Instructions Manual

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1
Fig. 2: Control MS-L 2
4.2

How it works

4.3

Technical data

14
Product description
The current operating states (operation and fault) are visually indicated via LEDs on the
front side. Faults are also indicated audibly via an integrated buzzer. The last error is
2
stored in the fault memory.
LED indicators
Automatic mode
Pump operation
3
High water
Overload fault
Winding fault
Service interval indicator
Monitoring of certain operating paramet-
ers
Key
− = not available, • = available
* Only "LS" version
Operation is via four or five buttons on the side-mounted control panel:
ƒ
Automatic mode
ƒ
Manual mode (for each pump)
ƒ
Stop (all pumps off)
ƒ
Buzzer off/reset
The pumps are automatically switched on and off depending on the fill level:
ƒ
Control MS-L.../MS-L...-O:
–
The level is detected via a two-position control with a float switch for each
pump.
–
The high water level is detected by a separate float switch.
ƒ
Control MS-L...-LS:
–
The level is detected via two switching points by a rod float sensor (4 ... 20 mA
signal).
–
The high water level is detected by a separate switching point.
A follow-up time can be set for deactivation. When the high water level is reached,
there is:
ƒ
A visual and audible alarm signal
ƒ
Forced switch-on of all pumps
ƒ
Collective fault signal activation
ƒ
Activation of the external alarm signal (only Control MS-L2...)
Date of manufacture*
Mains connection
Mains frequency
Max. current consumption per pump
Max. rated power per pump
Pump activation type
Ambient/operating temperature
Storage temperature
Max. relative humidity
Protection class
Electrical safety
Control voltage
Housing material
*The date of manufacture is stated in accordance with ISO 8601: JJJJWww
ƒ
JJJJ = year
ƒ
W = abbreviation for week
ƒ
ww = calendar week
MS-L 1... MS-L 2...
• •
• •
• •
• •
• •
− •
− •*
See rating plate
See rating plate
50/60 Hz
See rating plate
See rating plate
direct
-30 ... +60 °C
-30 ... +60 °C
50 %, non-condensing
IP54
Pollution degree II
24 V DC
UV-resistant polycarbonate
WILO SE 2020-05