Inputs And Outputs; Functions; Type Key - Wilo Control MS-L Series Installation And Operating Instructions Manual

4.4

Inputs and outputs

Inputs/outputs
Inputs
Float switch for level detection
Float switch for detecting the high water level
Analogue input 4...20 mA for level detection with rod float sensor
Input for thermal winding monitor with bimetallic strip.
Outputs
Potential-free changeover contact for the collective fault signal
Potential-free changeover contact for an external alarm signal
4.5

Functions

Inputs/outputs
Internal buzzer
Pump kick
Service interval indicator
Monitoring operating parameters
Follow-up time
Adjustable switching points for pump ON and high water*
4.6

Type key

Installation and operating instructions Wilo-Control MS-L
Product description
Key
1/2 = number of inputs and outputs, − = not available
NOTICE! PTC sensors cannot be connected!
Output contact load:
ƒ
Minimum: 12 VDC, 10 mA
ƒ
Maximum: 250 VAC, 1 A
The switchgear is equipped with the following functions. All functions are switched off
at the factory. The functions must be switched on as required.
Key
• = available, − = not available
* The switching points can be selected from eight sets of parameters for the respective
lifting unit.
Example: Wilo-Control MS-L 2x8A-T4-DOL-X
Micro Control switchgear for fixed speed pumps
MS
Level-dependent control of pumps
L
Max. number of pumps that can be connected
2x
Max. permissible rated current per pump
8A
Mains connection:
without = 1~230 V/3~400 V
T4
M = 1~230 V
T4 = 3~400 V
Pump activation type: Direct
DOL
1 1 − 2
1 1 − 1
− − 1 −
1 1 1 2
1 1 1 1
− − − 1
• • • •
• • • •
− − − •
− − − •
• • • •
− − • −
en
2 −
1 −
− 1
2 2
1 1
1 1
• •
• •
• •
• •
• •
− •
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