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 15
4.4 Inputs and outputs
Inputs/outputs
Control MS-L 1... Control MS-L 1...-O Control MS-L 1...-LS Control MS-L 2... Control MS-L 2...-O Control MS-L 2...-LS
Inputs
Float switch for level detection 1 1 − 2 2 −
Float switch for detecting the high water level 1 1 − 1 1 −
Analogue input 4...20 mA for level detection with rod float sensor − − 1 − − 1
Input for thermal winding monitor with bimetallic strip. 1 1 1 2 2 2
Outputs
Potential-free changeover contact for the collective fault signal 1 1 1 1 1 1
Potential-free changeover contact for an external alarm signal − − − 1 1 1
Key
1/2 = number of inputs and outputs, − = not available
NOTICE! PTC sensors cannot be connected!
Output contact load:
• Minimum: 12 VDC, 10 mA
• Maximum: 250 VAC, 1 A
4.5 Functions The switchgear is equipped with the following functions. All functions are switched off at
the factory. The functions must be switched on as required.
Inputs/outputs
Control MS-L 1... Control MS-L 1...-O Control MS-L 1...-LS Control MS-L 2... Control MS-L 2...-O Control MS-L 2...-LS
Internal buzzer • • • • • •
Pump kick • • • • • •
Service interval indicator − − − • • •
Monitoring operating parameters − − − − − •
Follow-up time • • • • • •
Adjustable switching points for pump ON and high water* − − • − − •
Key
• = available, − = not available
* The switching points can be selected from eight sets of parameters for the respective lift-
ing unit.
4.6 Type key
Example: Wilo-Control MS-L 2x4kW-DOL-T4-X
MS Micro Control switchgear for fixed speed pumps
L Level-dependent control of pumps to drain objects
2x Max. number of pumps that can be connected
4kW Max. permissible rated power (P
2
) per pump
DOL Activation type of connected pump: Direct
T4 Mains connection version:
• Without: 3P+N+PE
• T4: 3P+PE