Wilo T72 Instrucciones De Instalación Y Funcionamiento página 215

Internal monitoring devices
Motor compartment
Terminal room/motor compartment
Motor winding
Motor bearings
Sealing chamber
Leakage chamber
Vibration sensor
External monitoring devices
Sealing chamber
6.5.4.1 Monitoring of motor compart-
ment
6.5.4.2 Monitoring of terminal room/mo-
tor compartment
6.5.4.3 Terminal room, motor compart-
ment and sealing chamber monit-
oring
6.5.4.4 Monitoring of motor winding
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID
Installation and electrical connection
Overview of monitoring devices
• • −
− − •
• • •
− o o
• − −
− − •
− − −
o o o
• = standard-equipped , − = not available, o = optional
All the monitoring devices fitted must always be connected!
Connect the electrodes via an evaluation relay. Relay "NIV 101/A" is recommended for
this. The threshold is 30 kOhm.
Wiring diagram
Electrode connection
DK
The system must be deactivated when the threshold is reached!
Connect the electrodes via an evaluation relay. Relay "NIV 101/A" is recommended for
this. The threshold is 30 kOhm.
Wiring diagram
Electrode connection
DK
The system must be deactivated when the threshold is reached!
Connect the electrodes via an evaluation relay. Relay "NIV 101/A" is recommended for
this. The threshold is 30 kOhm.
Wiring diagram
Electrode connection
DK
The system must be deactivated when the threshold is reached!
With bimetallic strips
Directly connect bimetallic strips to the switchgear or via an evaluation relay.
Connection values: max. 250 V (AC), 2.5 A, cos φ = 1
Wiring diagram for bimetallic strip
Temperature limiter
20, 21 Bimetallic strip connection
Temperature controller and limiter
High temperature connection
21
Centre terminal
20
Low temperature connection
22
− − −
• • •
• • •
o o o
− − •
− − •
o o o
o o o
en
−
•
•
o
•
•
o
o
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