Monitoring Of Motor Compartment; Motor Compartment/Sealing Chamber Monitoring; Monitoring The Motor Winding - Wilo Flumen OPTI-TR 20-1 Instrucciones De Instalación Y Funcionamiento

en-US
Internal monitoring devices
Motor compartment
Motor compartment/sealing chamber*
Motor winding**
External monitoring devices
Sealing chamber
6.5.4.1 Monitoring of motor compart-
ment
6.5.4.2 Motor compartment/sealing
chamber monitoring
6.5.4.3

Monitoring the motor winding

28
Installation and electrical connection
DANGER
Risk of explosion due to incorrect connection!
If the monitoring devices are not connected correctly, there is a risk of fatal injury due to
explosion in potentially explosive areas! Connection must always be carried out by a
qualified electrician. If used in potentially explosive areas:
• Connect the thermal motor monitoring via an evaluation relay!
• Deactivation by the temperature limiter must be conducted with an reactivation
lock! It must only be possible to restart the unit when the unlock key has been actu-
ated by hand!
• Connect the external electrode (e.g. sealing chamber control) via an evaluation relay
with an intrinsically safe circuit!
• Note the additional information in the chapter on potentially explosive areas found
in the appendix of these installation and operating instructions!
Overview of possible monitoring devices:
o o o
− − −
• • •
o o o
Legend
− = not available/possible, o = optional, • = standard
* In the Ex version, this monitoring is omitted and not substituted!
** A temperature limiter is in-built as standard. The Ex version as per ATEX also features an
installed temperature controller and limiter.
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.
− − −
o o o
• • •
o o o
−
o
•
o
WILO SE 2019-01