Wiring Proline Promag 53 MODBUS RS485
42 Endress+Hauser
4.2 Connecting the remote version
4.2.1 Connecting the sensor
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Warning!
• Risk of electric shock! Switch off the power supply before opening the device. Do not install or
wire the device while it is connected to the power supply. Failure to comply with this precaution
can result in irreparable damage to the electronics.
• Risk of electric shock! Connect the protective conductor to the ground terminal on the housing
before the power supply is applied.
"
Caution!
• Only sensors and transmitters with the same serial number can be connected to one another.
Communication problems can occur if the devices are not connected in this way.
• Risk of damaging the coil driver. Always switch off the power supply before connecting or
disconnecting the coil cable.
Procedure
1. Transmitter: Remove the cover from the connection compartment (a).
2. Sensor: Remove the cover from the connection housing (b).
3. Feed the signal cable (c) and the coil cable (d) through the appropriate cable entries.
"
Caution!
Route the connecting cables securely (see "Connecting cable length" → ä 20).
4. Terminate the signal and coil current cable as indicated in the table:
Promag W, P → Refer to the table → ä 44
Promag H → Refer to the "Cable termination" table → ä 45
5. Establish the wiring between the sensor and the transmitter.
The electrical wiring diagram that applies to your device can be found:
• In the corresponding graphic:
→ å 28 (Promag W, P); → å 29 (Promag H)
• In the cover of the sensor and transmitter
!
Note!
The cable shields of the Promag H sensor are grounded by means of the strain relief terminals
(see also the "Cable termination" table → ä 45)
"
Caution!
Insulate the shields of cables that are not connected to eliminate the risk of short-circuits with
neighboring cable shields inside the connection housing.
6. Transmitter: Screw the cover on the connection compartment (a).
7. Sensor: Secure the cover on the connection housing (b).
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