Meaning Of The Led; Leds Of The Power Repeaters; Leds Of The Power Supplies; Grounding - Pepperl+Fuchs KLD2-PR-Ex1.IEC. Manual

Power repeater / power supply according to IEC 61158-2
FOUNDATION FieldbusPower supply, connections and operating
7.6

Meaning of the LED

7.6.1 LEDs of the power repeaters

Power repeaters make the following LEDs available:
Table 4: LEDs of the power repeaters
LED
PWR
COM/ERR

7.6.2 LEDs of the power supplies

The field bus power supplies offer the following LEDs:
Table 5: LEDs of the field bus power supplies
LED
PWR
7.7

Grounding

Shielded cables are normally used for the field bus transmission leads. For reasons
of electromagnetic compatibility (EMC), the shield of this transmission line must be
grounded. There are 3 ways this can be done:
1. Hard grounding on both ends of the field bus transmission line and on each field
bus instrument. This requires laying a potential equalization line.
2. Hard grounding on all field devices, capacitive grounding on the power repeater/on
the current supply, separated potential equalization lines for the field and host side
(only if required). Different companies offer terminals with an integrated capacitor
(for example Phoenix Contact, Wago, ...).
3. Hard grounding on the power repeater/on the power supply, capacitive grounding
on all field devices.
The best EMC protection will be achieved with Version 1, the worst with Version 3.
The following illustrations are examples of grounding on a power repeater with intrin-
sically safe interface.
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Color
Green On, power supply voltage present
Red
On, flashing at 2 Hz: Communication error,
On continuously: Hardware error
Color
Green On, power supply voltage present
Status/function
Off: Communication OK
no activity on the field side
(timeout 3 s)
Status/function
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