Connection Options - Endress+Hauser Levelflex FMP56 Operating Instructions Manual

Levelflex FMP56, FMP57
Connection examples for the switch output
For HART devices, the switch output is available as an option. See product structure,
feature 20: "Power Supply, Output", option B: "2-wire; 4-20mA HART, switch output"
Devices with PROFIBUS PA and FOUNDATION Fieldbus always have a switch output.
3+
4-
Connection of a relay
å 6
Suitable relays (examples):
• Solid-state relay: Phoenix Contact OV-24DC/480AC/5 with
mounting rail connector UMK-1 OM-R/AMS
• Electromechanical relay: Phoenix Contact PLC-RSC-12DC/21
7.2

Connection options

7.2.1 Cable specification
PROFIBUS
Use a twisted, screened two-wire cable, preferably cable type A.
For further information on the cable specifications, see Operating Instructions BA00034S
"Guidelines for planning and commissioning PROFIBUS DP/PA", PNO Guideline 2.092
"PROFIBUS PA User and Installation Guideline" and IEC61158-2 (MBP).
7.2.2 Cable diameter and cross-section of the strands
Type of protection
• Standard
• Ex ia
• Ex ic
• Ex tD
• Ex nA
• FM approval
• CSA approval
Endress+Hauser
+
-
Cable gland Admissible cable
diameter
Plastics M20x1,5 5 to 10 mm (0.2 to 0.39
in)
Metal M20x1.5 7 to 10 mm (0.28 to
0.39 in)
A0015909
Connection of a digital input
å 7
1 Pull-up resistor
2 Digital input
Admissible cross-section of the
strands
0.5 to 2.5 mm
Electrical connection
+
1
2
3+
4-
A0015910
2
(20 to 14 AWG)
27