Endress+Hauser Liquicap M FTI51 Operating Instructions Manual page 31

Liquicap M FTI51
Endress+Hauser
Power supply
• Supply voltage:
• 19 to 253 V , 50 to 60 Hz
AC
• 19 to 55 V
DC
• Power consumption: 1.6 W
• Reverse polarity protection: yes
• Separation voltage: 3.7 kV
• Overvoltage category: II
Signal on alarm
The output signal on power failure or in the event of device failure: relay de-energized
Connectable load
• Loads switched via 2 floating changeover contacts (DPDT)
• maximum values (AC):
• I = 6 A
max
• U = 253 V
max AC
• P = 1 500 VA at cosφ = 1
max
• P = 750 VA at cosφ > 0.7
max
• maximum values (DC):
• I = 6 A at 30 V
max DC
• I = 0.2 A at 125 V
max
• The following applies when connecting a functional low-voltage circuit with double
isolation as per IEC 1010: the sum of voltages of relay output and power supply
maximum 300 V
Do not switch on the supply voltage until you have learned about the device functions
as described in section "Operation option" →  36. This will ensure that you do not
accidentally trigger any processes by switching on the supply voltage.
Connecting the FEI54
F
0.5A
F Fuse
L1 Phase (AC) terminal
L+ The positive (DC) terminal
N Neutral (AC) terminal
L- The negative (DC) terminal
PE Grounding cable
1 Refer also to connectable load
1. Connect the FEI51 according to the schema.
2. Tighten the cable gland.
3. Set the function switch to position 1.
DC
1 2 3 4 5 6 7 8
a u
L1 N PE
NO C NC
L+ L—
1
Electrical connection
r a u r
NO C NC
1
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