Trouble-Shooting - Endress+Hauser minicap FTC 262 Bedienungsanleitung

e Trouble-shooting
24
Fault Reason
Does not switch No power
(green LED does not light up)
ε
Dielectric
r
of material too low
Poor ground connection
Probe touches vessel wall
Probe touches outlet cone
Too much build-up on probe tip
Probe pulled down
Electronics in probe or
housing are defective
AC version:
Contacts melted together
(after short-circuiting)
Switches Minimum- / Maximum-
incorrectly fail-safe mode set wrongly
Sporadic faulty DC version:
switching Output overloaded
Probe oscillates
Filling curtain sometimes
touches probe
Probe touches material building
on vessel wall
Water in housing
Remedy
Check power
Change switch settings on electronic
insert
Check ground connection to silo
or metal parts
Straighten rope
Shorten rope (see "Accessories")
or select another mounting point
Change switch settings on electronic
insert or clean probe
Replace FTC 262;
red LED select another mounting point
flashes
Replace FTC 262
Replace FTC 262;
connect a fuse into contactor circuit
Set correct mode at electronic insert
Reduce load, (cable) capacitance
Tension probe
Redirect curtain or
select another mounting point
Clear vessel wall of building-up or
select another mounting point
Screw cover and cable gland tight
Endress+Hauser