![background image](http://html1.mh-extra.com/html/ifm/sd6020/sd6020_operating-instructions-manual_3954159045.webp)
45
UK
Process value
line
Title line
Status LED
Type Description
Output response
Error correction
ERROR Temp
Error
---
Error in temperature
measurement
FOU Check temperature
measurement� Re-
place device�
cr�OL
Critical
over
limit
---
Detection zone*
exceeded
FOU Check flow range /
temperature range�
cr�UL
Critical
under
limit
---
Detection zone* not
reached
FOU Check temperature
range�
---
Short
circuit
OUT1/
OUT2
OUT1
OUT2
Short circuit OUT1
and OUT2
--- Check switching
outputs OUT1 and
OUT2 for short-circuit
or excessive current�
---
Short
circuit
OUT1
OUT1
Short circuit OUT1
--- Check switching
output OUT1 for
short-circuit or exces-
sive current�
---
Short
circuit
OUT2
OUT2
Short circuit OUT2
--- Check switching
output OUT2 for
short-circuit or exces-
sive current�
OL
Over
limit
---
Detection zone*
exceeded�
OU Check flow range /
temperature range�
UL
Under
limit
---
Detection zone* not
reached
OU Check flow range /
temperature range�
Lock via
key
---
---
Setting buttons on
the unit locked,
parameter change
rejected
OU Unlock unit
→ 10.1.3
Lock via
commu-
nication
---
---
Parameter setting
locked via push-
buttons, parameter
setting is active via
IO-Link communi-
cation
OU Finish parameter
setting via IO-Link
communication�