Error
Possible cause
Remedy
Equipment need, spare parts,
information
No temperature output
signal
– Instrument only has one current
output
Refer to nameplate for variant,
change LSCH-x1 module if nec.
LSCH-x2 module,
see chap. 8.2.4 and 8.3.4
– Instrument with
PROFIBUS-PA/-DP
PA-/DP instruments have no
current output!
Chemoclean function
not available
– No relay module (LSR1-x) or nur
LSR1-2 installed
Install LSR1-4 module.
Chemoclean is enabled via release
code supplied by E+H with
Chemoclean upgrade
LSR1-4 module,
see chap. 8.2.4 and 8.3.4
Plus package functions
not available
– Plus package not enabled
(enable with code that depends
on serial number and is received
from E+H with order or Plus
package)
– Plus package upgrade:
code received from E+H
⇒
enter
– Following replacement of
defective LSCH/LSCP module:
first enter instrument serial
number (see nameplate)
manually, then enter code
Detailed description see chap.
8.3.5
No HART
®
communication
– No central HART module
Verify by looking at nameplate:
HART = -xxx5xx und -xxx6xx
Upgrade to LSCH-H1 / -H2 module
– No or wrong DD
device description)
For further information, see
additional Operating Instructions
BA 208C, “HART
®
– Field
communication with Liquisys M
CxM 223 / 253”
– HART interface missing
– Instrument not registered with
HART server
– Load < 230
Ω
– HART receiver (e.g. FXA 191) not
connected via load
– Incorrect instrument address
(Adr. = 0 for single operation,
Adr. > 0 for multidrop operation)
– Line capacity too high
– Line interference
No PROFIBUS
®
communication
– No central PA-/DP module
Verify by looking at nameplate:
PA = -xxx3xx / DP = -xxx4xx
Upgrade to LSCP module
– Wrong SW version
(without PROFIBUS)
For further information, see
additional Operating Instructions
BA 209C, “PROFIBUS-PA/-DP –
Field communication with
Liquisys M CxM 223 / 253”
– Commuwin (CW) II:
CW II version and instrument
SW version incompatible
– No or wrong DD/DLL
– Incorrect baud rate setting for
segment coupler in DPV-1 server
– Incorrect station (master)
address or duplicate address
– Incorrect station (slaves) address
– Bus line not terminated
– Line problems
(too long, cross section too
small; not shielded, screen not
grounded, wires not twisted)
– Bus voltage too low
(bus supply voltage
typ. 24 V DC for non-Ex,
13,5 V DC for Ex)
The voltage at the PA-/DP
connection of the instrument must
be at least 9 V.
No HART or PROFIBUS
communication
– Several instruments on the same
address
Check addresses and reset if
necessary
Maintenance and troubleshooting
Liquisys M CUM 223 / 253
58
Hauser
