KROHNE IFC 110 Converter - Manual (Page 75)

Part C Special applications, functional checks, service, and order numbers Sect. 7.5
05/2003 IFC 110 F 75
Group S Faults / Symptoms Cause Remedial action
S 1 No reaction from connected Defective signalling Check signalling instrument(s)
(A1, A2, D1, D2) signalling instrument(s) instrument(s) or external or external voltage source and
voltage source replace if necessary.
Internal power supply (E+/E-) Check connections and cables,
is voltage source: shorted, one change if necessary
or several pulse outputs (see Sect. 2.6).
defective Voltage between E+ and E-
approx. 24 V.
Check fuse F8 on the I/O PCB
and replace if necessary
(see Sect. 8.7). If instrument
still does not operate, check
fuses F.. on the I/O PCB for the
status outputs and replace if
necessary:
F2 for terminals A1 and A ⊥
F3 for terminals A2 and A ⊥
F4 for terminals D1 and D ⊥
F5 for terminals D2 and D ⊥.
If it still does not operate, one
or several pulse outputs are
defective.
Replace I/O PCB, see Sect. 8.4.
Control inputs C1 and C2 Change setting, see
are set to ”Hold outputs” or Sect. 4.4 and 5.10,
to ”0” Fct. 1.11 and 1.12
In addition to this, the red Replace signal converter,
LED flashes = Fatal Error see Sect. 8.3.
S 2 Signalling instrument(s) ”All Error” or ”Fatal Error” Check settings in Fct. 1.07-1.10
(A1, A2, D1, D2) is(are) constantly tripped settings and change if necessary,
see Sect. 4.4 and 5.9.
S 3 No reaction of connected Terminal ”A1” not defined as Adjust in Fct. 3.07.
(only for A1) signalling instrument status output
Wrong connection/polarity Observe polarity for driver
capacity 0.1 < I ≤ 0.2 A
see Sect. 6.3.
A1 = ”+” and A ⊥ = ”–”
S 4 Cyclic tripping of Terminal ”A1” not defined as Adjust in Fct. 3.07.
(only for A1) signalling instrument status output
Group C Faults / Symptoms Cause Remedial action
C 1 No function of control inputs Wrong connection Connect properly,
see Sect. 2.5 and 2.6.
Defective control input C or Check connections and cables
voltage source (internal or and change or replace if
external) necessary. Check voltage
source. Check fuses F6 and F7
on I/O PCB and replace if
necessary.
Wrong setting of control inputs Change, see Sect. 4.4 and 5.10.