ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-250
Explanation of measurements:
Rfr:
Ground fault resistances between 0 and 29.8 k
W can be de-
termined and displayed. A display of 29.9 k
W or 30 kW indi-
cates a ground fault resistance >29.8 k
W. A value of 29.9 kW
or 30 kW is displayed when there is no ground fault.
A whole number fault code between 100 and 111 is displayed
in cases when it is not possible to compute the ground fault
resistance.
· 100.0 means no injection for more than 5 s.
· 101.0 means incorrect frequency. Either the injection fre-
quency on the REX 010 or the rated frequency on the
REG 316*4 is incorrectly set.
· 102.0 means external open-circuit.
· 109.0 means that both the binary inputs ‘AdjRErInp’ and
‘AdjCoupCInp’ are enabled.
· 111.0 means that the binary input ‘AdjRErInp’ is enabled.
No other codes will normally be generated, but if they are,
they are a diagnostic aid for the service people.
Ck":
When the input ‘AdjCoupCInp’ is enabled, 133.00 is dis-
played initially until the coupling capacitor has been com-
puted. This can take a maximum of 10 s after which the value
measured for C is displayed.
During normal operation, the value entered for the coupling
capacitor C via the HMC is displayed.
REr":
When the input ‘AdjRErInp’ is enabled, the error code 133.00
is displayed initially until the resistance has been calculated.
It can take up to 10 s before the value measured for REr is
displayed. The value measured for Rf is 97.0.
During normal operation, the value entered for REr on the
HMC is displayed.
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