Version Changes
DTOCn New group signals have been implemented which
combine the trip signals of each DTOC function:
●
(019 215) DTOC1: Trip signal
●
(019 216) DTOC2: Trip signal
●
(019 217) DTOC3: Trip signal
●
(019 218) DTOC4: Trip signal
V<> New group signals have been implemented, indicating
that one or both timers of the over-/ undervoltage
elements has elapsed:
●
(019 220) V<>: tV>/>> elapsed
●
(019 219) V<>: tV</<< elapsed
●
(019 221) V<>: tV</<< elapsed &Vmin
MCM_n The hysteresis on operation thresholds 'MCM_n: Ineg/
Ipos> PSx' has been improved to avoid chattering
starting signals.
CBF_n Function of external triggering has been made more
robust: If only single-pole trigger (e.g. 038.205 CBF_1
Start 3p EXT) is configured, then this input must be
active as long as the CBF timer is running. Otherwise
CBF resets as soon as the trigger input signal resets.
TRMON Implementation of a dedicated Transformer Monitoring
function group that provides inputs for external
transformer protection equipment (3 sets of Buchholz
alarm and trip, insulation alarm).
A5 P634 Version History P634
P634/EN M/R-42-A // P634‑311‑653 A5-37
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