ABB Relion 670 series - Page 855

Time diagrams
M13487-28 v4
There are two timers for supervising of the execute phase, tStartMove and tIntermediate .
tStartMove supervises that the primary device starts moving after the execute output pulse is
sent. tIntermediate defines the maximum allowed time for intermediate position. Figure 446
explains these two timers during the execute phase.
EXE_CL
tStartMove timer
OPENPOS
CLOSEPOS
tIntermediate timer
t1
t2
tStartMove
tIntermediate
if t1 > tStartMove then
"switch-not-start-moving"
attribute in 'cause' is set
if t2 > tIntermediate then
"persisting-intermediate-state"
attribute in 'cause' is set
Close pulse duration
AdaptivePulse = TRUE
en05000097.vsd
IEC05000097 V1 EN-US
Figure 446: The timers tStartMove and tIntermediate
The timers tOpenPulse and tClosePulse are the length of the execute output pulses to be sent to
the primary equipment. Note that the output pulses for open and close command can have
different pulse lengths. The pulses can also be set to be adaptive with the configuration
parameter
AdaptivePulse . Figure 447 shows the principle of the execute output pulse. The
AdaptivePulse parameter will have effect on both execute output pulses.
EXE_CL
CLOSEPOS
EXE_CL
OPENPOS
AdaptivePulse=FALSE
tClosePulse
tClosePulse
AdaptivePulse=TRUE
en05000098.vsd
IEC05000098 V1 EN-US
Figure 447: Execute output pulse
If the pulse is set to be adaptive, it is not possible for the pulse to exceed tOpenPulse or
tClosePulse .
1MRK 502 066-UUS B Section 14
Control
849
Technical manual