GUID-A8C2EB5B-F105-4BF7-B1EC-77D4B8238531 V1 EN
Figure 458: Travel time calculation when Travel time Clc mode is “From Cmd to Pos”
There is a time difference t
1
between the start of the main contact opening and the
OPEN_CB_EXE command. Similarly, there is a time gap t
2
between the time when the
POSOPEN auxiliary contact opens and the main contact is completely open. Therefore, to
incorporate the times t
1
and t
2
, a correction factor needs to be added with t
open
to get the
actual opening time. This factor is added with the Opening time Cor (= t
2
- t
1
) setting. The
closing time is calculated by adding the value set with the Closing time Cor (t
4
- t
3
) setting
to the measured closing time.
The last measured opening travel time T_TRV_OP and the closing travel time
T_TRV_CL are available in the monitored data view on the LHMI or through tools via
communications.
Alarm limit check
When the measured opening travel time is longer than the value set with the Open alarm
time setting, the TRV_T_OP_ALM output is activated. Respectively, when the measured
closing travel time is longer than the value set with the Close alarm time setting, the
TRV_T_CL_ALM output is activated.
It is also possible to block the TRV_T_CL_ALM and TRV_T_OP_ALM alarm signals by
activating the BLOCK input.
Section 7 1MAC059074-MB A
Condition monitoring functions
884 615 series ANSI
Technical Manual
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