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Section 11
Testing functionality by secondary injection
11.11.2.1
Function revision history
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revision
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11.11.2.2
Testing the liquid medium supervision for level alarm and level lockout
conditions
1.
Connect the binary inputs to consider liquid level to initiate the alarms.
2.
Activate the binary input SENLEVELQ.
3.
Consider the analogue level input SENLEVEL and set SENLEVEL to a value lower than
LevelAlmLimit or activate binary input signal SENLVLALM, check that outputs LVLALM and ALARM
are activated after a set time delay of tLevelAlarm.
4.
Liquid level lockout input SENLVLLO can be used to set LVLLO.
5.
Ensure that binary input SENLEVELQ is activated and reduce the liquid level input below
LevelLOLimit or activate the binary input signal SENLVLLO, check that LVLLO signal after a set
time delay of tLevelLockOut.
6.
Activate BLOCK binary input and check that the outputs LVLALM, LVLLO, ALARM and LOCKOUT
disappears.
7.
Reset the BLOCK binary input.
8.
Ensure that level lockout condition exists and then activate the reset lockout input RESETLO and
check that the outputs PRESLO and LOCKOUT reset.
11.11.2.3
Testing the gas medium supervision for temperature alarm and temperature
lockout conditions
1.
Activate the binary input SENTEMPQ.
2.
Consider the analogue temperature input SENTEMP and set SENTEMP to a value higher than
TempAlarmLimit, check that outputs TEMPALM and ALARM are activated after a set time delay of
tTempAlarm.
3.
Temperature lockout input SETTLO can be used to set TEMPLO signal.
4.
Ensure that binary input SENTEMPQ is activated and increase further the temperature input above
TempLOLimit, check that the outputs TEMPLO and LOCKOUT appear after a set time delay of
tTempLockOut.
140
Product
History
revision
2.2.1
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2.2.1
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2.2.2
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2.2.3
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2.2.3
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2.2.4
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2.2.4
Binary quality inputs SENLVLQ and SENTEMPQ have been added for pressure and
temperature sensor signals in order to control alarm and lockout signals. Whenever there is
no sensor, the quality of the binary input will be low. If sensor quality is low, then lockout and
alarm signals will get reset.
2.2.5
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© 2017 - 2022 Hitachi Energy. All rights reserved
1MRK 511 409-UUS Rev. K
GUID-751C8C78-891D-423B-825A-0774D0B6C658 v2
GUID-C1F1E6CA-9512-4358-A4E7-84CC3698D156 v4
GUID-189AF20B-D0E3-453D-A787-68F25D0903D3 v2
Phasor measurement unit RES670
Commissioning manual
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