ANSI05000119-2-en.vsd
IOx-Bly1
IOx-Bly2
IOx-Bly3
IOx-Bly4
+RL2
Æ
Æ
Æ
Æ
ACTIVATE GROUP 4
ACTIVATE GROUP 3
ACTIVATE GROUP 2
ACTIVATE GROUP 1
ACTGRP1
ACTGRP2
ACTGRP3
ACTGRP4
GRP1
GRP2
GRP3
GRP4
ActiveGroup
ACTGRP5
ACTGRP6
GRP5
GRP6
IOx-Bly5
IOx-Bly6
Æ
Æ
ACTIVATE GROUP 5
ACTIVATE GROUP 6
GRP_CHGD
ANSI05000119 V2 EN-US
Figure 633: Connection of the function to external circuits
The above example also includes seven output signals, for confirmation of which group that is
active.
21.3 Test mode functionality TEST
IP1647-1 v2
21.3.1 Functionality
M4803-3 v10
When entering IED test mode there is an option to block all functions. Active test mode is
indicated by a flashing yellow Pickup LED on the LHMI. After that, it is possible to unblock
arbitrarily selected functions from the LHMI to perform required tests.
When leaving TESTMODE, all blockings are removed (except for functions that have their block
input active), and the IED resumes normal operation. However, if during TESTMODE operation,
power is removed and later restored, the IED will remain in TESTMODE with the same protection
functions blocked or unblocked as before the power was removed. All testing will be done with
actually set and configured values within the IED. No settings will be changed, thus mistakes are
avoided.
Forcing of binary input and output signals is only possible when the IED is in IED test mode.
1MRK 502 066-UUS B Section 21
Basic IED functions
1255
Technical manual
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