ABB RELION 620 Series Technical Manual page 713

1MAC504801-IB E
620 series ANSI
Technical Manual
Table 530: Interlocking conditions for enabling the closing (opening) command
Inputs
INT_BYPASS ENA_CLOSE
(ENA_OPEN)
0 = False 0 = False
0 = False 0 = False
0 = False 1 = True
0 = False 1 = True
1 = True 0 = False
1 = True 0 = False
1 = True 1 = True
1 = True 1 = True
Opening and closing operations
The opening and closing operations are available via communication, binary inputs or
LHMI commands. As a prerequisite for control commands, there are enabling and
blocking functionalities for both opening and closing commands (CLOSE_ENAD and
OPEN_ENAD signals). If the control command is executed against the blocking or if the
enabling of the corresponding command is not valid, 52 generates an error message.
Opening and closing pulse widths
The pulse width type can be defined with the Adaptive pulse setting. The function provides
two modes to characterize the opening and closing pulse widths. When the Adaptive pulse
is set to "TRUE", it causes a variable pulse width, which means that the output pulse is
deactivated when the object state shows that the apparatus has entered the correct state.
When the Adaptive pulse is set to "FALSE", the functions always use the maximum pulse
width, defined by the user-configurable Pulse length setting. The Pulse length setting is
the same for both the opening and closing commands. When the apparatus already is in the
right position, the maximum pulse length is given.
The Pulse length setting does not affect the length of the trip pulse.
Control methods
The command execution mode can be set with the Control model setting. The alternatives
for command execution are direct control and secured object control, which can be used
to secure controlling.
The secured object control SBO is an important feature of the communication protocols
that support horizontal communication, because the command reservation and
Control functions
Outputs
BLK_CLOSE CLOSE_ENAD
(BLK_OPEN) (OPEN_ENAD)
0 = False 0 = False
1 = True 0 = False
0 = False 1 = True
1 = True 0 = False
0 = False 1 = True
1 = True 0 = False
0 = False 1 = True
1 = True 0 = False
Section 9
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