Control During Operation
210
7SS52 V4 Manual
C53000-G1176-C182-3
6.1 Overview
You can use the 7SS52 V4 for the central operation of the bay units. Central operation
means that you can employ DIGSI to manage also the bay units via the central unit.
The operating options are listed in Table 6-1, page 210.
The central operation of your plant requires a PC with DIGSI installed on it to be con-
nected to the central unit. The connection can be made either via the PC port or via
the service port.
Furthermore, DIGSI enables you to connect your PC either directly to the central unit
or to a bay unit to handle your components individually. As another option you can op-
erate your components via the operator panel of the device. The bay unit 7SS525
does not have a control panel and can only be operated via DIGSI.
The description of the operating options in this chapter will mainly focus on the central
operation using DIGSI. The other operating options will only be mentioned in such ex-
ceptional cases where central operation is not possible.
Table 6-1 Overview of the operating options and control options
Operating option DIGSI
logically
to
CU opera-
tor panel
BU opera-
tor panel
Chapter
Reading out information:
• Operational events
• Fault events
• General interrogation
• Spontaneous annunciation
• Statistical counters
CU, BU
CU, BU
CU, BU
CU, BU
BU
X
X
–
–
–
X
X
–
–
X
6.2.1.1, page 214
6.2.1.2, page 216
6.2.1.4, page 218
6.2.1.5, page 218
6.2.1.6, page 219
Reading out measured val-
ues:
CU, BU X X 6.2.2, page 219
Reading out fault data: CU, BU – – 6.2.3, page 221
Controlling device functions:
• Generate oscillographic
record
• Block TRIP command (also
selectively)
• Block breaker failure
protection (also selectively)
• Save annunciations
• Delete annunciations
• Circuit breaker test
• Reset blocking of
differential current
supervision
• Reset blocking of isolator
status supervision
• Busbar blocking - selective
• Trigger initial start and
restart
• Read and set date and time
CU, BU
CU, BU
CU, BU
CU, BU
CU, BU
BU
CU
CU
–
CU
CU
X
X
X
–
X
–
X
X
only BI
–
X
X
X
X
–
X
X
–
–
–
–
X
6.3.1, page 225
6.3.2.1, page 226
6
.3.2.2, page 230
6.3.3.1, page 233
6.3.3.2, page 234
6.3.4, page 235
6.3.5.1, page 237
6.3.5.2, page 238
6.3.2.3, page 232
6.3.6, page 238
6.3.7, page 239
Feeder in/out of service CU, BU X X 6.4, page 244
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