Siemens SIPROTEC 7SS523 V3.2 Manual page 220

Control During Operation
6.1 Overview
204
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 204.
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
Reading out information:
• Operational events
• Fault events
• General interrogation
• Spontaneous annunciation
• Statistical counters
Reading out measured val-
ues:
Reading out fault data:
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
Feeder in/out of service
DIGSI CU opera-
logically tor panel
to
CU, BU X
CU, BU X
CU, BU –
CU, BU –
BU –
CU, BU X
CU, BU –
CU, BU X
CU, BU X
CU, BU X
CU, BU –
CU, BU X
BU –
CU X
CU X
– only BI
CU –
CU X
CU, BU X
BU opera- Chapter
tor panel
X 6.2.1.1, page 208
X 6.2.1.2, page 209
– 6.2.1.4, page 211
– 6.2.1.5, page 212
X 6.2.1.6, page 212
X 6.2.2, page 213
– 6.2.3, page 215
X 6.3.1, page 218
X 6.3.2.1, page 219
X 6.3.2.2, page 222
– 6.3.3.1, page 225
X 6.3.3.2, page 226
X 6.3.4, page 227
– 6.3.5.1, page 229
– 6.3.5.2, page 230
– , page 225
– 6.3.6, page 230
X 6.3.7, page 231
X 6.4, page 236
7SS52 V4 Manual
C53000-G1176-C182-1