Siemens siprotec 7SA522 User Manual

2 Functions
328
7SA522 Manual
C53000-G1176-C155-3
Figure 2-146 Logic diagram for trip circuit monitoring with one binary input
2.19.2.2 Setting Notes
General The number of circuits to be monitored was set during the configuration in address
 7ULS&LU6XS (Section 2.1.1.2). If the trip circuit supervision is not used at
all, the setting 'LVDEOHG must be applied there.
The trip circuit supervision can be switched 21 or 2)) in address  )&7
7ULS6XSHUY. The number of binary inputs that shall be used in each of the moni-
tored circuits is set in address  1RRI%,. If the routing of the binary inputs
required for this does not comply with the selected supervision mode, the alarm
´7ULS&[3URJ)$,/µ is given (with identification of the non-compliant circuit).
Monitoring with
One Binary Input
The alarm for monitoring with two binary inputs is always delayed by approx. 1 s to
2 s, whereas the delay time of the alarm for monitoring with one binary input can be
set in address  $ODUP'HOD\. 1 s to 2 are sufficient if only the 7SA522 device
is connected to the trip circuits as the trip circuit supervision does not operate during
a system fault. If, however, trip contacts from other devices are connected in parallel
in the trip circuit, the alarm must be delayed such that the longest trip command dura-
tion can be reliably bridged.
2.19.2.3 Settings
2.19.2.4 Information List
Addr. Parameter Setting Options Default Setting Comments
4001 FCT TripSuperv. ON
OFF
OFF TRIP Circuit Supervision is
4002 No. of BI 1 .. 2 2 Number of Binary Inputs per trip
circuit
4003 Alarm Delay 1 .. 30 sec 2 sec Delay Time for alarm
No. Information Type of In-
formation
Comments
6854 >TripC1 TripRel SP >Trip circuit superv. 1: Trip Relay
6855 >TripC1 Bkr.Rel SP >Trip circuit superv. 1: Breaker Relay
6856 >TripC2 TripRel SP >Trip circuit superv. 2: Trip Relay
6857 >TripC2 Bkr.Rel SP >Trip circuit superv. 2: Breaker Relay
6858 >TripC3 TripRel SP >Trip circuit superv. 3: Trip Relay
6859 >TripC3 Bkr.Rel SP >Trip circuit superv. 3: Breaker Relay
6861 TripC OFF OUT Trip circuit supervision OFF

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English