141
Binary I/O capabilities
Chapter 10
Hardware modules
4
Binary I/O capabilities
4.1
Application
Input channels with high EMI immunity can be used as binary input signals to any function. Sig-
nals can also be used in disturbance or event recording. This enables extensive monitoring and
evaluation of the operation of the terminal and associated electrical circuits.
4.2
Design
Inputs are designed to allow oxide burn-off from connected contacts, and increase the distur-
bance immunity during normal protection operate times. This is achieved with a high peak in-
rush current while having a low steady-state current. Inputs are debounced by software.
Well defined input high and input low voltages ensures normal operation at battery supply earth
faults.
The voltage level of the inputs is selected when ordering.
I/O events are time stamped locally on each module for minimum time deviance and stored by
the event recorder if present.
4.3
Technical data
Table 162: IOM, PSM - Binary inputs
Table 163: IOM, PSM - Binary outputs
Inputs
RL24
RL48
RL110
RL220
Binary inputs
IOM: 8, PSM: 4
Debounce frequency
1 Hz (IOM)
Oscillating signal discriminator.
Blocking and release settable between 1-40 Hz
Binary input voltage RL
24/30 VDC
+/-20%
48/60 VDC
+/-20%
110/125 VDC
+/-20%
220/250 VDC
+/-20%
Power dissipation (max.)
0.05 W/input
0.1 W/input
0.2 W/input
0.4 W/input
Function or quantity
Trip and Signal relays
Fast signal relays
Binary outputs
IOM: 10, PSM: 4
IOM: 2
Max system voltage
250 V AC, DC
250 V AC, DC
Test voltage across open contact, 1 min
1000 V rms
800 V DC
Current carrying capacity Continuous
8 A
8 A
1 s
10 A
10 A
Making capacity at
inductive load with
L/R>10 ms
0.2 s
30 A
0.4 A
1.0 s
10 A
0.4 A
Breaking capacity for AC, cos
ϕ
>0.4
250 V/8.0 A
250 V/8.0 A
Содержание REL 551-C1*2.5
Страница 1: ...Technical reference manual ProtectIT Line differential protection terminal REL 551 C1 2 5 ...
Страница 23: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Страница 39: ...30 Technical data Chapter 2 General ...
Страница 63: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Страница 71: ...62 Line differential protection phase segregated DIFL Chapter 4 Line differential protection ...
Страница 89: ...80 Thermal phase overload protection THOL Chapter 5 Current ...
Страница 101: ...92 Event function EV Chapter 7 Logic ...
Страница 160: ...151 Chapter 11 Diagrams Chapter 11 Diagrams This chapter contains the terminal diagrams for the terminal ...
Страница 162: ...153 Terminal diagrams Chapter 11 Diagrams 1 2 Terminal diagram REL 551 C1 Figure 38 REL 551 C1 ...
Страница 163: ...154 Terminal diagrams Chapter 11 Diagrams Figure 39 REL 551 C1 with DC switch ...
Страница 167: ...158 Terminal diagrams Chapter 11 Diagrams ...