Digital Input Test; Testing Protection Functions - ABB REM 610 Operator's Manual

Motor protection relay
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1MRS755538
5.5.
5.6.
Motor Protection Relay
Operator's Manual - ANSI version
Table 5.4.-1
Function test (Continued)
Number
Function
12
Trip of element 46
13
Trip of element 46R
14
Motor start up
15
External trip
16
Alarm of element 49/38-1
17
Trip of element 49/38-1
18
Alarm of element 49/38-2
19
Trip of element 49/38-2
0
IRF
It is also possible to test the output contacts via serial communication
by using the O parameters.

Digital input test

This section describes how the availability of signals connected to the digital inputs
can be tested.
To monitor the status of the digital inputs, navigate in the HMI menu as follows:
1. Press an arrow button to access the main menu.
to select CONFIGURATION in the main menu and press
2. Use
or
cursor is at the first menu item, FUNCTION TEST/DI. Press
the test menu.
to select DI STATUS and press
3. Use
or
4. Use
and
to monitor the state of the other four digital inputs.
5. Press
to return the display to the idle mode.
It is also possible to read the state of the digital inputs via serial
communication.

Testing protection functions

The short-circuit and ground-fault protection functions in the relay can be tested
with the setting values used during normal operation. If other settings are used
during testing, make sure that the original settings are re-entered after the test is
completed.
The test is performed as a secondary test, by injecting current to the current
energizing inputs. To enable secondary testing without accidentally blocking other
relays or tripping circuit breakers in the system, the relay has to be disconnected.
REM 610
REM 610
. The
again to enter
to see the status of DI1.
55

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