M‑3311A Instruction Book
6–8
4. Set the following PC communications
parameters:
Baud Rate
9600
Parity
None
Data Bits
8
Stop Bits
1
Duplex
Half
5. Open the terminal emulator program on
the PC and open the COM port for the
RS-485 converter.
6. Press a key on the PC keyboard. Verify
that the character pressed shows
temporarily on the display of the relay
and appears on the PC monitor.
7. When communications has been verified,
press
EXIT
. The following is displayed:
COM3 ECHO TEST 2WIRE
-DONE-
8. Close the COM port on the PC and exit
the terminal emulator program.
Clock Test
1. When
COM3 ECHO TEST 2WIRE
is
displayed, press the right arrow button
until the following is displayed:
CLOCK TEST
com3 CLOCK led cal
2. Press
ENTER
. A display similar to the
following is shown:
CLOCK TEST
03-JAN-1998 09:00:00.000
3. Press
ENTER
again to toggle the clock.
If the clock is running, it will stop. If clock
has stopped, it will start. The clock stop
case is shown below.
CLOCK TEST
-CLOCK START-
4. Press
ENTER
and verify the relay
clock is running. A display similar to
the following is shown with the seconds
counting:
CLOCK TEST
03-JAN-1998 09:0035.000
NOTE
: If the unit is removed from service or
is to be without power for long periods
of time, the clock should be stopped to
preserve battery life.
5. Press
ENTER
again to stop the clock.
The following is displayed:
CLOCK TEST
-CLOCK STOP-
6. A display similar to the following is shown
with the seconds stopped:
NOTE:
When the relay clock is stopped, the sec-
onds will be displayed as 80.
CLOCK TEST
03-JAN-09:01:80.000
7. Repeat steps 2 and 3 to restart the clock.
Flash Relay OK LED
The
Flash Relay OK LED
function is provided
to enable or disable the flashing of the
Relay OK
LED
. This function only has effect while the relay
is in normal operating mode and will not be noticed
while in
Diagnostic Mode
.
The operation of this function may be tested by
completing the following steps:
1. When
CLOCK TEST
is displayed, press
the right arrow button until the following
is displayed:
FLASH RELAY OK LED
com3 clock LED cal
2. Press
ENTER
. The following is displayed:
FLASH RELAY OK LED
off ON
▲
CAUTION:
Programming the OK LED to remain
illuminated indefinitely is not recommended. It is
possible that the LED OK would remain illuminated
even if the relay failed.
Summary of Contents for M?3311A
Page 1: ...Instruction Book M 3311A Transformer Protection Relay ...
Page 30: ... 29 M 3311A Transformer Protection Relay This Page Left Intentionally Blank ...
Page 55: ...M 3311A Instruction Book 1 6 This Page Left Intentionally Blank ...
Page 87: ...M 3311A Instruction Book 2 32 This Page Left Intentionally Blank ...
Page 89: ...M 3311A Instruction Book 3 2 Figure 3 2 IPScom Main Screen ...
Page 107: ...M 3311A Instruction Book 3 20 Figure 3 22 Setup System Dialog Screen 2 3 Winding ...
Page 108: ...IPScom 3 3 21 Figure 3 23 Setup System Dialog Screen 4 Winding ...
Page 112: ...IPScom 3 3 25 Figure 3 29 I O Map Screen 4 Winding ...
Page 114: ...IPScom 3 3 27 Figure 3 31 Display All Setpoints Screen 4 Winding ...
Page 119: ...M 3311A Instruction Book 3 32 Figure 3 38 View Sequence of Events Recorder Screen ...
Page 127: ...M 3311A Instruction Book 3 40 This Page Left Intentionally Blank ...
Page 150: ...4 23 System Setup and Setpoints 4 Figure 4 14 Setup Sequence of Events Recorder Dialog Screen ...
Page 163: ...4 36 M 3311A Instruction Book Figure 4 15 IPScom Relay Setup System Dialog Screen 2 3 Winding ...
Page 166: ...4 39 System Setup and Setpoints 4 Figure 4 18 IPScom Selection Screen for Input Settings ...
Page 179: ...4 52 M 3311A Instruction Book Figure 4 28 Example of V Hz Capability and Protection Curves ...
Page 187: ...4 60 M 3311A Instruction Book Figure 4 33 49 Function Overload Curves ...
Page 229: ...4 102 M 3311A Instruction Book Table 4 5 Transformer Connections ...
Page 231: ...4 104 M 3311A Instruction Book Table 4 7 Custom Transformer and CT Configuration ...
Page 243: ...M 3311A Instruction Book 5 6 Figure 5 5 Mounting Dimensions for GE L 2 Cabinet H3 and H4 ...
Page 383: ...A 50 M 3311A Instruction Book This Page Left Intentionally Blank ...
Page 389: ...M 3311A Instruction Book B 6 This Page Left Intentionally Blank ...
Page 393: ...D 2 M 3311A Instruction Book Figure D 1 Volts Hz 24IT Inverse Curve Family 1 Inverse Square ...
Page 394: ...Inverse Time Curves Appendix D D 3 Figure D 2 Volts Hz 24IT Inverse Family Curve 2 ...
Page 395: ...D 4 M 3311A Instruction Book Figure D 3 Volts Hz 24IT Inverse Time Curve Family 3 ...
Page 396: ...Inverse Time Curves Appendix D D 5 Figure D 4 Volts Hz 24IT Inverse Curve Family 4 ...
Page 399: ...D 8 M 3311A Instruction Book Figure D 5 Definite Time Overcurrent Curve ...
Page 400: ...Inverse Time Curves Appendix D D 9 Figure D 6 Inverse Time Overcurrent Curve ...
Page 401: ...D 10 M 3311A Instruction Book Figure D 7 Very Inverse Time Overcurrent Curve ...
Page 402: ...Inverse Time Curves Appendix D D 11 Figure D 8 Extremely Inverse Time Overcurrent Curve ...
Page 439: ...F 28 M 3311A Instruction Book This Page Left Intentionally Blank ...