Monitoring - GE B90 Instruction Manual

SPECIFICATIONS
Time delay:
FLEX STATES
Number:
Programmability:
NON-VOLATILE LATCHES
Type:
2 Number:
Output:
Execution sequence:
USER-PROGRAMMABLE LEDs (Enhanced and standard front panels)
Number:
Programmability:
Reset mode:
LED TEST
Initiation:
Number of tests:
Duration of full test:
Test sequence 1:
Test sequence 2:
Test sequence 3:
USER-DEFINABLE DISPLAYS (Enhanced and standard front panels)
Number of displays:
Lines of display:
Parameters:
Invoking and scrolling:
CONTROL PUSHBUTTONS (Enhanced and standard front panels)
Number of pushbuttons:
Operation:
USER-PROGRAMMABLE PUSHBUTTONS (Optional)
Number of pushbuttons:
Mode:
Display message:
Drop-out timer:
Autoreset timer:
Hold timer:
DIGITAL ELEMENTS
Number of elements:
Operating signal:
Pickup delay:
Dropout delay:
Timing accuracy:

2.5.3 Monitoring

OSCILLOGRAPHY
Maximum records:
Sampling rate:
2-18
0 to 65535 ms in steps of 1
up to 256 logical variables grouped under 16 Modbus addresses
any logical variable, contact, or virtual input
set-dominant or reset-dominant
16 (individually programmed)
stored in non-volatile memory
as input prior to protection, control, and FlexLogic
48 plus trip and alarm
from any logical variable, contact, or virtual input
self-reset or latched
from any contact input or user-programmable condition
3, interruptible at any time
approximately 3 minutes
all LEDs on
all LEDs off, one LED at a time on for 1 s
all LEDs on, one LED at a time off for 1 s
16
2 × 20 alphanumeric characters
up to 5, any Modbus register addresses
keypad, or any user-programmable condition, including pushbuttons
7
drive FlexLogic operands
12 on standard front panel
16 on enhanced horizontal front panel
6 on enhanced vertical front panel
16 on graphical front panel (8 physical pushbuttons, 8 graphical interface pushbuttons)
self-reset, latched
2 lines of 20 characters each
0.00 to 60.00 s in steps of 0.05
0.2 to 600.0 s in steps of 0.1
0.0 to 10.0 s in steps of 0.1
48
any FlexLogic operand
0.000 to 999999.999 s in steps of 0.001
0.000 to 999999.999 s in steps of 0.001
±3% or ±4 ms, whichever is greater
64
64 samples per power cycle
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION