I.B. 17555C
Effective November 1999
Page 28
The alphanumeric display shows the time to trip, and the
numeric display shows the magnitude of the trip current.
The Test Mode can be exited as follows:
1.
Press and release the Test Mode On/Off pushbutton.
2.
Press and release the Reset pushbutton.
3.
Perform no testing activity for approximately 2 1/2
minutes.
3-4
COMMUNICATIONS FUNCTION
The communication function can deliver all the data and
flags that can be viewed locally on the relay to a host
computer equipped with an appropriate software pack-
age. In addition, the host computer can initiate a “Com-
munication Trip” and “Communication Close” control type
command.
The Digitrip 3000 Protective Relay has a built in INCOM
communication network port that is available on terminals
1 and 2 of TB2 (Figure 3-1). The device Address and the
desired BAUD Rate are programmed using the following
pushbuttons located on the front panel: “Select Tests,”
‘Test,” “Raise” and “Lower’ and “Select Settings.”
3-4.1 ADDRESS AND BAUD RATE SETTINGS
To enter the mode that permits changing the device
Address and/or BAUD Rate, depress and hold the ‘Test”
Pushbutton and then depress and release the “Select
Tests” Pushbutton. The BAUD Rate and Address respec-
tively will appear in the Settings/Test Time/Trip Cause
Window. The “Test” Pushbutton can now be released.
The last digit on the right flashes. Press and release
“Select Settings” Pushbutton to shift the flashing portion
of the display horizontally from the lowest address digit
on the right to the last display on the left, which is the
BAUD rate. The BAUD rate will flash with an “H” (High
BAUD Rate = 9600) or an “L” (Low BAUD Rate = 1200).
To increase or decrease the flashing digit or flashing
baud rate, press and release the “Raise” or “Lower’ Push-
buttons. When completed, depress the “Save Setpoints”
Pushbutton to save and exit this mode. Table 3.2 outlines
display possibilities and their meanings.
Fig. 3-10 Programming Sequence Preview
Summary of Contents for Cutler-Hammer Digitrip 3000
Page 18: ...I B 17555C Effective November 1999 Page 12 Fig 2 1 Typical Communications Wiring Diagram...
Page 27: ...I B 17555C Effective November 1999 Page 21 Fig 3 1 Digitrip 3000 Typical Wiring Diagram...
Page 36: ...I B 17555C Effective November 1999 Page 30 Fig 3 11 Local Programming Sequence Flow Chart...
Page 37: ...I B 17555C Effective November 1999 Page 31...
Page 52: ...I B 17555C Effective November 1999 Page 46 Fig 7 5 Short Delay Phase Curves SC 5394 92B...
Page 54: ...I B 17555C Effective November 1999 Page 48 Fig 7 7 Instantaneous Curves SC 5396 92B...
Page 59: ...I B 17555C Effective November 1999 Page 53 Fig 7 12 Short Delay Ground Curves SC 5403 92B...
Page 60: ...I B 17555C Effective November 1999 Page 54 Fig 7 13 ANSI Moderately Inverse Curves SC 6685 96...
Page 61: ...I B 17555C Effective November 1999 Page 55 Fig 7 14 ANSI Very Inverse Curves SC 6686 96...
Page 62: ...I B 17555C Effective November 1999 Page 56 Fig 7 15 ANSI Extremely Inverse Curves SC 6687 96...
Page 63: ...I B 17555C Effective November 1999 Page 57 Fig 7 16 IEC A Moderately Inverse Curves SC 6688 96...
Page 64: ...I B 17555C Effective November 1999 Page 58 Fig 7 17 IEC B Very Inverse Curves SC 6689 96...
Page 65: ...I B 17555C Effective November 1999 Page 59 Fig 7 18 IEC C Extremely Inverse Curves SC 6690 96...
Page 66: ...I B 17555C Effective November 1999 Page 60 Fig 7 19 IEC D Flat Curves SC 6691 96...
Page 68: ...I B 17555C Effective November 1999 Page 62...
Page 73: ...I B 17555C Effective November 1999 Page A5 Fig A 7 DT3001 Typical Wiring Diagram...
Page 76: ...I B 17555C Effective November 1999 Page A8...
Page 81: ...I B 17555C Effective November 1999 Page B5 Fig B 2 Digitrip 3010 3020 Dimensions Inches...
Page 83: ...I B 17555C Effective November 1999 Page B7 Fig B 3 Digitrip 3010 3020 Typical Wiring Diagram...
Page 89: ...I B 17555C Effective November 1999 Page B13...
Page 90: ...I B 17555C Effective November 1999 Page B14...
