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ABB Distribution Protection Unit 1500R/2000R
IRIG B
Positive
(to Source Terminals
74 73 72 71 70 69 68 67 66 65
AUX COM PORT
Figure 6. Pin to Pin illustration of ABB Protective Daisy-chain link for IRIG B
Software Configuration
Physical interconnection of the devices is only one part of the procedure to allow IRIG B time stamp. The ABB
protective relays must be configured to allow for IRIG B to be enabled. The procedure follows:
1. Start ECP from the DOS operating system for the appropriate device being configured.
2. Highlight the Change Settings Menu.
3. Highlight and Select the Communications Menu.
4. Scroll down to the field " IRIG B".
5. Depress the enter key and select the "ENABLE" selection. Two selections are displayed, ENABLE-mmm
or ENABLE-cc. ENABLE-mmm will timestamp events and display the millisecond time as a number from
1 to 999. ENABLE-cc will timestamp events and display the millisecond time as a decimal fraction of a
second from 1 to 99.
6. Return from the menu item.
7. Download the changed selections to the attached unit.
The unit is now synchronized to the IRIG B time source. All events shall be time stamped to the common IRIG B time
source. The protective relays may also be configured for IRIG B time stamping from the front panel MMI of units which
are equipped with a front panel interface.
13-6
IRIG B
SOURCE
IRIG B Negative
Shield At Ground (one point only)
55 56 57 58 59 60 61 62 63 64
TPU 2000
website:www.abb.com/papd
(to Source Terminals)
AUX COM PORT
Com 3
DPU 2000R
55 56 57 58 59 60 61 62 63 64
AUX COM PORT
Com 3
GPU 2000R
Applications Notes
9/99
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