ABB IM300-I Operational Manual page 24

The upper display shows "SYS2" word represents 2 system parameters,
including direction of CT wiring and system frequency. As shown in fig. 3-2-29.
The first line shows ABC, used to represent the respective
second row are A, B, C 3-phase CT.
The second line represents CT wiring direction: from left to
right direction A, B, C 3-phase CT, and 0 represents a forward
direction, represents the opposite direction.
The third line represents the system frequency: 50 / 60Hz
optionally, It's the frequency of analog capture when no
voltage inputs..
Screen 7：Relay output mode
The upper display shows "RO-M" word indicates output
mode.
As shown in fig. 3-2-30: output mode 1.
Output mode 1: relay output for the pulse output. That relay
after receiving the closing instructions, the node is closed, a
certain time delay (relay output pulse width, see parameter setting eighth screen) is
disconnected.
Output mode 2: relay output is self-maintained. Ie after receiving the closing
instructions, the output node is closed; after receiving the opening command, output
node disconnected.
Note: The factory default value, the output mode 1.
Screen 8: Relay output pulse width
The upper display shows "RO-T" word indicates relay
output pulse width in milliseconds.
As shown in fig. 3-2-31: Relay output pulse width is
2000 milliseconds.
Note: The factory default value, the relay output pulse width is 2000 milliseconds.
Only when the output mode is selected as mode 1, that relay output pulse type, in order
to enter this page.
IM300 Intelligent Power Monitoring Instrument
Fig 3-2-29 Setting CT wiring system frequency
22
and direction
Fig 3-2-30 Relay output Mode setting
Fig 3-2-31Relay output pulse width