Utility Relay Company AC-PRO-II, Instruction Manual

Page: 30 / 56

AC-PRO-II
®
Instruction Manual www.utilityrelay.com
Page 28
Settings can also be changed, reviewed, saved, and printed
using the InfoPro-AC software application.
To Settings
Review Sequence.
Figure 11.5: Settings Screen - Review Button
See Figure 6.2 for the settings review sequence.
See Section 6.4.1 for the time & date Settings.
NOTE: It is important to set the time & date for time
stamping of events.
The AC-PRO-II is capable of communicating over an RS485
network via Modbus RTU protocol. The RS485
communications screen includes the following settings:
Communications Enabled: Set to ON if RS485
communications is desired.
Address: Each trip unit that shares the same twisted pair
must have a unique address. The address identifies each
individual trip unit connected to the same twisted pair.
Note: two trip units can have the same Address as long as
they are not connected to the network via the same twisted
pair cable.
The address is selectable from 1 to 247, in increments of 1.
In most applications, only addresses 1 through 32 will be
used due to the limitations of RS485 communications.
Baud Rate should be selected to match the baud rate of the
master communicating device (i.e. PC, gateway, etc.).
Parity should be set to match the parity of the master
communicating device (i.e. PC, gateway, etc.).
Forced Trip: If enabled, this feature permits tripping of the
breaker via a forced trip command over RS485
communications.
Settings Change Over Communications: If enabled, this
feature permits the user to make settings changes via the
communications network. Otherwise, settings can only be
changed at the AC-PRO-II using the smart buttons or using
the local USB connection.
NOTE: The CT settings can only be changed at the
AC-PRO-II.
See Figure 11.6 for setting options and Section 24.0 for
additional Communications information.
ENTER
RS485 Communications
Enabled
Baud Rate 9600
Parity None
Address 1
ON
The left buttons are for
setting adjustments. These
buttons change depending
on setting options. i.e.
"Up/Down" or "ON/OFF".
ON OFF Back
PWR SET HIST MORE
N:
GF:
xxxxA
xxxxA
xxxxA
xxxxA
xxxxA
xxxVan
xxxVbn
xxxVcn
A:
B:
C:
REV CHNG 485 EXIT
"EXIT" to Exit
**SETTINGS**
"485" to change 485
"CHNG" to Change
"REV" to Review
SAVE
RS485 Communications
Forced Trip
Up Down Back
Options are ENABLE &
DISABLE
Settings Change
Over Comm DISABLE
DISABLE
Note:
Settings changes always
allowed locally and via USB.
Settings over RS-485 allowed
if "Settings Change Over
Comm" is ENABLED.
Enabled
Baud Rate
Parity
Address
ON or OFF
1 - 247
9600 or 19200
Odd, Even, or None
o
o
o
Figure 11.6: Communications Settings
11.24 Settings Review
11.25 Time & Date Settings
11.26 Communications Settings