2-8 BE1-951 Quick Start 9328900990 Rev L
7.) Can I make logic settings from the front panel?
No, the front panel cannot program logic settings. Logic settings must be programmed using the
ASCII command interface or BESTCOMS communication software.
8.) Since the BE1-951 is a programmable device, what are the factory defaults?
The factory default logic is BASIC-OC logic. Default settings are shown with each function in the
instruction manual. For input or output default settings see Section 3, Input and Output
Functions. For protection and control functions, see Section 4, Protection and Control. The
default settings are also embedded in the BE1-951 spreadsheets that are available from the
Basler Electric web site, http://www.basler.com, in the Download Section under Software Tools.
9.) Does the BE1-951 have a battery installed as the back-up power source for the internal
clock on loss of power?
As an option, battery backup can be included. All relays come standard with a 12-hour ride-
through capacitor.
10.) Why do I keep getting access conflict errors when I attempt communication with the
relay?
If you try to gain access to more than one port at a time, an access conflict results. The relay
has three communication ports: COM 0, COM 1, and COM 2. The front panel HMI and RS-232
port are considered to be the same port and are designated COM0. The rear RS-232 port is
designated as COM 1 and the rear RS-485 port is designated as COM 2. If access at the front
panel HMI has been obtained, access cannot be gained at another port. The front RS-232 port
can still be accessed because the HMI and front RS-232 port are considered to be the same
port (COM 0). Access needs to be gained only when a write command to the BE1-IPS100 is
required (control or setting change or report reset). When access is gained through a port, a
five-minute timer starts counting down to zero. When port activity occurs, the timer resets to five
minutes and resumes counting down. If no activity is seen for the duration of the five-minute
timer, access is withdrawn and any unsaved changes are lost. When activity at a port is no
longer required, access should be terminated with the Exit command. When using BESTCOMS,
the Access and Exit commands are executed for you. Obtaining data or reports from the relay
never requires password access.
11.) Why doesn't the trip LED behave as expected when the relay picks up and trips?
Why don't the targets work properly?
If a protective element is tripping at the desired level, but the targets and fault records aren't
behaving as expected, two commands should be checked. The SG-TARG command needs the
protective element (function) enabled so that targets are logged. The SG-TRIGGER command
must be programmed with the correct pickup logic expression and trip logic expression to
initiate fault records. Section 6, Reporting and Alarm Functions, Fault Reporting, for detailed
information about programming these commands.
Trip LED behavior also depends on the pickup and trip expressions of the SG-TRIGGER
command. When the SG-TRIGGER pickup expression is TRUE and the trip expression is
FALSE, the Trip LED flashes. In other words, a flashing LED means that a protection element is
in a picked up state and is timing toward a trip. When both the pickup and trip expression is
TRUE, the Trip LED lights steadily. The Trip LED also lights steadily when neither expression is
TRUE but latched targets exist. When resetting a target, the Trip LED will not turn off if the fault
is still present. The truth table of
Table 2-2 serves as an aid to interpreting Trip LED indications.
To Next Page
Loading...
Need help?
General