Interface
The Sentry Power Distribution Unit has one interface: the Control Screen. This screen displays all data
from the Power Distribution Unit.
Displaying the Control Screen
Displaying the Control Screen of a PTPD requires the use of a terminal or terminal emulation software.
The terminal or emulation software must be configured to support ANSI or VT100, a supported data
rate (300, 1200, 2400, 4800, 9600, 19200, or 38400 BPS)- 8 data bits-no parity-one stop bit and Device
Ready output signal (DTR or DSR).
To display or refresh the Control Screen:
Press
Enter
.
Using the Control Screen
The Control Screen displays all status information for the Sentry Power Distribution Unit. Figure 3.1
shows an example of the Control Screen.
Power Tower PDU Version 1.0b
Location:
Input Current: 0.00 Amps
Alarm Status: No Alarm
Threshold: 30 Amps
Press ‘L’ to edit Location
Press ‘T’ to adjust Threshold
Press ‘Enter’ to refresh
Figure 3.1 Example Control Screen
Control Screen Key Commands
Key Action
L
Pressing L allows editing of the Location field.
T
Pressing T allows editing of the overload threshold.
Enter
Displays or refreshes the Control Screen.
The following sections describe each Control Screen field.
Location field
The editable Location field may contain a descriptive location for the PTPD.
To specify a location:
Type
L
. If you are changing an existing name, press the
Backspace
key to erase characters. Enter a 1-
30 character string and press
Enter
.
Input Current field
The display-only Input Current field indicates the current cumulative input load for the PTPD, in
quarter-ampere granularity. Additionally, the digital LED above the ports on the PTPD indicates the
total input load in half-ampere granularity to 10 amperes and whole ampere granularity above 10
amperes.
Threshold field
The editable Threshold field indicates the PTPD ’s current overload threshold setting. If the Input
Current exceeds the Threshold by 1/8 ampere the PTPD will trigger the audible alarm and the contact-
closure alarm output.
To adjust the overload threshold:
Type
t
. Use the
+
and
–
key to increase or decrease the threshold value in Amperes. The threshold
may be set from 1-31. Press
Enter
.
10
•
Operations (PTPD-x0 models only)
Sentry Power Tower Power Distribution Unit
Installation and Operations Manual