Spencer Bearing Temperature Monitor Control - Manual (Page 2)

The Spencer Turbine Company 600 Day Hill Road Windsor, CT 06095-4706 TEL 800-232-4321 ◆ 860-688-8361 ◆ FAX 860-688-0098
I. Overview
The Bearing Temperature Monitor Control (BTMC) will monitor
the temperature of the inboard and outboard bearings of a
blower or vacuum producer. It will also provide alarm warning
indication and high alarm shutdown. The lower portion of the
panel is divided into three categories: Display, Function, and
Program. The Display group is linked to the 4-digit digital
display (11), indicating which input is being read. The Function
group acts as a status indicator for alarm indication. Finally, the
Program group contains push buttons that allow the user to
interface with the controller.
The BTMC is programmed at Spencer with machine-specific
data, allowing for more precise control in a machine and
controller "matched set" configuration. The Inboard Bearing
and Outboard Bearing set point range will therefore be tailored
to the blower or vacuum producer (e.g., for a bearing with a
nominal operating set point of 220 degrees, a minimum of
200 and a maximum 240 degrees would be the allowable
adjustment range).
II. Applying Power
When power is applied to the BTMC, an initialization sequence
takes place. The controller’s 4-digit display will indicate:
8.8.8.8. followed by 0000, 1111, 2222, 3333, ........ 9999,
SPENCER BtnC. When the initialization sequence is complete,
the Inboard Bearing LED (Light Emitting Diode) (3) will light to
indicate that the inboard bearing is being monitored.
By pressing the Display button "D" (9), the digital display may
be changed from "Inboard Bearing" to "Outboard Bearing" and
vice versa. The corresponding LED (3) or (4) will light up to
indicate which bearing is being monitored. Note: Both bearings
are monitored simultaneously, however only one bearing
may be viewed at a time.
III. Alarm Set Points
The BTMC Universal Controller has two fully programmable
set points. These set points are for the Inboard Bearing (Inlet
end) and Outboard Bearing (Discharge end).
Inboard Bearing:
The Inboard Alarm set point can be adjusted by pressing the
upper Set button (12). The Inboard Alarm LED (2) will illuminate
and the digital display (11) will show the Inboard Alarm set
point in degrees F with the tenths digit flashing. To change the
tenths digit in the set point, press the Up button (10) or the
Down button (7). To change to the units digit, press the
Display button"D" (9) and the units digit will flash. Now press
the Up button (10) or the Down button (7). Pressing the "D"
button (9) shifts the numerical place value to the left, allowing
for a quicker change. To save the new set point and return to
the temperature display (normal operation), press the
Reset/Enter "R/E" button (8).
Outboard Bearing:
The Outboard Alarm set point can be adjusted by pressing the
lower Set button (6). The Outboard Alarm LED (5) will illuminate
and the digital display (11) will show the Outboard Alarm set
point in degrees F with the tenths digit flashing. To change the
tenths digit in the set point, press the Up button (10) or the
Down button (7). To change to the units digit, press the
Display button "D" (9) and the units digit will flash. Now press
the Up button (10) or the Down button (7). Pressing the "D"
button (9) shifts the numerical place value to the left, allowing
for a quicker change. To save the new set point and return to
the temperature display (normal operation), press the
Reset/Enter "R/E" button (8).
Note: If either "Set" button is pressed and no operator
intervention occurs for 30 seconds, the controller will
switch back to normal operation. (The controller will
revert to the last operating display: Inboard Bearing or
Outboard Bearing.)
2
Bearing
Temperature
Monitor
Control
DISPLAY
INBOARD
BEARING
OUTBOARD
BEARING
FUNCTION
INBOARD
ALARM
OUTBOARD
ALARM
PROGRAM
SET D
SET R/E
▲
▼
11
10
9
8
7
6 5 4
3
2
1
12
1. Keypad Identifier
2. Inboard Bearing Alarm LED
(OFF = Normal, Flash = Warning, ON = Shutdown)
3. Inboard Bearing Temperature
Display When LED ON
4. Outboard Bearing Temperature
Display When LED ON
5. Outboard Bearing LED
(OFF = Normal, Flash = Warning, ON = Shutdown)
6. Outboard Bearing “Set” Button
7. “Scroll Down” Button
8. Reset/Enter Set Points
9. Display Select Button
10. “Scroll Up” Button
11. 4-Digit Digital Display (7 Segment LED)
12. Inboard Bearing “Set” Button