Bently Nevada 3300/48 User manual

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3300148
CASE EXPANSION
MONITOR
OPERATION MANUAL
BENTLY
•NEVADA
PART NO. 84417-01

84417-01
NOTICE
Case Expansion Monitor Operation
READ THE FOLLOWING BEFORE INSTALLJNG OR OPERATING EQUIPMENT
Bently Nevada Corporation has attempted to identify areas of risk created by improper installation
and/or operation of this product. These areas of information are noted as WARNING or CAUTION
for your protection and for the safe and effective operation of this equipment. Read all instructions
before installing or operating this product. Pay particular attention to those areas designated by the
following symbols.
IL WARNING
High Voltage present
Could cause shock, burns
or death.
Do Not touch exposed
wires or terminals.
CAUTION
Machine Protection
Will Be Lost
In this document procedures are given only for channel A. Procedures for channel B are similar
except for the obvious substitution of corresponding switches, terminals, and indicators.
SYMBOLS
Special symbols are used in the manual to illustrate specifics in the step by step processes. For
example:
PRESS FLASHING CONNECT DISCONNECT OBSERVE SCREWDRIVER
•
•
•
ii

•Case Expansion Monitor Operation 84417-01
1FOREWORD I
This document is for control room personnel who operate the 3300 Monitoring System. The
procedures are presented in step-by-step graphic format.
RELATED DOCUMENTS
3300 System Overview, 80177
3300 System Installation Instructions, 80172
3300 System Troubleshooting, 80173
3300/10 Power Supply, 80174
3300/01 System Monitor, 80175
3300/48 Case Expansion Maintenance, 84418-01
Dynamic Data Manager System, 46390-01
Keyphasore is a registered trademark of Bently Nevada Corporation
•Proximitor4 is a registered trademark of Bently Nevada Corporation
Document No. 84417 • First Printing: April 1989 • Revision NC: April 1989
Copyright() 1989 Bently Nevada Corporation
All Rights reserved
No Part of this publication may be reproduced, transmitted, stored in a retrieval system nor translated into any human or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise,
with the prior written permission of the copyright owner,
Bently Nevada Corporation
P. O . Box 157
Minden, Nevada 89423 USA
Telephone [phone]
Telemail/Telex 7400983 BNC UC
Fax [phone]
Copyright infringement is a serious matter under
United States of America and Foreign Copyright Laws
•

84417-01 Case Expansion Monitor Operation
Blank Page
•
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iv

•Case Expansion Monitor Maintenance
SECTION
1.
2.
CONTENTS
84418-01
TITLE PAGE
Case Expansion Monitor System 1
Monitor Options 2
3. Programmable options 3
4. Monitor Functions 4,5
5. OK 6
6. Bypass 7
7. Alert and Danger 8
8. Read Direct and Differential Mode 9
9. Read Setpoint Levels 10
•10. Self Test 11-15
Three levels 11
Reading Error Codes 12-14
List of Error Codes 15
INDEX 16,17
•
V

84417-01 Case Expansion Monitor Operation
Blank Page
vi
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•
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Case Expansion Monitor Operation
I1 I CASE EXPANSION MONITOR SYSTEM
13
3300144
CASE EXPANSION
MONITOR
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3300 RACK
CHANNEL A
RECORDER
OUTPUT
ALERT
RELAY
CONTACTS
SIGNAL INPUT
RELAY MODULE
MACHINE CASE
TOP VIEW
84417-01
000
SHAFT CENTER LINE
CHANNEL 8
RECORDER
OUTPUT
DANGER
RELAY
CONTACTS
SLIDING
FOOT
000
FIXED
FOOT
•
1

84417-01
TRANSDUCER AGENCY
FULL SCALE RANGE INPUT ALARM RELAY APPROVAL
3300/48 AA BB CC DD
01 = 0 - 1.0 inches 01 = 1 inch LVDT 00 = NONE 00 = NOT REQUIRED
02 = 0 - 25 mm (9 V/inch) 01 = EPDXY 01 = CSA
03 = 0 - 2 inches 02 = 2 inch LVDT SEALED 02 = BASEEFA
04 = 0 - 50 mm (10 V/Inch) 02 = HERMETI- 03 = FM
05 = 0 - 4 inches 03 = 4 inch LVDT CALLY
06 = 0 - 100 mm (3.5 V/inch)
Case Expansion Monitor Operation
2MONITOR OPTIONS
CASE EXPANSION
MONITOR PART NUMBER
2

•
Monitor Feature Option Monitor Feature Option
First Out Enabled * Danger Mode Latching
Disabled Non-Latching
Alarm Delays 0.1 sec +4 to +20 mA *
1sec Recorder Output +1 to +5 Vdc
3sec * 0to -10 Vdc
6sec
OK Mode Latching Recorder Mode Differential *
/Non-Latching * Direct
Alert Mode .Latching * Upscale Direction Toward Transducer *
Non-Latching Away from Transducer
Meter Response Fast * Danger Bypass Enabled
Time Slow Switch Disabled *
Channel B On * Timed OK Channel Enabled
Off Defeat Disabled *#
Case Expansion Monitor Operation
I3 I PROGRAMMABLE OPTIONS
84417-01
I
* As Shipped from Factory
#Requires Non-Latching OKs
•
3

84417-01 Case Expansion Monitor Operation
4MONITOR FUNCTIONS
CASE EXPANSION - The Case Expansion
Monitor continuously monitors the expansion
of the machine case on both sides of a
machine. The monitor uses signals from two
linear variable differential transducers (LVDT)
mounted on both sides of the machine case.
LVDTs can be oriented so that the expansion
of the machine case is either toward or away
from the LVDT. The Case Expansion Monitor
provides an alarm if the expansion of the
machine case is not the same on each side.
OK - When the output voltage of the LVDTs is
within its upper/lower limits, the transducer is
defined as OK. The OK detection circuit
controls the channel OK LED and the monitor
relay drive to the OK Relay. If the monitor has
the Latching Not OK option chosen, a System
Reset is required to reset the OK function.
OK RELAY - The OK Relay is located on the
Power Input Module. Every channel in the rack
must be OK or bypassed to energize the OK
Relay.
DIRECT AND DIFFERENTIAL MODE - The
Case Expansion Monitor can display the
expansion of the machine case in two ways,
direct or differential. In the direct mode, the
monitor shows the amount of expansion as
measured by the LVDTs on both sides of the
machine. The two measurements are
displayed on the bar graphs for channel A and
B. In the differential mode, the monitor
displays the difference between the two
measured expansions. This difference is
displayed on the bar graph for channel A, and
the bar graph for channel B is blanked. The
monitor can be toggled between direct and
differential modes by pressing the MODE
switch.
ALARM - Since alarms for the case expansion
monitor use differential values, alarm setpoints
may be read when the monitor is in the
differential mode only. Pressing the Alert or
Danger Switch on the front panel of the
monitor causes the corresponding Alert (first-
level alarm) or Danger (second-level alarm) set
points to be displayed on the channel A
bargraph on the front panel. Pressing alarm
switches when the monitor is in direct mode
gives a blank display. When the differential
expansion signal exceeds the preset levels for
the selected time delay, the Alert and Danger
LEDs come on and the appropriate Alert and
Danger alarm relay contacts activate.
FIRST OUT - Separate First Out circuits exist
for Alert and Danger alarms. A monitor with
First Out option selected flashes a channel
alarm LED if that channel was the first channel
in the rack to go into alarm since the last
reset. Pressing the RESET switch
acknowledges the First Out.
ALARM RELAYS - Monitor alarms can be
programmed for either the latching or non-
latching mode. In the non-latching mode, the
alarm resets automatically when the alarm no
longer exists. In the latching mode, the alarm
condition must be reset manually by pressing
the RESET switch on the front panel of the
System Monitor or by closing external Reset
contacts. The alarm will not reset if the alarm
condition still exists.
DANGER BYPASS - Danger Bypass inhibits the
danger relay drive. Other monitor functions
continue. When Danger Bypass is on, the
Bypass LEDs for both channels are on. This
function can be enabled by installing a
programming jumper on the monitor.
4
•
•

•
•
•
Case Expansion Monitor Operation 84417-01
4MONITOR FUNCTIONS [CONT]
BUFFERED OUTPUT - The Case Expansion
Monitor provides the buffered output from the
LVDTs at two locations: at the coaxial cable
connectors on the front panel and at the
terminals on the Signal Input Relay Module.
These connectors can be used to connect the
monitor to external equipment.
RECORDER OUTPUT - The range of recorder
output can be 0 to -10Vdc, +1 to +5Vdc, or
+4 to +20mA depending on which option is
selected. In addition, recorder output can be
in either direct or differential mode. In the
direct mode, the recorder outputs are given for
both channels and is proportional to the
amount of expansion as measured by each
transducer. In the differential mode, the
recorder output is given on channel A only
and is proportional to the absolute value of the
difference between the expansion as measured
by the two LVDTs.
SELF TEST - The monitor has three
categories of self test: power-up, cyclic, and
user-invoked.
Power-up self test is performed
automatically each time the monitor power
is turned on. A series of basic tests and
transducer OK tests are performed.
Cyclic self test is performed automatically
during monitor operation. Errors
encountered during cyclic tests disable the
monitor, and flash an error code on the
LCD bar graph. If the error is intermittent,
the monitor will return to operation, and the
error codes are stored. Error codes can be
read by performing a user-invoked test.
Stored error codes are indicated by OK
LEDs flashing at 5 Hz provided that the
channel is OK.
The User-Invoked test performs a power-up
self test and allows error messages stored
during cyclic tests to be read and cleared.
Stored errors are annunciated by flashing the
OK LEDs at 5 Hz and displaying the error
codes on the front panel LCD bar graph.
Timed Ok Channel Defeat - The Timed OK
channel defeat function prevents faulty
transducer wiring from causing false alarms.
If a transducer is determined to be Not OK,
the channel OK LED goes off, the Channel
Bypass LED comes on, the channel alarming
is disabled, and the OK relay de-energizes. If
achannel's input signal returns to an OK
condition, the channel's OK LED will start
flashing at a 1 Hz rate to indicate that the OK
state is restored, the Bypass LED will go off,
and after a 10 second delay monitoring is
enabled. The Reset switch on the System
Monitor front panel must be pressed to stop
the OK LED from flashing.
5

84417-01
LED DISPLAY
AB
CONDITION
OK
RELAY DRIVE *
•OK •Channel A and B in operating range ON
•OK 0Respective channel A or B transducer
in Not OK condition or bypassed. * OFF *
0OK •
0OK 0
Monitor in self test, or both
transducers in Not OK condition or
bypassed. *
OFF *
(1)
OK 0
Flashing at 5 Hz = error encountered
during cyclic test. To read error messages
see section 10, pages 11-15.
Flashing at 1 Hz = Transducer has been
Not OK since last Reset
ON
15 1 OK
A• — op( —
ODNODIRECT 0
OALR DIFF 0
0-9YRASS--0
Case Expansion Monitor Operation
Note: Since each channel in the system controls the OK Relay, either channel can cause a Not
OK Relay conditon (de-energized relay).
*Not OK channel can be bypassed to restore relay OK conditions
•
•
•
6

•
A
LED DISPLAY
B
CONDITION
•
•BYPASS •
Monitor in DANGER BYPASS MODE
System in POWER UP MODE
User-Invoked Self Test in progress
Both channels bypassed
•BYPASS 0
Channel A or B bypassed
0BYPASS •
Case Expansion Monitor Operation
6I BYPASS
AO--CR—O 8
00140DIRECT 0
OALR DUFF 0
0—BYPASS—.
84417-01
7

84417-01
Danger
AO—OK—O B A0 — OK - 0 8
Alert ODNGDIRECT 0
OALR DIFF 0
.---11110.0DNGDIRECT 0
QALR DIFR 0
LED
LED 0—BYPASS—0—BYPASS-0
LED
DISPLAY
CONDITION ALERT
RELAY
DRIVE
0ALR The difference in
case expansion as
measured by channels
A and B is less
than the alert level,
OFF
•ALR The difference in case
expansion exceeds
the alert level.
ON
CDALR The difference in case
expansion exceeds the
alert level, and this is
the first alert alarm
on the rack.
ON
LED
DISPLAY
CONDITION DANGER
RELAY
DRIVE
0DNG The difference in
case expansion as
measured by channels
Aand B is less
than the danger
level.
OFF
•DNG The difference in case
expansion exceeds
the danger level.
ON
0DNG The difference in case
expansion exceeds the
danger level, and this
is the first danger
alarm on the rack.
ON
Case Expansion Monitor Operation
7ALERT AND DANGER
III
-o
7.N
•
•

•Case Expansion Monitor Operation
jmn3 j READ DIRECT OR DIFFERENTIAL MODE
0.2 INCHES
channel A
LVD Ts
channel B
000
<--->
SHAFT CENTER LINE
00 0
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CASE EXPANSION
MCNITOR
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Differential
Mode LED
Use the Mode Key to toggle between direct and differential mode.
Ve 3300/441
CASE EXPANSION
MONITOR
A411/'.."' e
Otto piaci()
84417-01
The monitor in the illustration on this page indicates that the total expansion of the machine case
on channel A side = 0.6 inches
on channel B side = 0.4 inches
Difference in expansion = 0.2 inches
9

84417-01
I9 I READ SETPOINT LEVELS
Case Expansion Monitor Operation
Note: You can read the setpoints in Differential Mode only. If you try to read the setpoints in
direct mode, the display will be blank.
Alert SetPoint = 0.4 inches Danger SetPoint = 0.6 inches
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CASE EXPANSION
MONITOR
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BUFFEREDTRANSDUCERS
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CASE EXPANSION
MONITOR
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BUFFEREDTRANSDUCERS
•
•
•
10

•Case Expansion Monitor Operation
10
84417-01
SELF TESTS
The three levels of self tests are
power-up - performed only when the monitor is turned on
cyclic - continuously performed by the monitor
user-invoked - performed only when initiated by the user.
3300/48
CASE EXPANSION
MONITOR
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DANGER
MODE
ALERT
A
BUFFEREDTRANSDUCERS
The monitor on this page is giving a signal that
acontinuing error has been detected during a
self test. When a continuing error is detected,
monitoring is stopped until the error is
resolved,
the error code is flashed on the LCD bar
graph and stored in memory,
the Bypass LED comes on and the OK LED
flashes at 5 Hz,
tf the error goes away, monitoring is resumed
and the OK LEDs flash at 5 Hz. The error
code, however, remains stored in the monitor
and may be read by using the user-invoked self
test.
Note:
Although both columns of the
bar graph flash, the error code
is only the sum of the bar
graph segments displayed in
one column. For example the
monitor on this page is
displaying error code 6.
11

84417-01
I10 I SELF TESTS
Case Expansion Monitor Operation
Follow these steps to read the error codes that have been stored in the monitor:
1
1
Flashing OK LEDs show
that error codes are
stored in the monitor.
2
2
Initiate the user-invoked
test by shorting across
the self-test pins behind
the panel. The self-test
pins are labeled ST on
the inner panel
3
((,€3300/46
CASE EXPANSION
MONITOR
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3
The first error code is
displayed on the bar
graph. Read the code
by counting the number
of bars on one sideL
Error code number 6 is
displayed on this
monitor.
12

•Case Expansion Monitor Operation
•
•
84417-01
SELF TESTS
4
4
Press and hold the alert
switch for 1 second to
toggle to the next error
code.
300/4f
CASE EXPANSION
MONITOR
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OALR 01 FF0
BYPASS•
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ALERT
BUFFEREDTRANSDUCERS
5
Read the second stored
error code. This bar
graph is displaying error
code 12.
6« •
-
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6
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CASE EXPANSION
MONITOR
A
OCIM
OALR D FrO
0—BYPASS —0
•
A
BUFFEREDTRNADUCERS
6
Read through all the
other stored codes by
pressing and holding the
alert switch one second.
13
10