Bently Nevada 3300/20 User manual

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DOCUMENT NO. 501
3300/20
DUAL
THRUST POSITION
•MONITOR
OPERATION MANUAL
GENTLYr\
1. NEVADA \_,)
REV.
A
B
(11
1)A II
21154/ 8MARX)
8.1NAR89
•••.1,...
0•Rigiq•I •

NOTICE
READ THE FOLLOWING BEFORE INSTALLING 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 in—
formation 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.
WARNING
High voltage present
could cause shock
burns or death
Do not touch exposed
wires or terminals
lanwroJli
Machine Protection Could
Be Discontinued
IN THIS DOCUMENT PROCEDURES ARE GIVEN ONLY FOR ONE CHANNEL.
PROCEDURES FOR OTHER CHANNELS ARE SIMILAR EXCEPT FOR THE
OBVIOUS SUBS TI TUTION OF. CORRESPONDING SWI TCHES, TERMINALS,
AND INDICA TORS.
SYMBOLS
Special symbols are used in the manual to illustrate specifics
step process. For example:
PRESS
(4)(11
FLASHING OBSERVE
in the step—by—
SCREWDRIVER
4

Dual Thrust Monitor Operation 80178-01
•
FOREWORD
This document is for control room personnel who operate the 3300 Monitoring System. The procedures arc presented
in step-by-step graphic format.
RELATED DOCUMENTS
• 33(X) System Overview, 801.71
•33(X) System Installation Instructions, 80172
•3300 System Troubleshooting, 80173
•3300110 Power Supply, 80174
•:3300/0.1 System Monitor, 80175
• 33(X) Dual Thrust Monitor Maintenance, 80176-01
•Dynamic Data Manager System, 46390-01
•
•
Keyphasor® is a registered trademark of Bently Nevada Corporation
l'roximitor® is a registered trademark of Bently Nevada Corporation
Document No. 80178 • First Printing: January 1988
Copyright © 1987 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, without the prior written permission of the copyright owner,
Bently Nevada Corporation
P. O . Box 157
Minden, Nevada 89423 USA
Telephone : [phone]
Telex: 7400983 BNC UC
Fax: [phone]
Copyright infringement is a serious matter under
United States of America and Foreign Copyright Laws
iii

80178-01 Dual Thrust Monitor Operation
Blank Page
iv

Dual Thrust Monitor Operation 80178-01
•CONTENTS
TITLE SECTION
DUAL THRUST MONITOR SYSTEM
MONITOR FUNCTIONS 2
MONITOR OPTIONS 3
PROGRAMMABLE OPTIONS 4
OK 5
BYPASS 6
ALERT 7
DANGER
MONITOR RANGES 9
READ CHANNEL THRUST POSITION 10
•READ GAP VOLTAGE 1 I
READ ALERT SETPOINT LEVELS 12
READ DANGER SETPOINT LEVELS 1 3
SELF TEST 14
•

80178-01 Dual Thrust Monitor Operation
Blank Page
vi

Dual Thrust Monitor Operation 80178-01
•
1DUALTHRUSTMONITORSYSTEM
3300/20
DUALTHRUSTMONITOR
OK
DANGER
ALERT (...)B
BYPASS C)
II
DANGER IT ALERT
li
GAP
A
BUFFEREDTRANSDUCERS
rfn
66
5
6O
n
66
3300 RACK
.E-11
CHANNE I A
RECORDER
1OUTPUT
ALE!'
3E1.
C:OrJTACT --
PROXIM1TOR
PRO-xlMimp
IVA1101woo11141110
0
rliA -
NEP MVO
fyrrrur;
c:.,1cUAL INPUT A
MODULE
(PEAR or RA( [..)
CHANNI,L. A
PROE3E
---
1:1 I_
CHANNEL B
PROBE
(.11A1,111111
121:Lf.)r,[1,1•P
U1111'11!
BANY,EN
P11 AR
,CNN TAU1S
UHL)
IANtlir.1 Li
.*;" •
1

80178-01 Dual Thrust Monitor Operation
2MONITORFUNCTIONS
DUAL THRUST POSITION - Thrust position is the average position, or change in position, of a rotor in the
axial direction with respect to some fixed reference. The Dual Thrust Position Monitor provides continuous
thrust position monitoring on 2 channels (A & B) for redundant protection. Normal thrust direction can be
toward or away from the probe face. AND voting logic ensures that failure of one channel will not give a false
Danger alarm. OR voting logic allows for two independent thrust channels in less critical applications.
PROBE GAP VOLTAGE - Probe gap is measured as a negative dc voltage that is directly proportional to the gap
distance between the face of a proximity probe and the surface being monitored. Probe gap voltage for each
channel is displayed on the front panel meter by pressing the GAP switch.
OK - When the proximitor output voltage 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 OK option, 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.
ALARM - Pressing the ALERT and DANGER switches on the front panel of the monitor causes the cor-
responding Alert (first-level alarm) or Danger (second-level alarm) setpoints on each channel to be displayed on
the front panel meter. ALERT and DANGER LEDs light when the thrust position signal level exceeds preset
levels for the selected time delay, and appropriate ALERT and DANGER alarm relay contacts are activated.
Voting logic options determine when the Danger relay contacts are activated.
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 monitor was the first channel in the rack to go into alarm. Pressing
the RESET switch acknowledges the First Out.
ALARM RELAYS - Monitor alarms can be programmed for either latching or nonlatching mode. In the non-
latching mode, the alarm resets automatically when the alarm condition no longer exists. In the latching mode,
the alarm condition must he 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 - For maintenance functions, a DANGER BYPASS switch on the monitor circuit board is set
to inhibit the Danger relay drive. This function turns on the BYPASS LEDs. Other front panel functions arc
not affected. This function can be disabled using a jumper within the monitor.
BUFFERED OUTPUT - The Channels A and B coaxial cable connectors on the front panel of the monitor and
terminals on the Signal Input Relay Module provide buffered signals from respective channel transducers. These
connectors can be used for connection of external equipment.
RECORDER OUTPUT - A recorder output is provided for each channel. Depending on the option selected, the
recorder output levels, proportional to full scale, are either 0 to -10 Vdc, +1 to +5 Vdc, or +4 to +20 mA.
SELF TEST - The monitor has three categories of self test: cyclic, power-up, 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 arc performed.
• Cyclic self test is performed automatically during monitor operation. Errors encountered during cyclic
tests disable the monitor, and flash an LCD bargraph error code. Should the error be intermittent, the
monitor will return to operation, hut the error codes are stored for retrieval during user-invoked self
tests. Stored error codes are indicated by the OK LEDs flashing at 5 Hz provided that the channel is
()K.
•User-invoked test performs power-up self test and allows error messages stored during cyclic tests to 1-
read and cleared. Stored errors are annunciated by the OK LEDs flashing at 5 Hz and the error codt. ;
displayed on the front panel LCD bargraph.
2

•
•
•
Dual Thrust Monitor Operation 80178-01
3MONITOROPTIONS
',AL THRUST MONITOR
PAR I NUMBER
'2i00/70 -
FULL SCALE RANGE
AA
0125-0- 25 MILS
02=30-0-30 MILS
03=40-0-40 MILS
05=50-0-50 MILS
06=75-0-75 MILS
11=0.5-0- 0.5 MILLIMETRES
12=1-0-1 MUNE TRES
13=2-0 - 2 MILL1ME
TRANSDUCER INPUT Al ARM RE1 AY
•BB CC
•- - — •
01=1200 PROXIMITOR•
200 mV/MIL
02=14re rn OR 11 mm PROBE
100 mV/MIL
03=3000 PROXIMITORso
200 mV/MIL
-ONLY FOR RANGE OPTIONS 01, 02, 03. 11, AND 12
"ONLY FOR RANGE. OPTIONS 01 AND 11
00=NONE
01=5A EPDXY
SEAL ED
02=5A HERMEtI-
CALLY SEALED
03=0UAD RELAYS
EPDXY SEALED
AGENCY
APPROVAL
OD --
00.NOT REQ'D
01=CSA
02= BASE.Ir A
03=CITY OF LA
BARRIER:, O'.11)
00= NO
01,, YES
4PROGRAMMABLEOPTIONS
PROGRAMMABLE OP 110115.
FIRST OUT O1. NAHLI
c. OISAB:
ALARM DELAYS 0 .1
eI WI,
c' •._
I. ATCiew. •
nNON-LA iCHIN(
SNiPPIT; WI RI OP BON III' IAI I
r
[YANG'. k MODE ot A !OHM:*
OHON -LAiCHINC
RE, UNDER OUTPUTS 0 4 4 10 t20 mA.
•;., +I TO 01 Var.
0O to -10 Vdc
TINS o OR vOTING FOR RELAY DRIVE
OAND VOTINC. FOR RELAY DRIVF •
NORmM
OWE(. WC]
DA,RJ N BYPA'.0
• TOWARD PROBE.
.AWAY FROM PROBE
.• .-- ••_ •
rNAfILED
•DISAHI ED •
3

80178-01
ill) PLP1 AY
AB
(..ONDI TION OK Pf.„1_ A r
DRIVE+,
•OK • CHANNEL. A AND B IN OPERATING
RANGE.
ON
0OK •
-•-- --- --- -" "-
•0K 0
RESPECTIVE CHANNE.L A OR B
TRANSDUCER IN NOT OK CONDITION,
OR BYPASSED. 4'
OF F*
C) OK 0
MON! I OF IN SELF FEST, OR BOTH
IPANSDUCENS NO F OK OR BY--
PA'.--)S1:1).*
OFT*
___
-...• , .,.
,,,;,*0, OH i(t#0,)
,• •;,/ \..;.:. /
...,
I1 fv.,.11ING Al 5 Hz - F. 1-:N.!ce EN
cni IN IFF- D DI 1RING (': a:1.1C TI S F
I.'I Ai, lij!ROli.: Mi..':: AGE . ('I.J.E 11 zil, )
OH
Dual Thrust Monitor Operation
5OK
iLs
a
•OK
0DANCER
AO AIERI
0BYPASS
•
O
01
0
N(')TI A( :11 CHANNEL. IN THE: SYSTEM CONTROLS THE OK RELAY. I HEREF ORE , 1"*I I Firi,
rHA, riEt 17.N CAUSE A NO I (;4.. REI AY CONDITION (DEENERGI7i ID RELAY).
4NO'l OK CHANNEL_ CAN BE BYPASSED TO RESTORE RELAY OV CONDITIONS
4

•
LED Dr,P1 AY
AB
cOND I 0:‘,j
oMOO TOR IN DANLER 5IPASS
o SYSTEM IN POWER UP MODE
MODE
•ED-TJA(.---;S •oI..ISER INVOKE[) (..! I r IF.ST IN
PROrEREEEE
knin (MANN! I.. i''1'!',',
'0 Li i-PA'.. •_a(..11,ANNEL i• OR I I-3 1 SSE_D
•BYPA`T.') 0
•
•
Dual Thrust Monitor Operation 80178-01
6BYPASS
0
()
E. 4 75
OK ( )
POUR 0
/OR!
KAY •
•
5

80178-01
1.F.D DISPLAY
AB 30 \DI FIONI
ALERT
REI.AY DPIVi
•ALEP I- 0ON
FI IHE.P. CHANNEL. A OR B (OR
ALIII RI •E.IIOTEI ) HAD EXCEEDED Al. ARM
iE.VF I (SII ii [i_21)
ON
•A, [ IT T 0ON
---, rips i OUT CONDI HON IOU
() AI.1: k T 1(((i01)) ) pt '::)['i.(1,TIVE: A ON U .I1AI IIIFT r'IN
III ^, I !IV, EI-Y(FIFIII r ALAPM
II VI I.. IWO ( I IAI.II: I: , MA i'I
-.
\
iil)\r, .! II
A1.. , 1 'NEM A Tl. I IP',1 ON I- I. Ot I ()WINO
II I L '-) i . ' ON
Dual Thrust Monitor Operation
7ALERT
I
.-r•
a'
-A
CI) OK 0
DANGER (9
A•ALERT OB
C)RYPASI:i (
tEikI.IT OUT PESOLUTION IS RETTER THAN 50 MII.LISECOl•Th 3. OF TWOAL.APL.15,
()(..:C1...JH WI1 HIN L..)0 MIL.L.L,L.C.ONDS THEY c:.(Dij! CAUSE BOTH L.EDs.I.
1(p
6

•
0OK
•DANGER •
A0 ALERT C.D
0BYPASS 0
1.i) Unf--1..A \r'
AB C01 1 D f I C..M
DANGER
f)RIVL
(IN VOTING
REL. AY
AND VOlIrff
.DANCER ()
() DANGER •
•DANGER •
EITHER CHANNEL A OR B (ON
HOTH) HAS E_XCE.LDED ALAPm
lEVEL (SEE [1.1)
ON
ON
---
(...)N
al=
OFF
UN
--'''\
nDANGER
\ :2-:_-.5.1'/
__.
'1141.4 DANGER < )
\-,-
EIRST OUT CONDITION FOR
RE:.)3PECTIVE A OR B CHANNEL
THAT HAS EXCEEDED ALARN
LEVEL. TWO CHANNECI, MA)r)
INDICATE FIRST OUT FOLLOWING
SELF TEST.**
ON
ON
OFF
OFF
•
•
Dual Thrust Monitor Operation 80178-01
8DANGER
EITHER CHANNEL. IS BYPASFED, AL ARM RELAY IS ACTIVATE D IF NONBYPASSEL)
IS ILL ALARM.
•.FI I OUT RESOI U HUN H LIL I IF MILLHE.cnrv...., II iw(.) AL ARMS
(if-,C1.11-R WITHIN 50 MILLE,FCONDS OR I f,`,:).),S of: FACT' C) fl IER IHEY CODED
I".1 BU TH To I IA(..-.4 I.
7

80178-01 Dual Thrust Monitor Operation
9MONITORRANGES
',300,/"/ -- MITI
FU[1_ SCAT RANGE
01-25-0 25 MIL`,
02,:30-0• • .30 MII
4(1 •ilL) PalIL `y
50-0 • 50 Mil7.:)
0(3-= 75-0- 75 MILS
MILLIMLTRES
12==1 -0-- 1 minimr-FRES
MILLIMii PPS
FOR JUMPf P PF DCPAMMIrls
---1.111:1-
75 ?I 75
20 20
s 5
_-
0= a7 0
5- -
79 -
a=
EXAMPLES OF METER 5CA1
8

•
•
Dual Thrust Monitor Operation 80178-01
10 READCHANNELTHRUSTPOSITION
.4,11.10P CON ['wow-A r rn,JHrA If ME.ADMI_D Co
AAND H.
CHANNEL A
CI]
CHANr\lli
L1,?(Df....3L
5— _ 5
THHUS I
AP
I11(.-.)N VAL (..C3
251(d!1
9

80178-01 Dual Thrust Monitor Operation
11 READGAPVOLTAGE
L.L.T'f,c-S; GAP (7)WIJC:i! AN! HEAD GAP VOl TACT FOR BOTH CHANNEL. A AND
.HANI.1[ I. 0 (Al M! lY,11\1(,, HENIER ME. TFP SCALE..
()
) BfAciS 0
DANGER
GAP q?)
Aul[i-RroIRANMUcER:,
1HRUST
COLLAR
10

•
•
Dual Thrust Monitor Operation 80178-01
12 READALERTSETPOINTLEVELS
13
PRESSALERT SWITCH AND READ ALERT SET POINTS (FOR BOTH CHANNEL A AND
5) ON METER SCALE. BOTH NORMAL AND COUNTER SET POINTS ARE DISPLA YTD
0BYPASS
DANGER
(;)
A
BUFFERED!RANSDUCERS
0
READDANGERSETPOINTLEVELS
IPRESSDANGER SWITCH AND READ DANCER SET POINTS (FOR BOTH CHANNEL A
AND H) ON ME TER SCAT E. BOTH NORMAL AND COUNTER ',LT POINTS AR! hISPLAME
/DANGER
A
BUFFEREDTRANSDUCERS
0
11

80178-01 Dual Thrust Monitor Operation
14 SELFTEST
11P A' 111REF LLVFI Of. SELF TESTS:
POW! k IF `,I: HE (*MI" ONL Y WHEN MONITOR ;5 TURNED OH.
r'n 4.: 11 I: PERI ORMEE.) C;01,11INUOUSLY.
IN VoKED PE' PPORMED ([ILY WHEN INIIIA rED BY USER.
1) (.71 3300/2P
Ai MOMIOR
A( AIIRi
BY!'ASS
15
(%:))) u((
AB
RLDIRAINISOUCERS
ERRORS ARE. DETECTED DURING CYCLIC SI I
ST`;:
MONITORING IS ABOHE U UN TI I.
IS PES01. VED.
0ERROR CODE S TOAD IN MEMORY AND
FLASHED ON LCD B.:,,RGRAPH DISPLAY.
0BYPASS LED GOES ON ANDOK LED FLASHES
AT 5 H7.
OIF ERROR IS IN-FERMI T 1EN 1- AND unsAr----
P1.- MONITORING IS RESUMED AHD OK
LED FLASHES AT 5 HZ.
oFRROR CODE STORED. USER INVOKED II:SI
DISPL AYS AND CLEARS ERROR.
IF ERRORS ARE DE. TGIF:5' DURING POWER UP I
OR USER INVOKED TEST:
oMONITORING IS AHThR UNTIL I.Ic.FT! Ai: HON
RE-S01. VES PROBI FM.
oIES I (AN RE UN 11,1 MUNI IOR, 1)(1)W1*
UP OR USER INVOKED 1L. T.
12

•
•
•
Dual Thrust Monitor Operation 80178 01
14 SELFTEST[CONY]
f.D 051 HY SHORTING A(..;PCY--;(:.; TWO F..-• TED! (S, T)
CoC \1
PR(.11111 C: HON WII I HI
1001 I 01.: DI IRA IION ()I 11
••:,A1 COMPLETION cir- 0(1,ER INVOKED TEST MONITOR WII I RECALL 'STORED F PROF<
11111.0E. ERROR CODES MUST HT READ AND GI ['APED W1111
f-EFA01110N TO ALLOW MONITORING TO CONTINUE. 11M1.D 01, CHANNEL 01010LA
ACTIVE FOR APPROXIMATELY 30 SECONDS FOLLOWING ACTION.
3,11)/20
1r11,1 11-1PIISIMONITOR
•
0
%IR 0
AI'Pi C
Nir •
MIR
9
fli:ANSDUCIfr,
NOil
Al I11011011 HOW )110MH1'
HAR0PAL1 I 1 LA`,-)11, I RI 1R
ONLY 111E SUM HI 1,,.:A1.101.-0\1111
SE OMEN TS DISPLA rF D (1‘,r1F,
COLUMN. EXAMPLE_ 0110\11/0 F DROP
CODE 6.
R:At.) coc[y, ON L..10 E, 0TE1--) 1111,100 0H ACH 11,1-,101-1
LODE .:)1-.1 LIC,1 BY 1:4--1 '0111.10 AHD L.-IC.)11)111GALERT
1c..WITC11 FOR' ARPHOMM/, EEL r" I H (001I1).
oA T THE Er-=d 1_111.; 1,
SDAIENT11:1). TO PERF AD '`:,T1-"Ei.12;11...) ALERT I.
CLEAR I..IST FROM MLI\M".)H P11.1. AND F101..1:;DANGER
svvrT("Al FOR AppRo/HAHH Y
13