Endress+Hauser silopilot FMM 460 User manual

BA 049 F/OO/e/04.92
Part No. 015602-1000
silopilot
FMM 4601460 Z
Level Measurement
Montage-und Betriebsanleitung
Installation and Operating Instructions
Endress + Hauser
Nothing beats know-how

Silopilot FMM 4601460 Z Contents
Contents
Application
Function
Instrument versions
Sensing weight for the FMM 460, FMM 460
Z
Installation
Selectingthe measuring point
Preparingthe measuring point
Mountingthe Silopilot
Electrical connections
Operating
Technical Data
Maintenance
Repair
Re~lacingthe max. switch
Replacingthe slack tape switch
Replacingthe gear motor
Replacingthe tape roll
Replacingthe counting pipe
Circuit diagrams
Spare parts listfor the Silopilot FMM 460

Contents Silopilot FMM 4601460 Z

Silopilot FMM 4601460 Z Application
Application
The SILOPILOT FMM 460 is an electromechanical levelmeasurementsystem.
(See Fig 1
).
The sensing weight which touches the material determinesthe application.
Differenttypes of sensing weight are usedfor measuringthe levelof materials in
bunkers and silos. These can be powdery,fine or coarse-grainedsolids.
Depending on the version and equipment, the SILOPILOT FMM460 is used
for measurementin silosor tanks with operating temperatures up to 60 OC or
pressuresup to
2 bar.
The FMM 460 Z version of the SILOPILOTcan also be used in flammable dusts
designated as explosion-hazardousarea, Zone 10 and 1
1.
The referencesmade in the following text to "bunker","silo"or "vessel"
are identical:
the vessel in which material is measured.
A complete measuring system consists of:
SILOPILOT
FMM 460 with sensing
weight
start buttonor timer
e the electromechanical counter
ZCD 155or ZCD 151
andlor a digitallanalogue converter +
memory ZAD 184
Function
A measuring tape with a sensing weight
attached to the end is lowered into a
bunker. When the weight touches the
surface of the material,the tape
slackens and the motor reverses.
The weight then
returnsto its original position.
While the weight is being lowered,the
SILOPILOT emits pulses corresponding
tothe length of the extended tape.
The pulses are recordedon an
electromechanical counter or the
digitallanalogue converter +
ZAD 184 memory.
The measurement is stored until the
next measuring cycle.
This is initiated bythe start button or
timer.
ZAD Contactor
timer counter
Fig. I
FMM 460
Connections

Function Silopilot
FMM 4601460 Z
Instrumentversions
The ~useof various options enables combinations of both electrical arld mechanical
modular comporlents to be selected specific to the application.
KLOPILOTFMM 460
Certificates,Assessments
R Standard (non-certified)
Y others
Countingsteps I Measuringtape
1 dmlstainless steel
2 dmlnylon
3 1/10foot/stainless sreel.
4 1/10footlnylon
9 others
Instrument heating
A none
B heating 220V, 50160Hz 40 W
C heating 11OV, 50160Hz 40 W
Y others
Minimumfail-safefunction
0 no presetting
1 setting at
xx, X meter
2 setting at
xx, X feet
9 other
Signal function
A non signal function
B signal of upper position
C signal of tape breakage (with 220V only)
D signal of upper position
+ tape breakage (with 220V)
1 Y other
Sun protectivecovea
0 no sun cover
1 with sun cover
9 other
Power supply
J AC 240V, 50160Hz
H AC 230V, 50160Hz
A AC 220V, 50160Hz
G AC 127V,50160Hz
F AC 115V,50160Hz
B AC 110V,50160Hz
D AC 24V,50/60Hz
Y others
Sensingweight
0 nowe~ght
1 (PVC(red),sensing weight
2 PE (white),sensingweight
3 PA (black),sensing weight
4 Umbrella PEIsail cloth
5 Umbrella PAlsa~lcloth
9 others
For connecting to
A ZCD 155or ZCD :51, /= 42 V
B ZCD 155or ZCD 151,34V
C digitallanalog memoryZAD 184
Y others

Silopilot FMM 4601460 Z Function
SlLOPlLOTFMM 460 Z
Certificates, Assessments
D BVS approvaldust-Ex Zone
Y others
Countingsteps ! Measuringtape
1 dm/stainless steel
3 1/10foot/stainless steel
9 others
Instrumentheating
A none
B heating 220V, 50160Hz
C heating 11OV, 50160Hz
Y others
Minimumfail-safefunction
0 no presetting
1 setting at xx, X meter
2 setting at xx, X foot
9 others
Signal function
A no signal function
B signal of upper position
C signal of tape breakage (with 220V only)
D signal of upper position + tape breakage (with 220V only)
Y others
Sun protectivecover
0 nosun cover
1 with sun cover
9 other
J AC 240V, 50160Hz
H AC 230V, 50/60Hm
A AC 220V, 50160Hz
G AC 127V, 50160Hz
F AC 1 15V,50/60Hz
B AC l l OV, 50/60Hz
D AC 24V, 50160Hz
Sensingweight
0 without weight
3 PA (black),sensing weight
5 umbrella, PA
l sailcloth
.For connection to
A ZCD 155or ZCD 151, /= 42V
B ZCD 155orZCD 151,24V
I/analoguememory ZAD 184

Sensingweights for the FMM 460, FMM 460 Z
Silopilot FMM 4601460 Z
Sensing weights for the FMM 460, FMM 460 Z
Standardweight in PVC Application:
or PE for the FMM460
With light bulk solids, mainly fine-grained,with powdery characteristics,
e.g.fodder.
For foodstuffs,e.g.salad oil, the PE weight must be used.
(notsuitablefor dust explosion hazardous area, Zone 10).
Weight:920 g
Standardweight for the The sta.ndardweight for the FMM 460 Z isof PA (Vestamid R) with R. 5 109 Cl
FMM 460 Z
Weight:920 g
Fig. 2
FMM 460
Standardweight
Fig,
3
FMM 460
Umbrella weighf
Umbrella weight in PA/PE for the FMM 460, FMM 460 Z
1
connection
distance accorcding
#
to height of
mounting flange
Square umbrha
L spoke in stainless steel
in sail cloth spring
4310
length of edge 250
*on delivew: 180 mm
l I
Application:
For very light, loose solids such as flour, coal dust etc. an umbrella weight in PA only
may be used with the FMM 460 Z
(Ex Zone 10111 l).
The FMM 460 may be used with either a PA or PE weignt.
The umbrellaweight has a large square surface areato prevent it sinking into the
material being measured,It can De folded so that
it fits through the DN 100
flange.

Silopilot FMM 460f460 Z Installation
Installation
Selecting the installation site
Select an installation positionon the silo
roof where inflowing or falling material
cannot damage the measuring tape.
Take intoconsideration the shape and
position of the inflow cone and the
outflow .funnelin the vessel.
See Fig.
4 and Fig. 5
The sensing pathshould not cross
internalfixtures which may touch the
tape when the weight
swings.
Preparing the installation
The SILOPILOT FMM460
DN 100 PN 16 DW 2501 is mounted on
a counter flange or a flange of the same
dimensions. This flange must be
mounted exactly horizontaland the pipe
onto which it is welded should be
exactly vertical. The pipe should be as
Fig. 4
FMM 460
short as possible.
installation withmaterial buikd-up
Installing a plastic pipe with throat and
pipe flange is recommended with an
especially thick silo roof and long pipes
(Fig. 6). This prevents damage tothe
sensing weight or to the tape caused
bythe sharp edges of the roof.
Inthis particular case the buffer cone
must be removed when using an
umbrella weight.
(Fig.
3)
If the instrument is in direct sunlight,
then a protective cover should beused
either in the form of
a sun roof (Fig. 7) or
as a protective sun hood.
Incountries with generally high
temperatures, (by the equator, in the
desert), a protective sun cover is
recommended as shown in Fig.
7.
If high condensation is present,then
installing a thermostatically controlled
electrical heating system for the
housing is recommended. See
instrumentversions, Pages 4
+ 5.
FI~. 5
FMM 460
lnstallation
Takingaccount of the filing cone

Installation Silopilot FMM 4601460 Z
Installingthe SILOPILOT
Put a gasketon the flange (especially if there is pressure in the silo). Carefully insert
the sensingweight intothe flange and pipe. Placethe SILOPILOT on the flange and
tighten usingthe
4 bolts.
Note the positionof the cable glands for electrical connections.
When using an l~mbrellaweight, fold it up and then pass it through the
DN 100flange.
(also see Fig.
8)
Mountingon a collar
Removethe housingcover (seePage 10).
with a narrow entrance
Turn the fan wheel until the sensingweight can be pulled away from the FMM to a
(e.g. Fig. 6)
distance of 0.5m. Separate the measuringtape above the buffer cone.
Passthe tape through the entranceand then fasten the umbrellaweight to it with
a
knot.
to DIN 2633
Fig. 6
Mountingin higher silo
roofs