ENM 3 Transmitter forfrequency and rotational speed
Manual 42/14-31 EN Rev. 01
6 ENM 3, Transmitter for frequency and rotational speed 42/14-31 EN
Fig. 2 19“ plug-in card1 Jacks for the frequency input Bu12 Change-over switch measure/test3 Potentiometer for trigger level (R13)4 Test jacks for pulse output Bu35 Potentiometer for lower range value (R64)6 Potentiometer for upper range value (R54)7 Test jacks for output Bu28 Rated plate
4.1.2 19“ plug-in card in surface-mounting case IP 20
Fig. 3 19“ plug-in card in surface-mounting case IP 20
The design IP 20 surface-mounting case consists of a plasticscase into the 19“ plug-in card, described in Section 4.1.1, isplugged and secured with 2 screws. In the interface unit blade-type terminals 6.3 × 0.8 mm for tab connectors or screw termi-nals for wires 2.5 mm2 are optionally available. The louvers inthe cover of the 19“ plug-in card covered by a flap.
4.1.3 Field case IP 54
The plastics case with degree of protection IP 54 consists ofthe lower part (1) with equipped printed circuit boards and thecase cover (Fig. 4).After removing the case cover the manual control elements areaccessible. Screw terminals are soldered onto the printed cir-cuit boards for connection wires up to 2,5 mm2.
Fig. 4 ENM 3 in the field case IP 54 (without case cover)1 Case lower part2 Motherboard3 Constant voltage supply source4 Terminals5 Potentiometer for trigger level (R13)5 Potentiometer for lower range value (R64)7 Potentiometer for upper range value (R54)
42/14-31 EN ENM 3, Transmitter for frequency and rotational speed
12 Wiring diagrams, circuit diagrams
21
ENM 3, Transmitter for frequency and rotational speed 42/14-31 EN
Fig. 18Circuit diagram for transmitter ENM3, in version field case IP 54input stage A with constant voltage source and 2 alarm signalling units
22
2) R
4, R
10 o
mitt
ed w
hen
LP.0
342
049.
9 is
fit-
ted
and
the
jum
per
63/6
4 is
clo
sed.
only
whe
n fit
ting.
42/14-31 EN ENM 3, Transmitter for frequency and rotational speed 23
Fig. 19 Circuit diagram for transmitter ENM3, version field case IP 54input stage B
2) W
hen
fittin
g 03
42 0
49 9
, R4
and
R10
are
om
itted
an
d ju
mpe
r 63
/64
is c
lose
d.
only
whe
n fit
ting.
ENM 3, Transmitter for frequency and rotational speed 42/14-31 EN
Fig. 20Circuit diagram for transmitter ENM3, version 19“ plug-in cardand surface-mounting case IP 20, input stage A
24
Pul
se-
outp
utT
est f
erqu
ency
Tes
t
Output
With ..........connected
With
.....
.....c
onne
cted
42/14-31 EN ENM 3, Transmitter for frequency and rotational speed
13 Spare parts
25
ENM 3, Transmitter for frequency and rotational speed 42/14-31 EN26
42/14-31 EN ENM 3, Transmitter for frequency and rotational speed
14 Dimensional drawings
top-had rail to DIN EN 50 022high 15 mm or 7.5 mm
optional terminal 2.5 mm ortab connector 6.3/2.8 x 0.8 mm
2
with 19" plug-in-card
View X
ENZ-13014
205
118
132.
5
14 23
8
182
5.5
158
150
32.5
334 1
9532
.58
7
X
R4
a220
Pg11118
250
6,4 33
70
Z-13653
19“plug-in cardDimension a ≈ 245 mm with cable gland Pg11field mounting case IP 54
27
171,87 (Stecker/Connector D)175,47 (Stecker/Connector F)
M2,5 x 10
100
2 Z-12979
128,
4
122,
5
20
4T
14
ABB Automation Products GmbHHöseler Platz 2D-42579 HeiligenhausPhone +49(0)20 56 12 - 51 81Fax +49(0)20 56 12 - 50 81http://www.abb.com
Subject to technical changesPrinted in the Fed. R. of Germany
42/14-31 EN Rev. 01Edition 03.01
Subject to technical changes.
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