Rotation Speed Monitor Type Al

Rotation Speed Monitor Type Al
Rotation Speed Monitor
Type Al-Ni 7
Technical Data
General
The Al-Ni 7 is for attachment to the shaft end
of large machines or motors to monitor their
running up, reaching the nominal speed and
stopping at braking. Monitoring of conveyor
belts is possible by rolling wheels.
The Al-Ni 7 is the successor of the proven Al-Ni 5.
It’s dimensions at clutch flange and size have
been maintained from it’s predecessor and the
function principle is compatible. With respect
to the lower switching power the Al-Ni 7 is appropriate for monitoring slow-down, revolution and conveyor belts.
As an advantage the Al-Ni 7 features a digital
adjustment of the switching speed (r.p.m.) by
code switches. The adjustment range is from
120 r.p.m. up to 6000 r.p.m. (2-100 revolutions
per second) in steps of 60 r.p.m. and can be set
independently for left and right turning.
Function Principle
When the shaft is turned a stepper motor induces the supply power for the signal processing circuits and the signal voltages for determination of revolution and direction.
When the speed selected by the code switches
is reached relay 1 switches at left turning and
relay 2 switches at right turning.
Switching Speed
For adjustment of the switching speed the coding switches, two for each turning direction,
are to be set by a small screw driver.
The digits 02 to 99 can be adjusted directly, the
adjustment 00 is interpreted to 100 revolutions
per seconds.
The switching hysteresis is
30 - 60 r.p.m. (0,5 - 1 revolutions per second).
Switching Performance
The switching performance is determined by the
contacts of the monostable relay. The max. values for voltage, current and switching power
(resistive) are given in the following table.
Switching Performance
max. voltage
400V AC
max. current
5A
max. switching power 1250VA
Connecting Ports
The connecting ports are suitable for wires up
to 2.5 mm² . For insertion of the wires the cage
clamp must be opened by the by-packed tool
or alternatively by pressing with a suitable
screw driver from the front or rear side. The
connecting port allocation is given in Fig. 2.
Warning
Hazardous voltage may appear at the electrical
ports even when the device has stopped.
Therefore, the power supply must be switched
off prior to opening the device. Entrance of
humidity into the opened device must be
avoided.
240V DC
5A
150W
Technical Data
Supply voltage:
Internally generated
Nominal speed range:
120 to 6.000 r.p.m.
(2 to 100 r.p.s.)
Relay contacts:
2 alternators, for left and right
turning
Switching performance:
max. 400V AC, 5A, 1250VA
max. 240V DC, 5A, 150W
(resistive)
Adaptation:
Pin adapter with plugged
elastic clutch
Cable entry:
M20 x 1,5
Housing material:
Glass fibre reinforced plastic;
oil, grease and acid resistant
Housing dimensions:
According to fig. 1
Flange diameter:
120 mm
Shaft bearing:
2 ball bearings
Environmental temperature:
Operating
Storage
Transport
Enclosure:
IP 65
Rotation speed monitor Al-Ni 7
Elastic clutch
Ident.No.: 243 903
Ident.No.: 243 895
Mechanical Data
-25°...+70°C
-40°...+80°C
-40°...+80°C
Procurement Data
Testing and Qualification of the Item
Humidity:
Vibration:
Shock loads:
DIN IEC 68-2-30
Lower temp.:
Upper temp.:
Test duration:
+25°C / 97% rel. hum.
+55°C / 93% rel. hum.
6 days
DIN EN 60 068 -2 -6
Frequency:
Amplitude:
Resp. acceleration:
10 - 150Hz
0,35mm
5g (20 Cycles per axis)
DIN EN 60 068 -2 -27
Shocktype:
Amplitude:
Duration:
semi-sine
30g
18ms (3 Shocks per orientation)
Shocktype:
Amplitude:
Duration:
DIN EN 60 068 -2 -29
semi-sine
25g
6ms (1000 Shocks per orientation)
Long term shock loads:
Isolation:
Susceptibility:
Emission:
Fig. 1: Dimensions
DIN / VDE 0435 Part 303
Check value:
2kV AC
Conducted susc.:
DIN / EN 50141
Radiated susc.:
DIN ENV 50140
Electrostatic discharge: DIN EN 61 000-4-8
Contact
Air gap
Burst:
DIN EN 61 000-4-4
Surge:
DIN EN 61 000-4-5
asymmetrical
symmetrical
10 V
10 V/m
Radiated emission:
Line B
DIN EN 55 022
4 kV
8 kV
2 kV
4 kV
2 kV
Example:
Switching speed
at 2340 U/min,
turning direction right =
switching position 3 : 9,
on the right switches
Fig. 2 : Function of the code switches and location of the connecting ports
Relation of code switches position and switching speed
Pos.
r.p.s.
r.p.m.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
not
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
usable
120
180
240
300
360
420
480
540
600
660
720
780
840
900
960
1020
1080
1140
2 : 0
20
1200
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
Pos.
r.p.s.
r.p.m.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
1260
1320
1380
1440
1500
1560
1620
1680
1740
1800
1860
1920
1980
2040
2100
2160
2220
2280
2340
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
4 : 0
40
2400
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
ASG.06.425/112003 (Subject to alteration)
:
:
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:
Pos.
r.p.s.
r.p.m.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
2460
2520
2580
2640
2700
2760
2820
2880
2940
3000
3060
3120
3180
3240
3300
3360
3420
3480
3540
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
6 : 0
60
3600
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
Pos.
r.p.s.
r.p.m.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
3660
3720
3780
3840
3900
3960
4020
4080
4140
4200
4260
4320
4380
4440
4500
4560
4620
4680
4740
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
8 : 0
80
4800
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
Pos.
r.p.s.
r.p.m.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
4860
4920
4980
5040
5100
5160
5220
5280
5340
5400
5460
5520
5580
5640
5700
5760
5820
5880
5940
0 : 0
100
6000
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Address
ASG
Luftfahrttechnik und Sensorik GmbH
Junkersstrasse 2
69469 Weinheim / Germany
Tel.
(+ 49 62 01) 6 03 - 0
Fax
(+ 49 62 01) 6 03 - 2 22
e-Mail info@asg-weinheim.de
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