Azonix SW-50 Use and care manual

SW-50 Speed Switch
Installation and Calibration Instructions
Installation:MounttheSW-50toa secure bracket offtheengine.If on-engine
mounting is necessary, shock mounts are recommended. Wire according
toconnectiondiagram on reverse.Shieldedcable is recommended.Shield
should be brought to ground directly. The SW-50 will work with most
magnetic pickups provided the signal amplitude is greater than 50 mVrms
and less than 70 Vrms. Mount pickup according to manufacturer’s
instructions.
Calibration: Determine the setpoint frequencies from an RPM value using
the following formula:
Frequency = RPM x No. of Teeth (Holes)
60
Verify current calibration: Connect a signal generator — such as theDynalco
F-16 — to the SW-50 magnetic pickup input (signal input).
JSetthe signal generator to a low frequency.Slowly increasethe frequency.
Using an ohmmeter across each relay contact, in turn, determine the
frequency at which the relays change state. (Note: overspeed relay will
latch if terminal 4 is not grounded.)
Change the setpoints: Remove the screws in the access holes for the relay
adjustment trim pots.
JSet the signal generator to the frequency at which the relay should change
state.
JUsing a small, flat screwdriver, adjust the trim pot for the appropriate relay
until the relay changes state.
JDecrease the frequency, then slowly increase it to verify that the relay trips
at the appropriate point.
SW-50 is a trademark of Dynalco Controls
DYNALCO CONTROLS RESERVES THE RIGHT TO CHANGE THESE SPECIFICATIONS WITHOUT NOTICE.
©2002 Azonix-Dynalco Available at < Select: Downloads 145f-12043, REV 0
3690 N.W. 53rd Street, U.S.A.
[phone] • Fax: [phone] • Web site:
l:~J AZCJNIX•DYNALCC

.25
(.64)
3.75
(9.5)
3.12
(7.9)
2.00
(5.1)
4.62
(11.7)
5.12
(13.0)
.25
(.64) DIA
SW-50
CONNECTION DRAWING
Dimensions
inches
(centimeters)
SINLI
____
.....
1
SW-50
SPEED SWITCH
OPERATION NOTES
11CONNl!CTINO
TIIUIINAL
I
TO
Tl!IUIIN
AL 2
~
LOWUIS
HT"°9NTS
■ Y
10'1.
,011
IYSTIM
Tl:ST.
21CONNICTINQ
TIIIMINAL
4
TO
TIIIMINAL
2
IIIIITI
011
AILAY
ANO
INMIIITI
'
i..t,.TC
_
"'
_
••
- ·
---
-
----'
-+-
'-'
_l
l
21St:f:
MANUAL
,011
DETAILS
ON
O~l!IIATION
.
?'f'•M.1;0COOffllCl.9
U N
..
w.
11
0
..
. ,
.,
,,
__
_
H l
lltt
Eilf
Lil
SIW-50
D
VN
A
l!..
C:0
1
C
'II
"'I .,
00
111
Ult