Murphy SS300 Series Switch User Manual


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SPEED SETTING ADJUSTMENT
For Models SS300 and SS300-LF
NOTE: The adjustment control(s) is a 20-turn potentiometer(s) and
have no stops when the extreme settings are reached. Always turn a
full 20 turns.
1. Make sure the PICKUP LED light is “ON”. The PICKUP LED will
be flashing for a low frequency (under 30 Hz) and will remain “ON”
for a higher frequency.
2. Turn the SPEED ADJUST pot fully clockwise 20 turns (Figure 13).
3. Run the engine at the desired RPM and adjust the SPEED ADJUST pot
counterclockwise until the ENERGIZE LED comes “ON” and the
relay has transferred (Figure 13).
For Models SS300-AD and SS300-AD-LF
1. Make sure the PICKUP LED light is “ON”. The PICKUP LED will be
flashing for low frequency (under 30 Hz) and will remain “ON” for a
high frequency.
2. Turn the SPEED ADJUST pot fully clockwise 20 turns (Figure 14).
3. Turn the DE-ENERGIZE pot fully counterclockwise 20 turns.
4. Run the engine at the desired RPM and adjust the SPEED ADJUST pot
counterclockwise until the ENERGIZE LED comes “ON” and relay
has transferred.
5. Reduce the engine speed to the desired drop out point.
6. Adjust the DE-ENERGIZE pot clockwise until the ENERGIZE LED
goes “OFF” and the relay has dropped out (Figure 14).
ENERGIZE
SPEED
PICKUP
LED
Lights
20 turn
potentiometers
SPEED
ADJ.
DE-ENERGIZE
Figure 13
Figure 14
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500 fax+1 281 633 4588
e-mailsales@fwmurphy.com
MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
+52 444 8206264 fax +52 444 8206336
Villahermosa Office +52 993 3162117
e-mailventas@murphymex.com.mx
www.murphymex.com.mx
FRANK W. MURPHY, LTD.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055 fax+44 1722 410088
e-mailsales@fwmurphy.co.uk
www.fwmurphy.co.uk
MURPHY SWITCH OF CALIFORNIA
41343 12th Street West
Palmdale, California 93551-1442; USA
+1 661 272 4700 fax+1 661 947 7570
e-mailsales@murphyswitch.com
www.murphyswitch.com
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
MACQUARRIE CORPORATION
1620 Hume Highway
Campbellfield, Vic 3061; Australia
+61 3 9358 5555 fax+61 3 9358 5558
e-mailmurphy@macquarrie.com.au
FW Murphy
P.O. Box 470248
Tulsa, Oklahoma 74147 USA
+1 918 317 4100
fax +1 918 317 4266
e-mail sales@fwmurphy.com
www.fwmurphy.com
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USA–ISO 9001:2000 FM 28221
UK–ISO 9001:2000 FM 29422
Printed in U.S.A.
Warranty
A limited warranty on materials and workmanship is given with this FW Murphy product.
A copy of the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm
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