Sakai SW800 Series, Руководство по ремонту

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2-035
Vibrating System
2-4-7. Operation of vibrator switches and solenoids
Models SW800 and SW850 have a system to control vibrator pump delivery in three steps
(frequency in sthree steps) and amplitude in two steps (vibratory force in two steps). Description of
the system is given below.
★ The vibrator shaft rotation varies with varying pump delivery. That is, the frequency varies.
Amplitude is changed by reversing the rotating direction of the vibrator shaft (See P.2-029).
1. Electric wiring diagram for vibrating system
4
5
1
3
a
b
SOL
a
SOL
b
B
B
a
SOL
b
4
5
1
2
2
4
5
1
2
A B
C D E F
G
Diode unit
3
1 2
5
3
5
4
1
2
3
5
4
1
2
Vibrator switch (F-R lever knob)
Amplitude selector
switch (F)
Fuse 15A
Vibrator relay (1)
Vibrator relay (3)
Vibrator relay (2)
Amplitude select
valve (F)
Amplitude select
valve (R)
Frequency select
valve
SW8002026
（a）
（b）
To combination meter
Amplitude selector
switch (R)
Frequency selector
switch
3.Operation of amplitude selector switches and solenoids
1) Amplitude selector switch set to Low amplitude [ ]
Terminal 1 connects to terminal 2. Solenoid (b) of the front amplitude select valve and solenoid
(a) of the rear amplitude select valve are energized.
2. Switch connection
* Amplitude select valve for rear vibrator. Letters (a, b) in parentheses ( ): SW800
→
From Machine
Amplitude
Terminal number
Solenoid
energized
Symbol
1 2 3 4 F
R
Low amp.
◯ ◯ ◯
b
a
(b)*
OFF
◯ ◯
High amp.
◯ ◯ ◯
a
b
(a)*
2-1.Amplitude selector switch 2-2.Frequency selector switch
Frequency
Terminal number
Solenoid
energized
Symbol
1 2 3 4
High
frequency
◯ ◯ ◯
—
Medium
frequency
◯ ◯ ◯
b
Low
frequency
◯ ◯ ◯
a
◯
5