Sharp DV-L70S Service Manual page 33

9-11. IC701 AN8473NS-1
Pin No. Terminal name
1 VH Hole bias terminal
2 H3L Hole element 3 negative input terminal
3 H3H Hole element 3 positive input terminal
4 H2L Hole element 2 negative input terminal
5 H2H Hole element 2 positive input terminal
6 H1L Hole element 1 negative input terminal
7 H1H Hole element 1 positive input terminal
8 EC Torque command input terminal
9 ECR Torque command reference input terminal
10 FG FG signal output terminal
11 START Start/stop selection terminal
12 VPUMP Booster terminal
13 BC1 Booster capacitor connection terminal
14 BC2 Booster capacitor connection terminal
15 GND GND terminal
16 VDD Power terminal
• Block Diagram
(After checking the tolerance
of the electrical characteristics,
the customer determines the
resistance value.)
Spindle speed
control signal
Operation function
VDD
16
START
Start/stop
11
2200pF
10
FG
100Ω
H1H
7
H1H
6
H2H
Hole
5
amplifier
H2L
4 matrix
H3H
3
H3L
2
Hole
1
VH
100Ω
bias
EC 8
ECR
9
PWMSW
PWM frequency
30
connection circuit
HIGH:40kHZ
LOW:80kHZ
Pin No. Terminal name
17 VM21 Motor power terminal 2
18 VM22 Motor power terminal 2
19 CS Current detection terminal
20 NC N. C.
21 A31 Drive output 3
22 A32 Drive output 3
23 PG2 Power current detection terminal 2
24 A21 Drive output 2
25 A22 Drive output 2
26 PG1 Power current detection terminal 1
27 A11 Drive output 1
28 A12 Drive output 1
29 NC N. C.
30 PWMSW PWM frequency selection terminal
31 VM12 Motor power terminal 1
32 VM11 Motor power terminal 1
0.1µF
0.1µF
BC2 BC1
VPUMP
14 13 12
Thermal
Booster circuit
protection
OSC
Distribution
PWMOUTU
circuit
PWMOUTL
FF
Absolute
value
SRESET
VT
Vc1
SSET
33
Operation function
5V
100µF
VM21
17
VM22
18
VM11
32
VM12
31
A11
27
A12
28
A21
Output
24
circuit
A22
25
A31
21
A32
22
PG2
23
26
PG1
X5
19
CS
Rcs=0.33Ω
15
GND
DV-L70S
DV-L70BL
DV-L70W