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Sigma II User's Manual
3.2 Servo Amplifier Internal Block Diagrams
The following sections show internal block diagrams of the Servo Amplifiers.
3.2.1
30 to 400W (200V) and 30 to 200W (100V) Models
Single-phase
+10%
200 to 230 V
-15%
(50/60Hz)
Noise filter
L1
IMC
L2
L1C
L2C
Power
Power
OFF
ON
1MC
Open during servo
alarm
(5RY)
Note: The power supply voltage is 100 to 115V (+10% -15%) 50/60Hz) for the 30 to 200W 100V models.
RY1
PM1-1
P1
FU1
+
R
C1
XX1
-
T
N1
Voltage
Sensor
+
+
~
DC/DC
-
con
-
~
verter
-
1MC
Surge
Monitor display
suppressor
Analog voltage
converter
Connection
for optional
Analog monitor
board
output for
supervision
B1
B2
P2
CHARGE
D1
TR1
N2
Gate drive over
Voltage
current protector
Relay drive
Gate drive
Sensor
Interface
+5V
PWM
generator
+15V
Digital cur
rent amp
+5V
+12V
+5V
Current
reference
calculation
0V
POWER
Serial port
CN3
CN5
Serial port
Digital monitor
personal computer
3-5
Chapter 3: Wiring
THS1
D2 D3 D4
PM1-2
R7
U
U
V
V
R8
W
W
CN2
Current
Sensor
For battery
ASIC
connection
CN8
PG signal
Divider
processing
CN1
Reference pulse
PG output
processing
Reference pulse inpu
Speed/torque
A/D
Position
reference input
control
Speed
control
I/O
Sequence I/O
CPU
AC Servomotor
PG
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