Advertisement
Sigma II User's Manual
3.3.2
Typical Main Circuit Wiring Example
The following figure shows a typical example of main circuit wiring.
R
1MCCB: Molded–case circuit breaker (for the inverter)
FIL: Noise filter
1MC: Contactor
n
Designing a Power ON Sequence
Note the following points when designing the power ON sequence.
Design the power ON sequence so that power is turned OFF when a servo alarm signal is
output. (See the circuit figure above.)
•
Hold the power ON button for at least two seconds. The servo amplifier will output a
servo alarm signal for two seconds or less when power is turned ON. This is required
in order to initialize the servo amplifier.
3.3.3
Cable Specifications and Peripheral Devices
Refer to the Sigma II Series Servo System Catalog Supplement (No. G-MI#99001).
S
T
1MCCB
FIL
(For servo alarm display)
1Ry
Main
Main power supply
power supply
ON
1Ry
OFF
1MC
Power Supply
Servo alarm (ALM)
output signal
Servo Amplifier
SGDH-ooAE
L1C
L2C
1MC
L1
L2
L3
1PL
ALM-SG
1MC
1SUP
1Ry: Relay
1PL: Indicator lamp
1SUP: Surge suppressor
1D: Flywheel diode
2.0s maximum
3-9
Chapter 3: Wiring
A
U
B
M
V
C
W
D
PG
CN1
+24V
31
1Ry
ALM
0V
32
1D
Advertisement
