Power Loss - YASKAWA SGM Series User Manual

Installation and Wiring

8.3.3 Power Loss

8.3.3 Power Loss
8
If the motor is insulated from the machine, ground the motor directly.
D To prevent malfunction due to noise, take the following actions:
• Position the input reference device and noise filter as close to the SERVOPACK as pos-
sible.
• Always install a surge absorber circuit in the relay, solenoid and magnetic contactor coils.
• The distance between a power line (such as a power supply line or motor cable) and a sig-
nal line must be at least 30 cm (12 in). Do not put the power and signal lines in the same
duct or bundle them together.
• Do not share the power supply with an electric welder or electrical discharge machine.
When the SERVOPACK is placed near a high-frequency oscillator, install a noise filter
on the input side of the power supply line.
• The SERVOPACK uses high-speed switching elements, which may cause noise on signal
lines. To prevent this, always take the above actions.
D Prevention of Radio Frequency Interference (RFI)
D Since the SERVOPACKS are designed for industrial use, no measures are provided against
radio frequency interference. Use a noise filter in the power input line when using the SER-
VOPACKS near residential areas or where they are prone to radio frequency interference.
D Do not bend or apply tension to cables.
Since the conductor of a signal cable is very thin [0.1 to 0.3 mm
it with adequate care.
The power loss of the SERVOPACKS is as shown in the following table.
Table 8.4 Power Loss during Rated Output
SERVOPACK Supply Voltage
Model SGD-
A3AN 200 VAC
A5AN
01AN
02AN
04AN
08AN
A3BN 100 VAC
A5BN
01BN
02BN
03BN
Capacity Output Current
W
30
50
100
200
400
750
30
50
100
200
300
8 -8
2 2)
(0.0002 to 0.0005 in ], handle
Power Loss
A (rms) W
0.42 15
0.60 18
0.87 20
2.0 35
2.6 45
4.4 60
0.63 17
0.90 20
2.2 30
2.7 47
3.7 70