Yaskawa Σ-II Series - Manual (Page 14)

E-12
* 1. Nominal value at the rated load. The specified derating is required to select an appropriate
fuse capacity.
* 2. Cutoff characteristics (25 ° C): 300% five seconds min. and inrush current of 20ms.
* 3. A preventive circuit for inrush current is not built in the 24 VDC control power supply.
The protective circuit must be designed by the customer.
* 4. Make sure the current capacity is accurate. For the SERVOPACK with the cooling fan built-
in, an inrush current flows; 200% of the current capacity in the table above for two seconds,
when turning ON the control circuit power supply to start the fan working.
Note: 1. Do not use a fast-acting fuse. Because the SERVOPACK’s power supply is a capacitor
input type, a fast-acting fuse may blow when the power is turned ON.
2. The SGDH and SGDM SERVOPACKs does not include a protective grounding circuit.
Install a ground-fault protector to protect the system against overload and short-circuit or
protective grounding combined with the molded-case circuit breaker.
10.2 Main Circuit Wiring
SGDH and SGDM SERVOPACKs are suitable under the following conditions.
• With 100 V class: Less than 5000 Arms, 120 V maximum.
• With 200 V class: Less than 5000 Arms, 240 V maximum.
• With 400 V class: Less than 5000 Arms, 480 V maximum.
SERVOPACKs must be used with UL-listed fuses or circuit breakers, in accordance with the
National Electrical Code (NEC).
Use 75 °C heat-resistant copper wires or an equivalent.
Three-
phase
400 V
0.45 − 05DE 1.1 1.6
0.7
∗4
10A
(24VDC)
∗3 600 V 480 V
1.0 − 10DE 2.3 3.4
1.5 − 15DE 3.2 4.6
2.0 − 20DE 4.9 7.1
20A
3.0 − 30DE 6.7 9.7
5.0 − 50DE 10.3 14.9 78A
6.0 − 60DE 12.4 17.8
1.2
∗4 20A
7.5 − 75DE 15.4 22.3
11.0 − 1ADE 22.6 32.7
1.3
∗4 40A
15.0 − 1EDE 30.9 44.6
(cont’d)
Main
Circuit
Power
Supply
SERVOPACK Model
Power Supply
Capacity per
SERVOPACK
(kVA)
Current Capacity of the
Molded-case Circuit
Breaker and the Fuse
(A
rms
) ∗ 1 , ∗ 2
Inrush Current Rated Voltage
Capacity
(kW)
SGDM- SGDH-
Main
Circuit
Power
Supply
Control
Circuit
Power
Supply
Main
Circuit
Power
Supply
Control
Circuit
Power
Supply
Fuse MCCB