Operating Conditions On 400-V Power Supply Voltage - YASKAWA SGLFW User Manual

7 Wiring

7.5.4 Operating Conditions on 400-V Power Supply Voltage

7.5.4 Operating Conditions on 400-V Power Supply Voltage

• Do not connect the SERVOPACK for 200 V directly to a voltage of 400 V.
The SERVOPACK will be destroyed.
• Control the AC power supply ON and OFF sequence at the primary side of voltage conversion transfer.
Voltage conversion transfer inductance will cause a surge voltage if the power is turned ON and OFF at the secondary,
damaging the SERVOPACK.
There are three types of SGDH SERVOPACKs, for the power supply voltages: Single-phase 200 VAC, three-
phase 200 VAC, and three-phase 400 VAC. When using the SERVOPACK for 200 V with the three-phase 400-
VAC class (380 to 480 V), prepare the following voltage conversion transformers (single-phase or three-phase)
Primary Voltage
380 to 480 VAC
When selecting a voltage conversion transformer, refer to the capacities shown in the following table.
Voltage
Single-phase
200 V
Three-phase
200 V
* This is the net value at the rated load.
Single-phase
R
S
T
7-36
Secondary Voltage
200 VAC
→
SERVOPACK Model Voltage Capacity per
SGDH-
SERVOPACK * (kVA)
A5AE
01AE
02AE
04AE
05AE
08AE
10AE
15AE
20AE
30AE
50AE
75AE
1KM
1KM
Magnetic contactor for
power supply ON and OFF
Single-phase Power Supply Connection Example
CAUTION
Current Capacity of Circuit
Breaker or Fuse (Arms)
0.25
0.40
0.75
1.2
1.4
1.9
2.3
3.2
4.3
5.9
7.5
15.5
Voltage conversion
SERVOPACK
transformer
200 VAC
L1
L2
4
8
4
7
10
13
17
28
41