Yaskawa DC Power Input Σ-V Series - Manual (Page 16)

E-14
3 Wiring
3.1 Input Power Supply, Molded-case Circuit
Breaker, and Fuse
Use input power supplies that meet the following conditions.
• The main circuit power supply must be a 24-VDC or a 48-VDC power
supply.
• The control circuit power supply must be a 24-VDC power supply.
• The main circuit power supply and the control power supply must be two
separate input power supplies.
• Power supplies must have double or reinforced insulation that conforms
to safety standards.
• Current limiting function is required for AC/DC converter which is used
for main circuit power supply. The current limiting specification must be
50A or less to prevent short-circuit current exceeds 50A under short cir-
cuit condition.
• External branch circuit protection must be provided in accordance with
the National Electrical Code and local codes.
When choosing molded-case circuit breakers and fuses for input power sup-
plies on the AC side, confirm the specifications of the input power supplies
and refer to this table.
Also, choose molded-case circuit breakers and fuses that meet the following
cutoff characteristics.
Cutoff characteristics (25
°C):
⋅
300% of the rated load input current, five
seconds min.
⋅
Does not cut off at the inrush current value
of the power supply.
* 1. Values with instantaneous maximum load.
* 2. Values with rated load.
SERVO-
PACK
Model
SGDV-
Main
Circuit
Power
Supply
Max.
Applica-
ble
Servo-
motor
Capacity
[W]
Power
Supply
Capacity
per
SERVO-
PACK
*1
[W]
Input Current Capacity Rated Voltage
Main Circuit Con-
trol
Cir-
cuit
*2
[A]
Fuse
[V]
MCCB
[V]
Continu-
ous
Rated
[A]
Instan-
taneous
Max.
[A]
100
V
200
V
400
V
100
V
200
V
400
V
1R7E
DC
24 V
11
108 2.0 5.5
0.3 250 600 240 480
DC
48 V
169 1.0 4.5
2R9E
DC
24 V
30
165 3.5 8.5
DC
48 V
411 2.0 10.5