3.1 Main Circuit Wiring
3-13
3
Wirin
g and Con
nection
(5) Power Supply Capacities and Power Losses
The following table shows SERVOPACK’s power supply capacities and power losses when using single-
phase 200 V power supply.
∗
The official model number is SGDV-120A11A008000.
Note 1. SGDV-R70A, -R90A, -1R6A, and -2R8A SERVOPACKs do not have built-in regenerative resistors. If the regen-
erative energy exceeds the specified value, connect an external regenerative resistor between B1/ and B2.
2. Regenerative resistor power losses are allowable losses. Take the following action if this value is exceeded.
• Remove the lead or shorting bar between terminals B2 and B3 on the SERVOPACK main circuit of SGDV-
5R5A, -120A SERVOPACKs.
• Install an external regenerative resistor between external regenerative resistor connection terminals B1/ and
B2.
3. External regenerative resistors are not included.
(6) How to Select Molded-case Circuit Breaker and Fuse Capacities
The following table shows the SERVOPACK’s current capacities and inrush current when using single-phase
Use these values as a basis for selecting the molded-case circuit breaker and fuse.
∗
The official model number is SGDV-120A11A008000.
Note 1. To comply with the EU low voltage directive, connect a fuse to the input side as protection against accidents
caused by short-circuits. Select the fuse for the input side that are compliant with UL standards.
The table above also provides the net values of current capacity and inrush current. Select a fuse and a molded-
case circuit breaker which meet the breaking characteristics shown below.
• Main circuit, control circuit: No breaking at three times the current values shown in the table for 5 s.
• Inrush current: No breaking at the current values shown in the table for 20 ms.
2. The following restrictions apply to UL standard compliance conditions for SGDV-120A11A008000 SERVO-
PACKs.
• Current rating when using molded-case circuit breaker: 40 A max.
Main Circuit
Power
Supply
Maximum
Applicable
Servomotor
Capacity
[kW]
SERVOPACK
Model SGDV-
Power Supply
Capacity per
SERVOPACK
[kVA]
Output
Current
[Arms]
Main
Circuit
Power
Loss
[W]
Regenerative
Resistor
Power Loss
[W]
Control
Circuit
Power
Loss
[W]
Total
Power
Loss
[W]
Single-phase,
200 V
0.05
R70A 0.2
0.66
5.2
–
17
22.2
0.1
R90A 0.3
0.91
7.4
24.4
0.2
1R6A 0.7
1.6
13.7
30.7
0.4
2R8A
1.2
2.8
24.9
41.9
0.75
5R5A
1.9
5.5
52.7
8
77.7
1.5
120A
*
4
11.6
68.2
10
22
100.2
Main Circuit
Power
Supply
Maximum
Applicable
Servomotor
Capacity
[kW]
SERVOPACK
Model
SGDV-
Power Supply
Capacity per
SERVOPACK
[kVA]
Current Capacity
Inrush Current
Main
Circuit
[Arms]
Control
Circuit
[Arms]
Main
Circuit
[A0-p]
Control
Circuit
[A0-p]
Single-
phase,
200 V
0.05
R70A 0.2
2
0.2
33
70
0.1
R90A 0.3
2
0.2
1R6A 0.7
3
0.4
2R8A
1.2
5
0.75
5R5A
1.9
9
33
1.5
120A
*
4
16
0.25
