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2.2
SERVOPACK Overload Protection Characteristics
The overload detection level is set for hot start conditions with a SERVOPACK surrounding air
temperature of 55°C.
An overload alarm (A.710 or A.720) will occur if overload operation that exceeds the overload
protection characteristics shown in the following diagram (i.e., operation on the right side of the
applicable line) is performed.
The actual overload detection level will be the detection level of the connected SERVOPACK or
Servomotor that has the lower overload protection characteristics.
In most cases, that will be the overload protection characteristics of the Servomotor.
• SGD7S-R70A, -R90A, -1R6A, -2R8A, -R70F, -R90F, -2R1F, and -2R8F
10000
1000
100
10
1
100
(Continuous output current)
Note: The above overload protection characteristics do not mean that you can perform continuous duty operation
with an output of 100% or higher.
For a Yaskawa-specified combination of SERVOPACK and Servomotor, maintain the effective torque within
the continuous duty zone of the torque-motor speed characteristic of the Servomotor.
• SGD7S-3R8A, -5R5A, -7R6A, -120A, -180A, -200A, -330A, -470A, -550A, -590A,
and -780A
10000
1000
100
10
(Continuous output current)
Note: The above overload protection characteristics do not mean that you can perform continuous duty operation
with an output of 100% or higher.
For a Yaskawa-specified combination of SERVOPACK and Servomotor, maintain the effective torque within
the continuous duty zone of the torque-motor speed characteristic of the Servomotor.
230
SERVOPACK output current
(continuous output current ratio) (%)
1
100
200
SERVOPACK output current
(continuous output current ratio) (%)
2.2 SERVOPACK Overload Protection Characteristics
Instantaneous maximum output current
Continuous output current
(Instantaneous maximum output current)
Instantaneous maximum output current
Continuous output current
(Instantaneous maximum output current)
× 100%
× 100%
2-5
2
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