YASKAWA E-7S SERVOPACK SGD7S - SERVOPACK Overload Protection Characteristics

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2.1 Ratings and Specifications

2.1.3 SERVOPACK Overload Protection Characteristics

2-6

2.1.3

SERVOPACK Overload Protection Characteristics

The overload detection level is set for hot start conditions with a SERVOPACK surrounding air tem-

perature of 55°C.

An overload alarm (A.710 or A.720) will occur if overload operation that exceeds the overload pro-

tection characteristics shown in the following diagram (i.e., operation on the right side of the appli-

cable line) is performed.

The actual overload detection level will be the detection level of the connected SERVOPACK or Ser-

vomotor 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

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

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.

Detection time (s)

SERVOPACK output current

(continuous output current ratio) (%)

Instantaneous maximum output current

(Instantaneous maximum output current)

Continuous output current

(Continuous output current)

× 100%

100 230

10000

1000

100

100 200