Servopack Overload Protection Characteristics - YASKAWA Sigma-7 Series Product Manual

2.2 SERVOPACK Overload Protection Characteristics

2.2 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.
• SGD7W-1R6, -2R8
10000
1000
(Continuou 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.
• SGD7W-5R5, -7R6
(Continuou 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.
2-4
100
10
1
100 2 0
ERVOPACK output current
(continuou output current ratio) (%)
10000
1000
100
10
1
100 200
ERVOPACK output current
(continuou output current ratio) (%)
In tantaneou maximum output current
Continuou output current
(In tantaneou maximum output current)
In tantaneou maximum output current
Continuou output current
(In tantaneou maximum output current)
× 100%
× 100%