2.2 SERVOPACK Overload Protection Characteristics
2-4
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-2R8A, 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-120A
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
)
S
ERVOPACK output current
(continuou
s
output current ratio) (%)
In
s
tantaneou
s
maximum output current
(In
s
tantaneou
s
maximum output current)
Continuou
s
output current
(Continuou
s
output current)
× 100%
100
2
3
0
10000
1000
100
10
1
100
200
10000
1000
100
10
1
Detection time (
s
)
S
ERVOPACK output current
(continuou
s
output current ratio) (%)
In
s
tantaneou
s
maximum output current
(In
s
tantaneou
s
maximum output current)
Continuou
s
output current
(Continuou
s
output current)
× 100%