Servopack Overload Protection Characteristics - YASKAWA SGD7S 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.
10000
(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.
2-4
SERVOPACK Model:
1000
SGD7S-3R8, -5R5, -7R6,
-120, -180, -200, -330,
-470, -550, -590, or -780
100
10
SERVOPACK Model:
SGD7S-R70, -R90,
-1R6, or -2R8
1
100 200 230
SERVOPACK output current
(continuous output current ratio) (%)
Instantaneous maximum output current
Continuous output current
(Instantaneous maximum output current)
× 100%