2.1 General Specifications
2.1.1
Σ
-7W
2-2
2.1
General Specifications
This section gives the general specifications of SERVOPACKs.
Specifications that are indicated by
are unique to the SERVOPACKs with the HWBB func-
tion.
2.1.1
Σ
-7W
Item
Specification
Control Method
IGBT-based PWM control, sine wave current drive
Feedback
With Rotary
Servomotor
Serial encoder: 20 bits or 24 bits (incremental encoder/absolute
encoder)
22 bits (absolute encoder)
With Linear
Servomotor
•
Absolute linear encoder (The signal resolution depends on the abso-
lute linear encoder.)
•
Incremental linear encoder (The signal resolution depends on the
incremental linear encoder or Serial Converter Unit.)
Environ-
mental
Conditions
Surrounding Air Tem-
perature
-5
°
C to 55
°
C
(With derating, usage is possible between 55
°
C and 60
°
C.)
Refer to the following manual for derating specifications.
Σ
-7-Series
Σ
-7W SERVOPACK with MECHATROLINK-III Communica-
tions References Product Manual (Manual No.: SIEP S800001 29)
Storage Temperature -20
°
C to 85
°
C
Surrounding Air
Humidity
95% relative humidity max. (with no freezing or condensation)
Storage Humidity
95% relative humidity max. (with no freezing or condensation)
Vibration Resistance
4.9 m/s
2
Shock Resistance
19.6 m/s
2
Degree of Protection
IP20
Pollution Degree
2
•
Must be no corrosive or flammable gases.
•
Must be no exposure to water, oil, or chemicals.
•
Must be no dust, salts, or iron dust.
Altitude
1,000 m max.
(With derating, usage is possible between 1,000 m and 2,000 m.)
Refer to the following manual for derating specifications.
Σ
-7-Series
Σ
-7W SERVOPACK with MECHATROLINK-III Communica-
tions References Product Manual (Manual No.: SIEP S800001 29)
Others
Do not use the SERVOPACK in the following locations: Locations sub-
ject to static electricity noise, strong electromagnetic/magnetic fields, or
radioactivity
Applicable Standards
Refer to the following section for details.
Compliance with UL Standards, EU Directives, and Other Safety Stan-
Mounting
Base-mounted
Note: Rack-mounted SERVOPACKs are not available.
Perfor-
mance
Speed Control Range
1:5000 (At the rated torque, the lower limit of the speed control range
must not cause the Servomotor to stop.)
Coefficient of Speed
Fluctuation
*1
±
0.01% of rated speed max. (for a load fluctuation of 0% to 100%)
0% of rated speed max. (for a load fluctuation of
±
10%)
±
0.1% of rated speed max. (for a temperature fluctuation of 25
°
C
±
25
°
C)
Torque Control Preci-
sion (Repeatability)
±
1%
Soft Start Time
Setting
0 s to 10 s (Can be set separately for acceleration and deceleration.)
Continued on next page.
