2.1 Ratings and Specifications
2.1.3 Specifications
2-8
*1. If you combine a Σ-7-Series SERVOPACK with a Σ-V-Series Option Module, the following Σ-V-Series SERVO-
PACKs specifications must be used: a surrounding air temperature of 0°C to 55°C and an altitude of 1,000 m
max. Also, the applicable surrounding range cannot be increased by derating.
*2. The coefficient of speed fluctuation for load fluctuation is defined as follows:
*3. Always perform risk assessment for the system and confirm that the safety requirements are met.
Displays/Indicators
CHARGE, PWR, CN, L1, and L2 indicators, and one-digit seven-seg-
ment display
MECHA-
TROLINK-III
Communi-
cations
Communications Pro-
tocol
MECHATROLINK-III
Station Address
Settings
03h to EFh (maximum number of slaves: 62)
The rotary switches (S1 and S2) are used to set the station address.
Transmission Speed 100 Mbps
Transmission Cycle
125 μs, 250 μs, 500 μs, 750 μs,
1.0 ms to 4.0 ms (multiples of 0.5 ms)
Number of Transmis-
sion Bytes
32 or 48 bytes/station
A DIP switch (S3) is used to select the number of transmission bytes.
Reference
Method
Performance
Position, speed, or torque control with MECHATROLINK-III communi-
cations
Reference Input
MECHATROLINK-III commands (sequence, motion, data setting, data
access, monitoring, adjustment, etc.)
Profile
MECHATROLINK-III standard servo profile
MECHATROLINK-III Communica-
tions Setting Switches
Rotary switch (S1 and S2) positions: 16
Number of DIP switch (S3) pins: 4
Analog Monitor (CN5)
Number of points: 2
Output voltage range: ±10 VDC (effective linearity range: ±8 V)
Resolution: 16 bits
Accuracy: ±20 mV (Typ)
Maximum output current: ±10 mA
Settling time (±1%): 1.2 ms (Typ)
Dynamic Brake (DB)
Activated when a servo alarm or overtravel (OT) occurs, or when the
power supply to the main circuit or servo is OFF.
Regenerative Processing
Built-in (An external resistor must be connected to the SGD7S-470A to
-780A.)
Refer to the following catalog for details.
AC Servo Drives Σ-7 Series (Catalog No.: KAEP S800001 23)
Overtravel (OT) Prevention
Stopping with dynamic brake, deceleration to a stop, or coasting to a
stop for the P-OT (Forward Drive Prohibit) or N-OT (Reverse Drive Pro-
hibit) signal
Protective Functions Overcurrent, overvoltage, low voltage, overload, regeneration error, etc.
Utility Functions Gain adjustment, alarm history, jogging, origin search, etc.
Safety
Functions
Inputs /HWBB1 and /HWBB2: Base block signals for Power Modules
Output EDM1: Monitors the status of built-in safety circuit (fixed output).
Applicable
Standards
*3
ISO13849-1 PLe (Category 3), IEC61508 SIL3
Applicable Option Modules
Fully-closed Modules and Safety Modules
Note: You cannot use a Fully-closed Module and a Safety Module together.
Continued from previous page.
Item Specification
× 100%
Coefcient of speed uctuation =
No-load motor speed - Total-load motor speed
Rated motor speed
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