2.3 Specifications
2-10
*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.
Controls
Posi-
tion
Con-
trol
Feedforward
Compensation
0% to 100%
Output Signal Positioning Com-
pleted Width Setting
0 to 1,073,741,824 reference units
Input Sig-
nals
Refer-
ence
pulses
Refer-
ence
Pulse
Form
One of the following is selected:
Sign + pulse train, CW + CCW pulse trains, and two-phase
pulse trains with 90° phase differential
Input
Form
Line driver or open collector
Maxi-
mum
Input
Fre-
quency
• Line Driver
Sign + pulse train or CW + CCW pulse trains: 4 Mpps
Two-phase pulse trains with 90° phase differential: 1 Mpps
• Open Collector
Sign + pulse train or CW + CCW pulse trains: 200 kpps
Two-phase pulse trains with 90° phase differential: 200
kpps
Input
Multiplica-
tion
Switching
1 to 100 times
Clear Signal
Position deviation clear
Line driver or open collector
Torq u e
Con-
trol
Input Signal
Refer-
ence
Voltage
• Maximum input voltage: ±12 V (forward torque output for
positive reference).
• 3 VDC at rated torque (default setting).
Input gain setting can be changed.
Input
Imped-
ance
Approx. 14 kΩ
Circuit
Time
Constant
16 μs
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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