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.
Co
ntr
o
ls
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
Torque
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 k
Ω
Circuit
Time
Constant
16
μ
s
Continued from previous page.
Item
Specification
×
100%
Coefficient of
s
peed fluctuation =
No-load motor
s
peed - Total-load motor
s
peed
Rated motor
s
peed