4.3 Servopack Ratings and Characteristics
— 4-21 —
SGDF Servopack
B9CS
B5CS
B3CS
Input Signal
Speed
Reference
Rated Reference
Voltage
±
6 VDC (forward motor rotation with positive
reference) at rated speed
Variable setting range:
±
2 to
±
10 VDC at rated
speed
Input Impedance Approx. 30 k
Ω
Circuit Time
Constant
Approx. 47
µ
s
Torque
Reference
Rated Reference
Voltage
±
3 VDC (forward motor rotation with positive
reference) at rated torque
Variable setting range:
±
1 to
±
10 VDC at rated
torque
Input Impedance Approx. 30 k
Ω
Circuit Time
Constant
Approx. 47
µ
s
I/O Signals
Position
O
Output Form
Phase-A, -B, -C line driver
/
g
Output
Frequency
Dividing Ratio
(16 to N) /N N=1024
*4
Sequence Input (2 Inputs)
Servo ON, P drive (or motor forward/reverse by
zero-clamp drive reference, or contact input
speed control), alarm reset, current limit (select
from parameters)
Sequence Output (2 Outputs) Current limit detection,TGON, speed
coincidence, external brake interlock, servo
alarm (servo alarms are fixed, other settings are
selected from parameters)
Protective Functions
Overcurrent, overload, overspeed, reference
input read error, overrun prevention, CPU error,
encoder error
Indicators
LED indicators
Red: Alarm, Green: Ready
Others
Torque control, zero-clamp operation (position
loop stop), soft start/stop, speed coincidence,
brake interlock signal output, JOG run,
autotuning
*
1
Use within the ambient temperature range. When enclosed in a box, the internal tem-
peratures must not exceed the ambient temperature range.
*
2
The lowest speed of the speed control range is the speed at which the motor does not
stop under 100% load.
*
3
Speed regulation is defined as follows:
Speed regulation
=
No-load-speed – Full-load-speed
Rated speed
×
100%
The motor speed may change due to voltage variations or amplifier drift and changes
in processing resistance due to temperature variation.
These ratios of the speed changes to the rated speed represent the speed regulation
due to voltage and temperature variations.
*
4
N is the number of encoder pulses.
4
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