1 Abstract
8 SD780 Series Servo Technical Manual
logic. More details refer to chapter 3.9)
Item
Specification
Communication
function
Bus
communication
(
CN6
)
RS-485
Standard
CAN
Optional
M-II
Optional
M-III
Optional
PROFINET
Optional
EtherCAT
Optional
USB
communication
(CN7)
Connecting device
PC, standard, micro-USB(android USB)
Communication
specification
Compliant with USB2.0 specification (12Mbps)
Display function
CHARGE,8-segment LED × 5 digits
Panel operator function
Button switch × 4
Dynamic brake (DB)
Activated when a servo alarm or overtraveling occurs
or when the power supply for the main circuit or
servomotor is OFF
Regeneration treatment
Function can be built in / external
Overtravel (OT) prevention
Dynamic brake stop, deceleration to a stop, or free
run to a stop at P-OT or N-OT
Protective function
Over current, over voltage, under voltage, overload,
regenerative fault, encoder disconnection, etc
Accessibility
Gain adjustment, alarm recording, JOG operation,
origin search, etc
Control
Speed
control
Soft start time setting
0s
～
30s (acceleration and deceleration can be set
separately)
Input
signal
Command
voltage
Maximum input voltage: ± 10V (motor forward
rotation when positive voltage command)
• Rated speed at DC6V [factory setting]
Input gain setting can be varied
Input
Impedance
About 66kΩ
Circuit Time
Constant
30μs
Internal
set
speed
control
Direction of
rotation
Use /SPD-D signal selection
Speed
selection
Use SPD-A/SPD-B signal input (1st
～
3rd speed
selection)
Stop or change to other control modes when both
sides are OFF
Item
specification
Control
Position
control
Feedforward
compensation
0%
～
100%
Positioning Complete
width setting
0
～
1073741824 Command unit
Input
signal
Reference
pulse
Reference
pulse form
Choose one of the following:
pulse sequence, CW +
