IAI America MSCON - Manual (Page 156)

3.7
Control and functions of Input and output signals of Modes other than Remote I/O Mode Power Supply and Cutof
f
148
(5) Servo ON command (SON) PLC Output Signal
Operation ready (SV) PLC Input Signal
Positioning complete (PEND) PLC Input Signal
Operation
Mode
Positioner 1 Simple Direct Direct numeric
specification
Direct numeric
specification 2
Positioner 2 Positioner 3
{ : Equipped
× : Not equipped
{ { { { { {
Servo ON command SON is the input signal making the servo motor of the actuator operable.
1) Once the Servo ON is executed and the operation comes available, Operation Ready SV
starts turned ON. The positioning complete signal PEND turns ON at the same time. Also,
the axis status LED (SV) on the front panel corresponding for the axis number turns ON in
green.
2) With the power being supplied, then controller cannot be operated while the SV signal
remains OFF. If SON Signal is turned OFF during the actuator operation, the actuator
decelerates and stops with the emergency stop torque, servo turns OFF, and the motor goes
into the free-run condition. The brake (option) is of release-in-excitation type. Therefore, the
brake gets released when excitation is ON and the brake works (locks) when excitation is
OFF.
Dynamic Brake
Brake Excitation Lock
Release
It may differ due to operation condition
and load condition.
SON
SV
20ms 100ms
PEND (Note)
Lock
Release
(MSCON → PLC)
(PLC → MSCON)
(MSCON → PLC)
(Note 1)
Note 1: PEND would not turn ON in the pause condition.