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3. SIGNALS AND WIRING
3.2.2 Signal explanations
For the I/O interfaces (symbols in I/O column in the table), refer to Section 3.2.3.
(1) Connector applications
Connector Name Function/Application
CN1A Connector for bus cable from preceding axis.
Used for connection with the controller or preceding-axis
servo amplifier.
CN1B Connector for bus cable to next axis
Used for connection with the next-axis servo amplifier or
for connection of the termination connector.
CN3
Communication connector
(I/O signal connector)
Used for connection with the personal computer.
Serves as an I/O signal connector when the personal
computer is not used.
(2) I/O signals
(a) Input signal
Signal Symbol
Connector Pin
No.
Function/Application I/O Division
Forced stop EM1
CN3
20
Disconnect EM1-SG to bring the servo motor to a forced stop
state, in which the servo is switched off and the dynamic
brake is operated.
In the forced stop state, connect EM1-SG to reset that state.
DI-1
(b) Output signals
Signal Symbol
Connector Pin
No.
Function/Application I/O Division
Electromagnetic brake
interlock
MBR
CN3
13
MBR-SG are disconnected when a forced stop is made valid,
an alarm occurs in the interface unit or drive unit, or the
servo switches off.
With IFU parameter No. 10, choose the axis number of the
drive unit that will use this signal.
DO-1
Analog monitor 1 MO1
CN3
4
Used to output the data set in IFU parameter No.3 to across
MO1-LG in terms of voltage. Resolution 10 bits
Analog
output
Analog monitor 2 MO2
CN3
14
Used to output the data set in IFU parameter No.4 to across
MO2-LG in terms of voltage. Resolution 10 bits
Analog
output
Analog monitor 3 MO3
CN3
7
Used to output the data set in IFU parameter No.5 to across
MO3-LG in terms of voltage. Resolution 10 bits
Analog
output
(c) Power supply
Signal Symbol
Connector Pin
No.
Function/Application
Power input for digital
interface
VIN
CN3
8
Driver power input terminal for digital interface.
Used to input 24VDC (200mA or more) for input interface.
Common for digital
interface
SG
CN3
3
Common terminal to VIN. Pins are connected internally.
Separated from LG.
Control common LG
CN3
1
11
Common terminal to MO1, MO2 and MO3.
Shield SD Plate Connect the external conductor of the shield cable.