6 WIRING
6.2 External Input Connection Connector of the RD77MS
61
6
There are no signals of 2A_ and 2B_ at RD77MS2 use.
Signal name
Pin
No.
Signal details
Manual pulse generator power supply
output (+ 5 V DC) (5 V)
1A20
1A19
• Power supply for manual pulse generator. (+ 5 V DC)
Do not connect wires other than the signal wires of the manual pulse generator.
Input signal (SIN)
1A1 to
1A5,
1B1 to
1B5,
2A1 to
2A5,
2B1 to
2B5
Upper limit signal (FLS)
• This signal is input from the limit switch installed at the upper limit position of the
stroke.
• Positioning will stop when this signal turns OFF.
• When the home position return retry function is valid, this will be the upper limit
for finding the proximity dog signal.
Lower limit signal (RLS)
• This signal is input from the limit switch installed at the lower limit position of the
stroke.
• Positioning will stop when this signal turns OFF.
• When the home position return retry function is valid, this will be the lower limit
for finding the proximity dog signal.
Proximity dog signal
(DOG)
• This signal is used for detecting the proximity dog during the home position
return.
• The proximity dog OFF
ON is detected at the rising edge.
• The proximity dog ON
OFF is detected at the falling edge.
Stop signal (STOP)
• Input this signal to stop positioning.
• When this signal turns ON, the RD77MS will stop the positioning being
executed. After that, even if this signal is turned from ON to OFF, the system will
not start.
External command/
Switching signal (DI)
• Input a control switching signal during speed-position or position-speed
switching control.
• Use this signal as the input signal of positioning start, speed change request,
skip request and mark detection from an external device. Set the function to use
this signal in "[Pr.42] External command function selection". Set the signal in
"[Pr.95] External command signal selection".
Common (COM)
1A6
1A7
1B6
1B7
2A6
2A7
2B6
2B7
• Common for upper/lower limit, proximity dog, stop, and external command/switching signals.
Forced stop input signal (EMI)
1A8
• This signal is input when batch forced stop is available for all axes of servo amplifier.
EMI ON (Opened): Forced stop
EMI OFF (24 V DC input): Forced stop release
Forced stop input signal common
(EMI.COM)
1B8
Manual pulse generator power supply
output (+ 5 V DC) (5 V)
1A15
1B15
• Power supply for manual pulse generator (+ 5 V DC)
This power supply is used for manual pulse generator. It must not be used except for the manual pulse
generator power supply.
Manual pulse generator power supply
output (GND) (SG)
1A14
1B14
• Power supply for manual pulse generator (GND)
This power supply is used for manual pulse generator. It must not be used except for the manual pulse
generator power supply.
