Yamaha SRCP - Manual (Page 37)

3-
9
3
I/O INTERF
ACE
3-3 Output Signal Description
3-3-2 General-purpose output (DO0 to DO4)
These general-purpose outputs are available to users for freely controlling on/off operation in a pro-
gram.
These outputs are used in combination with an external 24V power supply, to drive loads such as
solenoid valves and LED lamps. These outputs of course, can be directly connected to a PLC input
circuit.
All general-purpose outputs are reset (turned off) when the SRCP controller is turned on or the
program is reset.
* When PRM33 ("Operation at return-to-origin complete" parameter) is set to 1 or 3, DO4 does
not turn off even if the program is reset. Similarly, when PRM46 ("Servo status output" param-
eter) is set to 1, DO3 does not turn off even if the program is reset.
General-purpose output (DO0 to DO4) can be used to perform the following specific functions by
parameter setting.
Function name
Alarm output
Return-to-origin complete output
Servo-ON status output
Zone output
Parameter
PRM32 (Alarm number output)
PRM33 (Operation at return-to-origin complete)
PRM46 (Servo status)
PRM53 (Zone output)
Usable general-purpose input
DO0 to DO4
DO4
DO3
DO0 to 3
For more details, see "5-2 Parameter Description".
3-3-3 Feedback pulse output (PA
±, PB±, PZ±, PZM±)
This outputs current position data as differential output.
Relation between pulse output and phase
A17:PA+
B17:PA-
A18:PB+
B18:PB-
A19:PZ+
B19:PZ-
CW direction CCW direction Output pin
Number of output pulses and Z-phase timing
1 [pulses/ µm]
*: Number of output pulses is a count after being multiplied by 4.
Every 1024 µm
Number of output pulses* Z-phase output timing
ZM phase
PHASER series
The ZM phase is output at the magnetic pole detection points of the PHASER series. Refer to the drawing below.
ZM phase
Magnetic pole detection point