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Dyadic Systems – Mechatronics Cylinder Manual MF-005500-EN-48/63
6.2.2. Input signal details
[+24V]
Power input. The control power for the Mechatronics Cylinder is +5V generated within the servo
controller.
The alarm signal will be reset by turning OFF the main power input and CSTR signal turning ON after
the cause of the alarm is fixed.
[0V]
Common. This is common with the lower voltage (Ground) of the control power circuit and the lower
voltage side of serial interface.
[PC1] [PC2] [PC4] [PC8]
These are the destination position number inputs. When the input signal edge of CSTR changes (OFF
=> ON), the destination position numbers inputs are checked (their bit weight is 2
0
of PC1, 2
1
of PC2, 2
2
of PC4 and 2
3
of PC4). Please note that the inputs of PC1 to PC8 must be ready when the CSTR signal
changes from OFF to ON. If the input conditions of PC1 to PC8 change after the rising edge of the
CSTR input, there won’t be any influence to the motion (when the cylinder is configured in Normal
mode)
If the application requires only 2 places, only any one of the position number inputs is needed.
For example:
[PC1] input can select position numbers 0 and 1.
[PC2] input can select position numbers 0 and 2.
[PC4] input can select position numbers 0 and 4.
[PC8] input can select position numbers 0 and 8.
[CSTR]
This is a strobe input. When CSTR goes high (OFF => ON), the destination position numbers (PC1, 2,
4, and 8) are read in 4-bit binary and summed to determine which motion to run. Due to the internal
filter, the CSTR signal must be ON for 4ms or longer. If this signal edge is detected before homing has
been completed (when ZFIN output is turned OFF), the homing operation will be executed
automatically, after which the actuator will immediately run the requested motion.
The CSTR and PC1, 2, 4, and 8 inputs can theoretically be turned on at the same time, however, some
PLCs may have slight delays in the response of their outputs, in which case the PC1, 2, 4, and 8 inputs
may not finish switching before the rising edge of the CSTR input is registered. To be safe it is
recommended to switch the PC1 to 8 inputs at least 4ms before the CSTR input is turned ON.
When the CSTR signal is turned ON, the PFIN signal will be turned OFF. If the CSTR signal is kept ON
when the actuator has reached its destination, the PFIN signal won’t be turned ON. Please keep the
CSTR signal ON for at least 4ms and turn it off before the actuator finishes its move.
[ILK
]
The ILK input will either cancel or pause the motion of the actuator when the input status drops to 0VDC.
The teach pendant or PC Tool software can change this behavior. The default setting is the “Pause”
mode. The ILK input should be always turned ON for normal operation.
Details for the Pause mode (Default):
If the ILK signal is turned OFF during motion, the actuator will start to decelerate (at maximum or
programmed decal) then stop. This stop position is designated as the temporary destination
position but the original destination position is still stored.
When the ILK
signal turns back ON, the temporary destination position is deleted, and the original
destination position is set to the current destination. The moves restarts to the original destination
position.
If a new position command is executed (using PC1, 2, 4, 8 and CSTR) while the ILK signal is
turned OFF, the actuator will move to the new position after the ILK signal is turned back ON.
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