NPM PCL6113, User Manual

Page: 90 / 131

- 84 -
11-6. External start, simultaneous start
11-6-1. signal
This LSI can start when triggered by an external signal on the terminals. Set MSY (bits 18 and 19)
= 01 in the PRDM register (operation mode) and the LSI will start feeding when the goes LOW.
When you want to control multiple axes using more than one LSI, connect the terminal on each
LSI and set the axes to "waiting for input", to start them all at the same time. In this example a
start signal can be output through the terminal.
The input logic on the terminals cannot be changed.
By setting the RIRQ register (event interrupt cause), the signal can be output together with a
simultaneous start (when the input is ON). By reading the RIST register, the cause of an event
interrupt can be checked.
The operation status (waiting for input), and status of the terminal (OR of the signals)
can be monitored by reading the RIST register, or RSTS register (extension status), respectively.
<How to make a simultaneous start>
Set MSY0 to 1 (bits 18 and 19) in the RMD register for the axes you want to start. Write a start command
and put the LSI in the "waiting for input" status. Then, start the axes simultaneously by either of
the methods described below.
1) By writing a simultaneous start command, the LSI will output a one shot signal of 8 reference clock
cycles (approx. 0.4 µsec when CLK = 19.6608 MHz) from the terminal.
2) Input hardware signal from outside.
Supply a hardware signal by driving the terminal with open collector output (74LS06 or equivalent).
signals can be supplied as level trigger or edge trigger inputs. However, when level trigger input is
selected, if = L or a start command is written, the axis will start immediately.
After connecting the terminals on each LSI, each axis can still be started independently using start
commands.
To
release the "waiting for input" condition, write an immediate stop command (49h).
1) To start axes controlled by different LSIs simultaneously, connect the LSIs as follows.
CSTA CSTA CSTA CSTA
+3.3V
5 k to 10 k-ohm
2) To start simultaneously from an external circuit, or use a single axis as an external start, connect the
LSIs as follows.
For start signal, supply a one shot input signal with a pulse width of at least 4 reference clock cycles
(approx. 0.2 µsec when CLK = 19.6608 MHz).