
7.START-UP B-64004EN/02
- 112 -
7.2 START-UP OF THE SAFETY FUNCTION
7.2.1 Initial start-up
Main flow
Step 1
Initial state
First, check that the machine starts up normally when the dual
check safety function is disabled.
Preparation 1 Disable the dual check
safety function.
Bit 6 (DCE) of PRM No. 1902 =
0
Preparation 2 Wire to control the
MCC
Connect the relay to control
MCC with I/O output
NOTE
When the dual check safety function is disabled,
the MCC Off signal (*DCALM, *MCFVx, *MCFPs)
is set to “1”. (The MCC Off signal (*MCF) is
changed according to the emergency stop signal. )
So, make a ladder program to output DO signal to
control the relay for the MCC control according to
the MCC Off signal.
Step 2
DCS PMC side I/O setting
Make the settings as for the I/O Link#3,#4 or Profibus. Make a
ladder program for the safe related I/O. (PMC/DCS PMC)
In case Profibus is used, please refer to the sub-section “5.6
Assignment of PROFIBUS DI/DOs to Dual Check Safety PMC”
Step 3
Safety parameter input
Enable the dual check safety function, and enter the safety
parameters.
Preparation 1 Enable the dual check
safety function.
Bit 6 of PRM No. 1902 = 1
Set the safety parameters indicated in the table below.
Parameter setting Meaning
980 Machine group number of each path
981 Absolute path number of each axis
982 Absolute path number of each spindle
Disable dual check
safety
Machine start-up
Safety related I/O
setting
Safety paramete
input