8 System Setup
8.23Safety Logic Circuit
8-275
182582-1CD
182582-1CD
MH900, DX200 Controller
<The safety logic circuit: example 2>
1. The emergency button of the programming pendant is pressed, and
the first universal input safety signal of the I/O circuit board
(type:YSF22 ჱ -E) “1” is OFF, and the I/O circuit board
(type:YSF22 ჱ -E) of the first universal output safety signal is ON after
one second passed.
• Signal 1: Programming pendant emergency button (PPESP)
• Signal 2: NOT machine safety universal input signal 1
(#1 GSIN1)
• Logic: AND
• Output signal: Machine universal output signal 0 (#1 GSOUT0)
• Delay timer: ON delay timer1 (TM1 ON DELAY) 1 second
2. Displays the time chart.
PPESP and NOT #1 GSIN1 are ON, and
ON DELAY TIM1 reached to the specified value
so that #1 GSOUT1will be ON
OFF
ON
OFF
ON
OFF
ON
0
ON(press)
PPESP(press)
Setting value
Timer (start)
Timer (reaching the specified value)
OFF(release)
PPESP
#1 GSIN1
#1 GSOUT1
NOT
#1 GSIN1
TM1 ON
DELAY
GSIN1: OFF
NOT GSIN1: ON