Yaskawa 120 Series I/O Modules - Manual (Page 166)

4.1 Analog Input Specifications
4-19
4
6) External Appearance
LED Color State Indication when ON
RDY Green Lit Module is normal.
Flashing Initial check error has occurred.
Not lit WDT timeout error has occurred.
ACT Green Lit Module is processing I/O.
Not lit CPU Module is in the STOP state or I/O pro-
cessing error has occurred.
ERR Red Lit Overrange is detected at one of the channels,
CH1 to CH4.
Flashing Parameter check sum error has occurred.
Not lit Module is normal.
CH 1 to CH 4 Green Lit Input signal of indicated channel exceeds the
input signal range shown below.
• 20.48 mA < Input signal
• Input signal < 2.0 mA
Flashing Input signal of indicated channel exceeds the
input signal range shown below.
• 20.0 mA < Input signal < 20.48 mA.
• 2.0 mA < Input signal < 4.0 mA.
Removable terminal block
for field connections
Hinged terminal cover
Signal label insert
Color code
(light green)
LED area
Module mounting screw
(Use a M4 Phillips screwdriver.)
Module description (120ACI02000)
External wiring terminal
(Use a M3 Phillips screwdriver.)
Terminal block mounting screw
(Use a M3 Phillips screwdriver.)
LED Area
120 ACI 021 00
ACT
CH1
CH2
CH3
CH4 ERR RDY