Yaskawa 120 Series I/O Modules - Manual (Page 245)

6 Installation and Wiring
6.2.3 Wiring DC I/O Modules
6-18
b) Use a regulated DC power supply for DC power. When a simple direct current such
as full wave rectification must be used, attach a smoothing capacitor to reduce ripple
as much as possible and heed the following:
(1) Instantaneous output voltage including ripple must always be within the follow-
ing ranges:
• DC Input Modules: 9 to 30 VDC
• DC Output Modules: 10.2 to 30 VDC
• Relay Contact Output Modules: 100 mV to 125 VDC
(2) Output voltage must not exceed the following voltages, even momentarily,
including when the power is turned ON or OFF.
• DC Input Modules: 30 VDC
• DC Output Modules: 30 VDC
• Relay Contact Output Modules: 125 VDC
(3) Attach a noise filter in front of the rectifying element to prevent surge voltage
from rushing inside.
(4) When connecting electromagnetic contactors to the output of full wave rectifier
circuits, prevent surge voltage by attaching a surge suppressor between the
outputs on the I/O Module side of the electromagnetic connectors.
Table 6.6 DC I/O Modules Requiring External DC Power Supply
Name Model No. External Power Supply Specifications
12/24-VDC 16-point
Input Module JAMSC-120DDI34300 Rated voltage: 12/24 VDC
Maximum allowable voltage: 30 VDC
Standard operating range:
ON voltage range: 9 VDC
OFF voltage range: 5 VDC
12/24-VDC 32-point
Input Module JAMSC-120DDI35400
12/24-VDC 64-point
Input Module JAMSC-120DDI36400
12/24-VDC 8-point
Output Module JAMSC-120DDO33000 Rated voltage: 12/24 VDC
Allowable voltage range: 10.2 to 30.0 VDC
12/24-VDC 16-point
Output Module
(sinking) JAMSC-120DDO34310
12/24-VDC 16-point
Output Module
(sourcing) JAMSC-120DDO34320
12/24-VDC 32-point
Output Module
(sinking) JAMSC-120DDO35410
12/24-VDC 64-point
Output Module
(sinking) JAMSC-120DDO36410
Relay Contact 16-point
Output Module
(DC loads) JAMSC-120DRA84300 Rated voltage: 24 VDC
Maximum load voltage: 125 VDC
Minimum load voltage: 100 mVDC