Yaskawa 120 Series I/O Modules - Manual (Page 273)

6 Installation and Wiring
6.4.4 DC Output Modules
6-46
2) Connecting Inductive Loads
If connecting an inductive load to the DC Output Module, connect the flywheel diode
in parallel with the inductive load to prevent surge voltage.
Failure to connect a flywheel diode may result in damage to the DC Output
Module.
If connecting a contact to an inductive load of the DC Output Module, connect the
flywheel diode in parallel with the inductive load to prevent surge voltage.
Failure to connect a flywheel diode may result in damage to the DC Output
Module.
Although the capacity of flywheel diode must be adjusted to the load, the following
diode is recommended for general applications:
• H14E series Diode (manufactured by Hitachi Ltd.) or equivalent.
Fig. 6.26 Connceting Inductive Loads
Fig. 6.27 Connecting Contacts to Inductive Loads
CAUTION
CAUTION
Flywheel diode
12 VDC
(24 VDC)
Inductive
load
Load
Output
Output
-Common 1
+Common 1
12 VDC
(24 VDC)
Flywheel diode
Inductive
load
Load
Output
Output
-Common 1
+Common 1