YASKAWA MEMOCON GL120 User Manual page 273

6 Installation and Wiring
6.4.4 DC Output Modules
2) Connecting Inductive Loads
CAUTION
CAUTION
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.
Output
Output
-Common 1
+Common 1
Fig. 6.26 Connceting Inductive Loads
Output
Output
-Common 1
+Common 1
Fig. 6.27 Connecting Contacts to Inductive Loads
12 VDC
Flywheel diode
(24 VDC)
Inductive
load
12 VDC
Flywheel diode
(24 VDC)
Inductive
load
6-46
Load
Load