Precautions On Wiring - YASKAWA MEMOCON GL120 User Manual

6 Installation and Wiring
6.4.1 AC Input Modules
6.4

Precautions on Wiring

6.4.1
1) Power Supply Phasing for Input Signals
CAUTION
2) Connecting Inductive Loads
CAUTION
This section describes precautions when using 120-series I/O Modules.
6.4.1 AC Input Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-32
6.4.2 AC Output Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-35
6.4.3 DC Input Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-40
6.4.4 DC Output Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-45
6.4.5 Connections between AC I/O Modules - - - - - - - - - - - - - - - - - - - - - 6-49
6.4.6 Connections between DC I/O Modules - - - - - - - - - - - - - - - - - - - - - 6-50
6.4.7 Analog Input Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-50
6.4.8 Analog Output Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-51
6.4.9 External Power Supplies - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-52
AC Input Modules
Connect power supplies of the same phases to the common 1 and common 2 of the
AC I/O Module.
If power supplies of different phases are connected, overheating or fire may
occur.
100 VAC
(200 VAC)
Fig. 6.8 Power Supply Phasing for Input Signals
If connecting an inductive load in parallel with AC Input Module, connect the surge
absorber in parallel with the inductive load to prevent surge voltage.
Failure to connect a surge absorber may result in damage to the AC Input Mod-
ule.
Input 1
Input 8
Common 1
Input 9
Input 16
Common 2
6-32
Connect power
supply with the
same phase.