11 TROUBLESHOOTING
11.4 Examples of Troubles with the I/O Module
87
11
■
Action
Before turning on or off the external power supply, check that the rise time of the external power supply is 10ms or more.
Then, install a switch (SW1) to the primary side of the external power supply.
When installing the switch to the secondary side, connect a capacitor and resistor, and increase the rise time (10ms or more).
• Sink output
• Source output
R1: Several tens of ohms
Power capacity
(External power supply current
*1
)
2
Resistance value
(3 to 5)
*2
C1: Several hundreds of microfarads 50V
(Example)
R1 = 40
, C1 = 300
F
Time constant is calculated as shown below.
C1
R1 = 300
10
- 6
40
= 12
10
-3
s
= 12ms
*1 For the current consumption of the external power supply for the module, refer to the manuals.
*2 Select the power capacity of resistor to be 3 to 5 times as large as the actual power consumption.
SW1
Output module
Secondary side
Primary side
External power supply
Y0
SW
R1
C1
CTL+
COM-
Load
24VDC
Y0
SW
R1
C1
CTL-
COM+
Load
24VDC
Summary of Contents for NZ2MFB1-32D
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Page 14: ...12 1 PRODUCT LINEUP 1 3 I O Combined Module MEMO ...
Page 16: ...14 2 PART NAMES MEMO ...
Page 43: ...4 PROCEDURES BEFORE OPERATION 41 4 MEMO ...
Page 45: ...5 SYSTEM CONFIGURATION 43 5 MEMO ...
Page 76: ...74 9 PROGRAMMING 9 2 Program Example Program example ...
Page 78: ...76 10 MAINTENANCE AND INSPECTION MEMO ...
Page 119: ...APPX Appendix 8 External Dimensions 117 A MEMO ...
Page 121: ...I 119 MEMO ...
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