Chapter 13 Troubleshooting
13-12
(e)
The counter input does not function
The CPU operates, but the input data is incorrect
Set the operating mode for the
peripheral devices
Note: The operating mode can
only be changed while the
CPU is being stopped
Set the I/O functions on devices
such as peripheral devices
Turn on the setting enabling
request flag ON using peripheral
devices
•
Check the input pulse
•
Malfunction due to noise
YES
NO
YES
NO
YES
NO
YES
NO
Set the pulse input to 5kHz or
less
NO
YES
Check the input area
Check the input area
•
Check the input signal source
•
Malfunction due to noise
•
Cable is disconnected
Does it operate as
normal input?
Are the operating mode
settings correct?
Are the various
settings valid?
Are the I/O function
settings correct?
Are pulses that exceed
5 kHz being input?
Summary of Contents for HIDIC MICRO-EH
Page 1: ...HITACHI PROGRAMMABLE CONTROLLER APPLICATION MANUAL NJI 350B X ...
Page 12: ...MEMO ...
Page 14: ...Chapter 1 Features 1 2 MEMO ...
Page 50: ...Chapter 4 Product lineup and wiring 4 18 MEMO ...
Page 196: ...Chapter 5 Instruction Specifications 5 146 ...
Page 263: ...Chapter 11 Communication Specifications 11 10 MEMO ...