Mitsubishi Electric MELSEC iQ-F Series - Page 84

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6 Replacement from FX3UC to FX5UC
6.3 Selection of Substitute Models
Precautions Regarding the Hardware
Comparison of FX3UC and FX5UC and Precautions for Replacement
The following list shows precautions of the hardware. Check details in the manuals of each models when replacing.
■Difference and precautions regarding the main hardware of FX3UC and FX5UC
Item Difference Precautions
FX3UC FX5UC
Extension of FX2N, FX2NC, FX3U,
and FX3UC
Extension possible Extension is possible only for
certain modules.
FX5-CNV-BUSC or FX5-CNV-
BUS is required for extension.
Connection is not possible for some intelligent
modules of FX3U.
Input hardware filter
(When the digital filter is 0)
• High-speed counter
• Input interruption function
• Pulse catch function
X0 to X5: 5 s
X6 and X7: 50 s
X10 to X17: 200 s
■In the case of FX5UC-32M
X0 to X5:
•ON: 2.5 s or less
•OFF: 2.5 s or less
X6 to X17:
•ON: 30 s or less
•OFF: 50 s or less
■In the case of FX5UC-64M
and FX5UC-96M
X0 to X7:
•ON: 2.5 s or less
•OFF: 2.5 s or less
X10 to X17:
•ON: 30 s or less
•OFF: 50 s or less
X20 or later:
•ON: 50 s or less
• OFF: 150 s or less
Noises that were not detected by FX3UC may
possibly be captured as an input. Take external
measures against noise, or set an appropriate
input response time parameter.
Input signal current X0 to X5: 6 mA
X6 and X7: 7 mA
X10 or later: 5 mA
X0 to X17: 5.3 mA
X20 or later: 4 mA
The input signal current has been lowered, so it
is necessary to check the specification of the
external devices when replacing.