Important wiring considerations, Important wiring considerations -4 – Rockwell Automation 1746-HSCE2 Multi-Channel High Speed Counter Module User Manual

Page 44

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Publication 1746-UM002B-EN-P - August 2004

3-4 Installation and Wiring

1. Make sure your SLC power supply has adequate reserve current

capacity. The module requires 250 mA at +5V dc.

2. Align the full-sized circuit board with the chassis card guide as

shown in Figure 3.2. The first slot of the first chassis is reserved
for the processor.

3. Slide the module into the chassis until the top and bottom

latches catch. To remove the module, press the release clips at
the top and bottom of the module and slide it out.

4. Cover all unused card slots with the Card Slot Filler, catalog

number 1746-N2.

Figure 3.2 Installing the Module

Important Wiring
Considerations

Use the following guidelines when planning the system wiring for the
module:

• Install the SLC500 system in a NEMA-rated enclosure.
• Disconnect power to the SLC processor and the module before

wiring.

• Make sure the system is properly grounded.
• Group this module and low voltage DC modules away from AC

I/O or high voltage DC modules.

• Shielded cable is required for high-speed input signals A, B, and

Z. Use individually shielded, twisted-pair cable lengths up to
300 m (1000 ft.).

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