Important wiring considerations, Important wiring considerations -4 – Rockwell Automation 1746-HSCE2 Multi-Channel High Speed Counter Module User Manual
Page 44

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.).