13.5 Mitsubishi ASD Protocol
•The gateway acts as a Mitsubishi protocol master via its RS-485 ports. Adjustable speed drives such as the FR-A500/E500/F500 series and F700- series that support the Mitsubishi protocol can be accessed. Also supported are MGI Technologies, Inc. M3000, M4000 and M5000-series drives that support the Mitsubishi protocol.
•For 500-series drives, the gateway can connect to the ASD via either the PU (panel) connector, or via an optional FR-A5NR computer link board. Because the ASDs externally present a 4-wire RS-485 network, connecting them to the gateway requires jumpering the network wires for 2-wire format (i.e. connecting SDA-RDA and SDB-RDB).
When Using an FR-A5NR Card Connect as shown in Figure 28.
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
A | | | B | | Signal |
(TB:1) | | | (TB:2) | | Ground |
| | | | | | | (TB:3) |
| | | | | | | | |
Figure 28: FR-A5NR Connections
When Using the PU Port
Connecting to the drive’s RJ-45 PU port will likely require building a custom cable. For simplicity, a standard 8-conductor Ethernet patch cable can be used as a starting point. There are two standard color schemes for the wire pairs in such cables as defined by the Electronic Industry Association / Telecommunications Industry Association (EIA-TIA). These two standards are called T-568B and T-568A (refer to Figure 29). The most common color scheme is T-568B, and will therefore be the one used for this example connection. If starting with a cable wired according to the T-568A specification, just interchange the colors to achieve the same pin connections.
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