Hey there! Dealing with those 6-month lead times on Omron drives is definitely a headache we're all facing in the industry. Here are some creative strategies that have worked for other purchasing managers:

First, consider setting up a supplier-managed inventory arrangement. You can work with your supplier to have them hold inventory of these long-lead components for you. Basically, you issue a PO for the components, and they hold them for a set period (say 90 days) while you commit to placing a finished goods order within that timeframe. This spreads the risk and keeps components available.

Another approach is implementing dynamic safety stock calculations. Instead of static buffer stock, use tools that adjust safety stock levels based on real-time demand patterns, supplier lead times, and risk levels. This helps you maintain just enough buffer without tying up too much capital.

On the supplier relationship side, try to build deeper partnerships with your Omron distributors. See if you can get priority allocation or advance notice of production schedules. Some companies have had success with multi-sourcing strategies - identifying alternative suppliers for similar drives (like Yaskawa, ABB, or Delta) that can serve as backups.

Also, consider implementing end-to-end supply chain visibility tools. These give you real-time data on inventory positions, supplier statuses, and shipment progress so you can anticipate delays and adjust production schedules proactively.

The key is being proactive rather than reactive. Build relationships, use technology for better visibility, and create flexible inventory arrangements that work for both you and your suppliers.