What happens when a coin is suspended?
Trading the coins is disabled
Deposits also get disabled
Sometimes Withdrawals could be disabled but in more cases users are allowed to withdraw the coins to another address or platform
How long does it take for Binance to release from suspension? Especially from conversion.
Most of the time when the coin is suspended. It's indefinite (delisted) but if it is due to other issues such as technical. The time frame would vary depending on how quick the issue is resolved. The Announcements by Binance can also be of guide to you.