求翻译：1ZC在启动指令接收后，一般设有3-5秒旁路R.我们出厂一般设置在3.5秒。R只是在启动时投入，启动结束后由1ZK延时旁路。是什么意思？

1ZC instruction after receiving startup, generally has a 3-5 second bypass R. our factory are generally set in 3.5 seconds. R just put at the start, start by 1ZK delay after the end of the bypass.