Two-Hand Discrepancy Error - Between Pairs

What does FB TWOHAND Bit 2 mean?

A discrepancy has been detected between the actuation times of input pair 1 and input pair 2 for the FB TWOHAND. This means the operator is not actuating both hands simultaneously within the allowed time window, or there's an issue with the timing of the two-hand control device itself. This fault ensures true simultaneous actuation for safety and stops the machine.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Review the discrepancy time parameter *between* input pairs in the FB TWOHAND configuration; adjust if the application legitimately allows for a slightly larger window.

2. 4

   Verify the response times of both two-hand input devices and their associated wiring for any delays.