Investigation sequence
Identify brake arrangement
Determine motor-mounted versus external brake, supply voltage, relay/output route and any feedback/interlock.
Capture parameters
Record release delay, close delay, thresholds and command source before adjustment.
Check electrical output
Verify the brake command relay/output and coil supply under a safe test condition.
Check mechanical brake
Inspect wear, sticking, air gap and load-holding performance using approved site procedure.
Stage test
Only after electrical and mechanical evidence is credible should controlled motion testing be performed.
Stop conditions
- Load cannot be secured
- Brake mechanical condition unknown
- Parameter values not recorded
- Brake coil or relay overheats
Linked records
The MASTERDRIVES brake-control function depends on release/close delay times, thresholds, output wiring and mechanical brake condition. It must be treated as a functional safety-adjacent motion issue, not a simple relay output problem.
Maps drive brake-control logic to relay output, brake coil supply, release/close delays and mechanical brake condition for hoist and vertical-axis applications.