Error 3: Speed Irregularity / Underspeed
Cause:
• Loss of Speed: Drive responds with an actual of 0 Hz after initially sending a valid speed.
• Speed Acceleration is delayed: Drive is reporting a deviation of more than 6% from Target frequency
to Actual frequency for more than 45 seconds when changing speed. It should not take more than
35 seconds to go from 0 MPH to 15.6 MPH, so having this deviation exist for much longer than that
is a problem.
• Speed changes during workout: After successfully changing speed, the Drive reported actual speed
is <6% under the Target without being commanded by the console.
Service:
Error 3, like Error 95, can be displayed and/or stored if the power is interrupted while the belt is moving.
The drive controller immediately shuts off the motor, yet the main computer board still has enough power
to stay awake to see the drive report the motor stop. This is not a hard error condition, nor repeatable.
If they do repeat, check the cabling from the console to the motor controller.
Page 62 of 199
Cybex 525T Treadmill Part Number
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