Unsuccessful AMA
1. The frequency converter enters into alarm mode. A description of the alarm can be found in the
Warnings and Alarms
chapter.
2. "Report Value” in the [Alarm Log] shows the last measuring sequence carried out by the AMA, before the frequency converter entered alarm
mode. This number along with the description of the alarm will assist you in troubleshooting. If you contact Danfoss for service, make sure to
mention number and alarm description.
NB!
Unsuccessful AMA is often caused by incorrectly registered motor name plate data or a too big difference between the motor power
size and the frequency converter power size.
Step 4. Set speed limit and ramp time
Par. 3-02
Minimum Reference
Par. 3-03
Maximum Reference
Table 4.14: Set up the desired limits for speed and ramp time.
Par. 4-11
Motor Speed Low Limit [RPM]
or par. 4-12
Motor Speed
Low Limit [Hz]
Par. 4-13
Motor Speed High Limit [RPM]
or par. 4-14
Motor Speed
High Limit [Hz]
Par. 3-41
Ramp 1 Ramp up Time
Par. 3-42
Ramp 1 Ramp Down Time
4 How to Install
VLT HVAC Low Harmonic Drive Operating In-
structions
66 MG.16.A1.02 - VLT
®
is a registered Danfoss trademark
4
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