DIGIVEX Little Drive Servoamplifier
81
PVD 3530 GB 01/2005
7.3 Defaults description
DEFAULT
TYPE
ACTION
2
Resolver fault
Detection of S1,S2, S3 and S4 signal absence.
Loss of resolver excitation: Veff rated value = 7V, Frequency = 8012 Hz on R1, R2/R3.
Loss of sin (S2 S4) or cos (S1 S3) signals or too low resolver transformation ration.
Bad contact (check connectors).
3
Excessive
ambient
or
dissipater
temperature
Ambient: this is measured between the electronic boards and operations are stopped when
the temperature exceeds 60°C
Dissipater:
If the temperature is less than 85°C: nothing happens
85°C < T< 109°C: there is a progressive reduction of current authorized by the motion
controller.
110°C < T: operations stop.
Can be linked to large braking cycles.
Check:
•
Electrical control cabinet ventilation
•
Good circulation around the motion controller
4
Excessive
speed
Rotation speed measured at more than 15% above the maximum application speed
Check:
•
Motion controller customization inappropriate to the motor and/or the application
•
Speed instruction more than 15% above the maximum authorized value.
•
Driving load
6
Maximum motion
controller current
reached
The measured current exceeds the motion controller’s pulse current by 30%.
Check:
•
Long length of cable
•
Use of shielded cable with large capacity per unit length
•
The motor programmed in the motion controller does not correspond to the
connected motor
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