32
If the default appears during the operation:
•
Check the motor temperature and look for the reason of this overheating (mechanical shaft overload,
duty cycle too high, ...)
7.2.4
Undervoltage default
If the default appears when starting the amplifier: Check that the power supply is on.
7.2.5
“oC Amplifier” default
Check that correct fan is installed with regard to the rated current required (see chapter 2.1.0).
7.2.6
“Power stage” default
If the default appears when starting the amplifier:
•
Check the DC bus voltage and the terminal voltage of the power transformer secondary (DC bus <
370VDC).
If the default appears during operation:
•
Check the braking system during the deceleration phases,
•
Check the sizing of the braking resistor with regard to the deceleration phases.
•
Check that the duty cycle corresponds to the current table (see chapter 2.1.0).
•
Check for short-circuit in the motor wiring and at the motor terminals.
7.2.7
“Resolver” default
•
Check the resolver connection on the amplifier connector X1.
•
Check the presence of the P-RES components.
•
Check that the resolver type is correct with regard to the P-RES components;
•
Check the connections between the resolver and the amplifier.
7.2.8
“R.D.C” default
If the default appears when starting the amplifier:
•
Check that the values of the P-RES components and the resolver transformation ratio are correct.
If the default appears during operation:
•
Check that the motor speed does not exceed the speed limits defined below:
•
If
Max. speed
<
900 rpm, then the speed is limited to 900 rpm.
•
If 900 rpm
<
Max. speed
<
3600 rpm, then the speed is limited to 3600 rpm.
•
If 3600 rpm
<
Max. speed
<
14000 rpm, then the speed is limited to 14000 rpm.
•
Be careful in torque mode operation (CI command activated on X4) where the motor speed is
determined by the load.
