Kinco FD5P AC series servo driver
册
Chapter 8 Alarm Investigation
Step 3: When the ambient temperature
exceeds 40°, take heat dissipation
measures or derate the power cabinet.
Step 4: The power circuit inside the driver is
damaged. Replace the driver.
The DC bus voltage exceeds the
overvoltage alarm point
Step 1: Check whether the power supply voltage is
within the driver input voltage range and whether
the power supply voltage is stable.
Step 2: When the feedback energy is too high in
high-speed braking situations, the brake resistance
is not connected and the control actions of multiple
axes are not synchronized, the common DC bus
scheme in section 3.2.4 can be considered.
Step 3: If the resistance value of the brake resistor
is too large, the energy leakage of the bus is not
timely. You can reduce the resistance value of the
brake resistor by referring to the recommended
range in Appendix 1.
The power voltage input is lower than the
low voltage protection alarm value.
Step 1: Check whether the power supply voltage
is within the driver input voltage range and whether
the power supply voltage is stable.
Step 2: Power on the power supply and then the
logic power supply, and ensure that the drive is
connected to the power supply before enabling the
power supply.
Note: FD415P/425P logic and power are not
separated. When the power is cut off in the
enabled state, the driver panel will blink 004.0.
When the capacitor is discharged, the panel LED
will be extinguished.
Instantaneous current exceeds the
overcurrent protection value.
Step 1: Check whether the motor configuration
parameters are consistent with the motor drawing.
Step 2: Check whether there is a short circuit
between the power line UVW, and try to replace
the power cable/motor/driver for comparison.
Step 3: Interference causes an overcurrent alarm.
For details, see 3.2.2 Setting EMC Conditions.
External brake resistance is overloaded
Step 1: Check whether the external brake
resistance value and brake resistance power are
set correctly on the panel or host computer. Step
2: The brake resistor power is insufficient, replace
the brake resistor with a higher power.
Internal brake resistance overtemperature
The power of the brake resistance inside the
driver is insufficient. Please disconnect the short
cable between DC+/RB1 and RB-end, and
connect the appropriate external brake resistance
between DC+/RB1 and RB-end.
Internal brake unit damaged, brake circuit
short circuit
After the driver is powered off, use a multimeter to
measure the DC- and RB-ends. If the driver works
properly, replace the driver.
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