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12-20
Diagnostic Message Descriptions
F860 Overcurrent: short in power stage
F870 +24Volt DC error
Example:
Ucos = -6.5V
Usin = 6.5V
=
−
Po
int
erlength
(
6
Note:
The error cannot be cleared in the (manual/automatic)
operating mode. Switch to parameter mode before clearing
the error.
Causes:
1.
Defective encoder cable
2.
Disruption of feedback signal transmission
3.
Defective encoder
Remedy:
1.
Check the measurement system cable.
2.
Keep the cable well away from motor power cables. Shielding
must be placed on the drive controller.
3.
Check the measurement system and replace if necessary.
The current in the power transistor bridge is more than twice as high as
the equipment's peak current. The drive is immediately switched to a
torque-free state. An optional holding brake, if present, engages
immediately.
Cause:
1.
Short circuit in motor cable
2.
Defective power section of the drive controller
3.
The current-loop parameters were set incorrectly.
Remedy:
For 1. Check motor cable for short circuit.
For 2. Replace the drive controller.
For 3. The current-loop parameters must not deviate from the initial
values received from the encoder.
The drive controller requires a 24-V control voltage. The drive is
immediately switched to a torque-free state when the maximum
permissible tolerance of +-20% is exceeded. An optional holding brake, if
present, engages immediately.
Cause:
1.
Defective cable for the control voltages.
2.
24-V power supply overload.
3.
Defective power supply unit.
4.
Short-circuit in the emergency stop circuit.
ECODRIVE03-FL*-04VRS
+
=
5 ,
V
)²
6 (
5 ,
V
)²
9
2 ,
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
V
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