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Main
Sub
Error
code
10
Cause
Diagnosis
Motor rotor blocked
Look for mechanical blockages
Motor rotor blocking
time threshold value
Verify value of Pr6.57
too low
Main
Sub
Error
code
12
0
Cause
Regenerative energy
exceeded capacity of
regenerative resistor
Power supply voltage
too high
Unstable power supply
voltage
Regenerative energy
discharge circuit
damaged
Main
Sub
Error
code
12
1
Cause
Holding
brake
circuit
damaged
Main
Sub
Error
code
12
2
Cause
External regenerative
resistor value is less
than the minimum value
allowed by the drive
Main
Sub
Error
code
15
0
Cause
Encoder cable
Display:
"Er
102"
2
Content: Motor rotor blocked
Display:
"Er
120"
Content: Regenerative resistor overvoltage
Diagnosis
1. Verify if velocity is too
high
2. Verify if load is too large
1. Verify if power supply
voltage is within the rated
range.
2. Interval regenerative
resistor value is too low
Verify if power supply
voltage is stable
/
Display:
"Er
121"
Content: Holding brake error
Diagnosis
Regenerative resistor
disconnected
Holding brake IGBT
damaged
Display:
"Er
122"
Content: Regenerative resistor value too low
Diagnosis
/
Display:
"Er
150"
Content: Encoder disconnected
Diagnosis
Verify encoder cable connection
User Manual of iSV2-RS Integrated Servo
Solution
Check the machinery
Adjust value of Pr6.57
Solution
1. Decrease motor rotational velocity;
2. Decrease load inertia;
3. Add an external regenerative resistor;
1. Decrease power supply voltage
2. Increase regeneration resistance
value(add external regenerative resistor)
Add a surge suppressor to main power
supply.
1. Add an external regenerative resistor;
2. Replace driver
Solution
Replace regenerative resistor
Replace driver
Solution
Replace the regenerative resistor with the
right resistance value which meets the
specification of the driver
Solution
Make sure encoder cable properly
201
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