129
No
Protection
message
What are
protected
Description of protection operation
74
Failed fan
(slave unit 3)
It starts when the main cooling fan in the slave unit 3 has an abnormality. (The
operation is not stopped for protection.)
75
Control power
supply
abnormality
(slave unit 3)
It starts when voltage of the control power supply in the slave unit 3 drops.
76
MC response
abnormality
(slave unit 3)
It starts when the MC in the slave unit 3 does not turn on.
77
Converter
overheat
(slave unit 3)
It starts when the cooling heat sink temperature of the converter in the slave unit 3
becomes more than or equal to a specified value.
78
VFDB1
(dynamic braking
unit 1)
abnormality
It starts when the VFDB1 (dynamic braking unit 1) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
79
VFDB2
(dynamic braking
unit 2)
abnormality
It starts when the VFDB2 (dynamic braking unit 2) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
80
VFDB3
(dynamic braking
unit 3)
abnormality
It starts when the VFDB3 (dynamic braking unit 3) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
81
VFDB4
(dynamic braking
unit 4)
abnormality
It starts when the VFDB4 (dynamic braking unit 4) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
82
VFDB5
(dynamic braking
unit 5)
abnormality
It starts when the VFDB5 (dynamic braking unit 5) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
83
VFDB6
(dynamic braking
unit 6)
abnormality
It starts when the VFDB6 (dynamic braking unit 6) is in the protection state or has
a communication abnormality.
*1
(The operation is not stopped for protection.)
*1: You can set whether the operation should be stopped for protection or not. For the details, refer to
"
6.11 Area J
"
in
Chapter 6 and
"
7.11 Area J" in Chapter 7.