sh030106u.pdf - 第672页

APPENDIX App. - 41 App. 11. 3 Speci al coati ng-spec ificati on produc t (IEC 6 0721-3- 3: 19 94 Class 3C2) App. 11. 3.1 Su mmary This sec tion ex plains serv o amplif iers w ith a s pecial c oatin g s pec ificat ion. It…

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APPENDIX
App. - 40
App. 11.1.3 Specifications
Dynamic brake which is built in 7 kW or smaller servo amplifiers is removed.
Take safety measures such as making another circuit for an emergency stop, alarm occurrence, and power
shut-off.
The following servo motors may function an electronic dynamic brake at an alarm occurrence.
Series Servo motor
HG-KR HG-KR053/HG-KR13/HG-KR23/HG-KR43
HG-MR HG-MR053/HG-MR13/HG-MR23/HG-MR43
HG-SR HG-SR51/HG-SR52
Setting the following parameter disables the electronic dynamic brake.
Servo amplifier Parameter Setting value
MR-J4-_B_-ED
MR-J4-_B_-RU
[Pr. PF06] _ _ _ 2
When [Pr. PA04] is "2 _ _ _" (default), the motor can be a state of forced stop deceleration at an alarm
occurrence. Setting "0 _ _ _" in [Pr. PA04] disables the forced stop deceleration function.
App. 11.2 Without regenerative resistor
App. 11.2.1 Summary
This section explains servo amplifiers without a regenerative resistor. The things not explained in this section
will be the same as MR-J4-_B_(-RJ).
App. 11.2.2 Model
The following describes what each block of a model name indicates. Not all combinations of the symbols are
available.
Series
Rated output
Symbol Rated output [kW]
11K
11
15K 15
22K 22
Power supply
Symbol Power supply
None
3-phase 200 V AC to 240 V AC
4
3-phase 380 V AC to 480 V AC
Special specifications
Symbol Special specifications
MR-J4-_B_-RJ without regenerative resistor RZ
PX
MR-J4-_B_ without regenerative resistor
MR KJBPX1144---
App. 11.2.3 Specifications
Indicates a servo amplifier of 11 kW to 22 kW that does not use a regenerative resistor as standard
accessory. When using any of these servo amplifiers, always use the MR-RB5R, MR-RB9F, MR-RB9T, MR-
RB5K-4, or MR-RB6K-4 regenerative option.
APPENDIX
App. - 41
App. 11.3 Special coating-specification product (IEC 60721-3-3:1994 Class 3C2)
App. 11.3.1 Summary
This section explains servo amplifiers with a special coating specification. Items not given in this section will
be the same as MR-J4-_B_(-RJ).
App. 11.3.2 Model
The following describes what each block of a model name indicates. Not all combinations of the symbols are
available.
Series
Rated output
Symbol Rated output [kW]
10 0.1
20 0.2
40 0.4
60 0.6
70 0.75
100 1
200
2
350 3.5
500 5
700 7
11K 11
15K 15
22K 22
Power supply
Symbol Power supply
None
3-phase 200 V AC to 240 V AC
4 3-phase 380 V AC to 480 V AC
Special specifications
Symbol Special specifications
KS MR-J4-_B_-RJ with a special coating specification (3C2)
EB MR-J4-_B_ with a special coating specification (3C2)
1 1-phase 100 V AC to 120 V AC
MR J BBE446---0
APPENDIX
App. - 42
App. 11.3.3 Specifications
(1) Special coating
Using the MR-J4 series in an atmosphere containing a corrosive gas may cause its corrosion with time,
resulting in a malfunction. For the printed circuit board of the servo amplifiers with a special coating
specification, a urethane coating agent is applied to some parts capable of being coated technically
(except LEDs, connectors, terminal blocks, etc.) to improve the resistance to corrosive gases. Use a
servo amplifier with a special coating specification specifically for applications susceptible to corrosive
gases, including tire manufacturing and water treatment. Although the special coating-specification
products have the improved resistance to corrosive gases, proper operations in environments mentioned
above are not guaranteed. Therefore, perform periodic inspections for any abnormality.
(2) Standard for corrosive gases
In IEC 60721-3-3, corrosive gases refer to sea salt, sulfur dioxide, hydrogen sulfide, chlorine, hydrogen
chloride, hydrogen fluoride, ammonia, ozone, and nitrogen oxides shown in the environmental parameter
column of the table below.
The table also shows the corrosive gas concentrations defined in IEC 60721-3-3:1994 Class 3C2.
Environmental parameter Unit
3C2
Mean value Maximum value
a) Sea salt None Salt mist
b) Sulfur dioxide cm
3
/m
3
0.11 0.37
c) Hydrogen sulfide cm
3
/m
3
0.071 0.36
d) Chlorine cm
3
/m
3
0.034 0.1
e) Hydrogen chloride cm
3
/m
3
0.066 0.33
f) Hydrogen fluoride cm
3
/m
3
0.012 0.036
g) Ammonia cm
3
/m
3
1.4 4.2
h) Ozone cm
3
/m
3
0.025 0.05
i) Nitrogen oxides cm
3
/m
3
0.26 0.52
The special coating-specification products have the improved corrosion resistance in environments with
corrosive gas concentrations conforming to IEC 60721-3-3:1994 Class 3C2. We tested typical models
and confirmed that their corrosive gas resistance was improved, compared with the standard models.