5. Peripheral Devices
5-1 Selection of wire ................................................................................................................................. 5-2
5-1-1 Example of wires by unit ............................................................................................................. 5-2
5-2 Selection the AC reactor, contactor and no-fuse breaker.................................................................. 5-5
5-2-1 Standard selection....................................................................................................................... 5-5
5-2-2 Selection when a contactor is shared ......................................................................................... 5-6
5-3 Earth leakage breaker........................................................................................................................ 5-7
5-4 Branch-circuit protection .................................................................................................................... 5-8
5-4-1 Circuit protector ........................................................................................................................... 5-8
5-4-2 Fuse protection............................................................................................................................ 5-8
5-5 Noise filter .......................................................................................................................................... 5-9
5-6 Surge absorber ................................................................................................................................ 5-10
5-7 Speedometer and load meter........................................................................................................... 5-11
5-8 Cable for peripheral control.............................................................................................................. 5-12
5-8-1 Cable for external emergency stop ........................................................................................... 5-12
5-8-2 Cable for servomotor magnetic brake ....................................................................................... 5-13
5 - 1
5. Peripheral Devices
5-1 Selection of wire
5-1-1 Example of wires by unit
Selected wires must be able to tolerate rated current of the unit’s terminal to which the wire is connected.
How to calculate tolerable current of an insulated wire or cable is shown in “Tolerable current of electric cable” (1) of Japanese Cable Makers’ Association Standard (JCS)-168-E (1995), its electric equipment technical standards or JEAC regulates tolerable current, etc. wire.
When exporting wires, select them according to the related standards of the country or area to export.
In the UL standards, certification conditions are to use wires of 60
o
C and 75
o
C product. (UL508C)
Wire’s tolerable current is different depending on conditions such as its material, structure, ambient temperature, etc. Check the tolerable current described in the specification of the wire to use.
Example of wire selections according to each standard is as follows.
(1) 600V vinyl insulated wire (IV wire) 60 o
C product
(Example according to IEC/EN60204-1, UL508C)
Unit type
Power supply unit
Spindle drive unit
Servo drive unit
(1-axis)
Servo drive unit
(2-axis)
Terminal name
MDS-C1-CV-37
MDS-C1-CV-55
MDS-C1-CV-75
MDS-C1-CV-110
MDS-C1-CV-150
MDS-C1-CV-185
MDS-C1-CV-220
MDS-C1-CV-260
MDS-C1-CV-300
MDS-C1-CV-370
MDS-C1-SP □ -04
MDS-C1-SP □ -075
MDS-C1-SP □ -15
MDS-C1-SP □ -22
MDS-C1-SP □ -37
MDS-C1-SP □ -55
MDS-C1-SP □ -75
MDS-C1-SP □ -110
MDS-C1-SP □ -150(S)
MDS-C1-SP □ -185
MDS-C1-SP □ -220
MDS-C1-SP □ -260
MDS-C1-SP □ -300
MDS-C1-V1-01
MDS-C1-V1-03
MDS-C1-V1-05
MDS-C1-V1-10
MDS-C1-V1-20
MDS-C1-V1-35
MDS-C1-V1-45(S)
MDS-C1-V1-70(S)
MDS-C1-V1-90
MDS-C1-V1-110
MDS-C1-V1-150
MDS-C1-V2□□□□
TE1 TE2 TE3
(L1, L2, L3, ) (L+, L-) (L11, L21, L12, L22, MC1) mm
2
AWG mm
2
AWG mm
2
AWG
3.5 12
3.5 12
5.5 10
14 6
22 4
30 3
38 2
50 -
60 -
- -
Same as TE1
2 14
2 14
3.5 12
3.5 12
3.5 12
3.5 12 Match with TE2 of
1.25 to 2 16 to 14
1.25 to 2 16 to 14
8 8
14 6
22 4
30 3 unit
38 2
60 -
1.25 16
1.25 16
2 14
2 14
3.5 12 Match with TE2 of
1.25 to 2 16 to 14 unit 5.5 10
8 8
8 8
14 6
30 3
Select wire size for each axes based on wire size of 1-axis drive type.
Match with TE2 of selected power supply unit
1.25 to 2 16 to 14
5 - 2
5. Peripheral Devices
(2) 600V double (heat proof) vinyl insulated wire (HIV wire) 75
o
C product
(Example according to IEC/EN60204-1, UL508C)
Unit type
Power supply unit
Spindle drive unit
Servo drive unit
(1-axis)
Servo drive unit
(2-axis)
Terminal name
MDS-C1-CV-37
MDS-C1-CV-55
MDS-C1-CV-75
MDS-C1-CV-110
MDS-C1-CV-150
MDS-C1-CV-185
MDS-C1-CV-220
MDS-C1-CV-260
MDS-C1-CV-300
MDS-C1-CV-370
MDS-C1-SP □ -04
MDS-C1-SP □ -075
MDS-C1-SP □ -15
MDS-C1-SP □ -22
MDS-C1-SP □ -37
MDS-C1-SP □ -55
MDS-C1-SP □ -75
MDS-C1-SP □ -110
MDS-C1-SP □ -150(S)
MDS-C1-SP □ -185
MDS-C1-SP □ -220
MDS-C1-SP □ -260
MDS-C1-SP □ -300
MDS-C1-V1-01
MDS-C1-V1-03
MDS-C1-V1-05
MDS-C1-V1-10
MDS-C1-V1-20
MDS-C1-V1-35
MDS-C1-V1-45(S)
MDS-C1-V1-70(S)
MDS-C1-V1-90
MDS-C1-V1-110
MDS-C1-V1-150
MDS-C1-V2□□□□
TE1 TE2 TE3
(L1, L2, L3, ) mm
2
AWG mm
2
(L+, L-) (L11, L21, L12, L22, MC1)
AWG mm
2
AWG
2 14
3.5 12
5.5 10
14 6
14 6
22 4
30 3
38 2
38 2
50 -
Same as TE1
2 14
2 14
2 14
2 14
2 14
1.25 to 2 16 to 14
5.5 10
14 6
14 6
22 4
30 3
38 2
1.25 16
1.25 16
2 14
2 14 unit
3.5 12
5.5 10
8 8
14 6
22 4
Select wire size for each axes based on wire size of 1-axis drive type. unit
Match with TE2 of selected power supply unit
1.25 to 2
1.25 to 2
1.25 to 2
16 to 14
16 to 14
16 to 14
5 - 3
5. Peripheral Devices
(3) 600V bridge polyethylene insulated wire (IC) 105 o
C product
(Example according to JEAC8001)
Unit type
Power supply unit
Spindle drive unit
Servo drive unit
(1-axis)
Servo drive unit
(2-axis)
Terminal name
MDS-C1-CV-37
MDS-C1-CV-55
MDS-C1-CV-75
MDS-C1-CV-110
MDS-C1-CV-150
MDS-C1-CV-185
MDS-C1-CV-220
MDS-C1-CV-260
MDS-C1-CV-300
MDS-C1-CV-370
MDS-C1-SP □ -04
MDS-C1-SP □ -075
MDS-C1-SP □ -15
MDS-C1-SP □ -22
MDS-C1-SP □ -37
MDS-C1-SP □ -55
MDS-C1-SP □ -75
MDS-C1-SP □ -110
MDS-C1-SP □ -150(S)
MDS-C1-SP □ -185
MDS-C1-SP □ -220
MDS-C1-SP □ -260
MDS-C1-SP □ -300
MDS-C1-V1-01
MDS-C1-V1-03
MDS-C1-V1-05
MDS-C1-V1-10
MDS-C1-V1-20
MDS-C1-V1-35
MDS-C1-V1-45(S)
MDS-C1-V1-70(S)
MDS-C1-V1-90
MDS-C1-V1-110
MDS-C1-V1-150
MDS-C1-V2□□□□
TE1 TE2 TE3
(L1, L2, L3, ) mm
2
AWG mm
(L+, L-) (L11, L21, L12, L22, MC1)
2
AWG mm
2
AWG
2 14 2 14
3.5 12 3.5 12
5.5 10 14 6
14 6 22 4
14 6 22 4
22 4 30 3
38 2 38 2
38 2 50 -
2 14
2 14
2 14
2 14
2 14
5.5 10
14 6
14 6
22 4
30 3
38 2
1.25 16
1.25 16
2 14
2 14 unit
3.5 12
5.5 10
8 8
14 6
22 4
Select wire size for each axes based on wire size of 1-axis drive type. unit
Match with TE2 of selected power supply unit
1.25 to 2
1.25 to 2
1.25 to 2
16 to 14
16 to 14
16 to 14
16 to 14
CAUTION
1. Selection conditions follow IEC/EN60204-1, UL508C, JEAC8001.
•
Ambient temperature is maximum 40°C.
•
Cable installed on walls without ducts or conduits.
To use the wire under conditions other than above, check the standards you are supposed to follow.
2. The maximum wiring length to the motor is 30m.
If the wiring distance between the drive unit and motor is 20m or longer, use a thick wire so that the cable voltage drop is 2% or less.
3. Always wire the grounding wire.
5 - 4
5. Peripheral Devices
5-2 Selection the AC reactor, contactor and no-fuse breaker
5-2-1 Standard selection
Install an AC reactor, contactor and no-fuse breaker (NFB) per one power supply unit. Refer to the table below and select them according to each power supply unit capacity.
Selection of AC reactor, contactor and no-fuse breaker (NFB)
Power supply unit capacity
AC reactor
Recommended contactor
(Special order part)
Recommended main circuit NFB
(Special order part)
3.7 to 7.5kW
NF50CS3P-40A0
5
11kW 15 to 18.5kW 22 to 30kW 37kW
B-AL-7.5K B-AL-11K B-AL-18.5K B-AL-30K B-AL-37K
S-N25 200V S-N35 200V
NF50CS3P-50A05
S-N50 200V S-N80 200V S-N150 200V
NF100CS3P-100A05 NF225CS3P-150A05 NF225CS3P-175A05
Recommended motor fan NFB
(Special order part)
An NFB or CP (circuit protector) can be used as the motor fan breaker.
Select the NFB or CP using a value approximately double the motor fan rated current value shown below.
Contact the NFB or CP manufacturer for details on the recommended wire size, etc.
Spindle motor frame size
Motor fan rated current
71 90
0.1A 0.2A
112
0.2A
132
0.2A
160
0.6A
180
0.6A
Servomotor capacity
Motor fan rated current
HA-LF11K2 HA-LF15K2
0.3A 0.3A
* A rush current that is approximately double the above rated current flows when the motor starts.
(Note 1) In the above table, a special order part refers to a part that cannot be ordered from Mitsubishi, and which must be prepared by the user.
(Note 2) To comply with the EC Directives, use contactors and NFB that comply with the EN/IEC
Standards.
CAUTION
If a breaker is shared by several power supply units, the breaker may not activate when a short-circuit fault occurs in a small capacity unit. This is dangerous, so never share the breakers.
5 - 5
200VAC
5. Peripheral Devices
5-2-2 Selection when a contactor is shared
If two or more power supply units share one contactor, select the contactor as explained below. Note, however, that one AC reactor and no-fuse breaker are required per one power supply unit.
(1) Selection
Calculate the total input current of the power supply units that share one contactor by referring to the following table. Select the contactor whose capacity is equal to or less than the rated conductivity current.
Power supply unit input current
Power supply unit CV-37 CV-55 CV-75 CV-110 CV-150 CV-185 CV-220 CV-260 CV-300 CV-370
Input current
(2) Connection diagram when a contactor is shared
Install one AC reactor and no-fuse breaker per each power supply unit.
NC control section
C1-V1 C1-V2
C1-CV (No. 2) C1-SP C1-CV (No. 1) A-BT
(4)
(5)
MC1
L1, L2, L3
L+, L–
L11, L21
(6)
MC1
L1, L2, L3
L+, L–
L11, L21
For control power
200VAC
MC
AC reactor
Contactor
5 - 6
NFB1
AC reactor
5. Peripheral Devices
5-3 Earth leakage breaker
When installing an earth leakage breaker, select the breaker on the following basis to prevent the breaker from malfunctioning by the higher frequency earth leakage current generated in the servo or spindle drive unit.
(1) Selection
Obtaining the earth leakage current for all drive units referring to the following table, select an earth leakage breaker within the “rated non-operation sensitivity current”.
Usually use an earth leakage breaker for inverter products that function at a leakage current within the commercial frequency range (50 to 60Hz).
If a product sensitive to higher frequencies is used, the breaker could malfunction at a level less than the maximum earth leakage current value.
Earth leakage current for each unit
Unit Earth leakage current Maximum earth leakage current
MDS-C1-SP-04 to 300
MDS-C1-V1-01 to 150
6mA 15mA
1mA 2mA
MDS-C1-V2-0101 to 9090S 1mA 4mA (for two axes)
(Note1) Maximum earth leakage current: Value that considers wiring length and grounding, etc.
(Commercial frequency 50/60Hz)
(Note2) The earth leakage current in the power supply unit side is included in the drive unit side.
(2) Measurement of earth leakage current
When actually measuring the earth leakage current, use a product that is not easily affected by the higher frequency earth leakage current. The measurement range should be 50 to 60Hz.
POINT
1. The earth leakage current tends to increase as the motor capacity increases.
2. A higher frequency earth leakage current will always be generated because the inverter circuit in the drive unit switches the transistor at high speed. Always ground to reduce the higher frequency earth leakage current as much as possible.
3. An earth leakage current containing higher frequency may reach approx. several hundreds of mA. According to IEC479-2, this level is not hazardous to the human body.
5 - 7
5. Peripheral Devices
5-4 Branch-circuit protection
5-4-1 Circuit protector
This breaker is used to switch the control power and to provide overload and short-circuit protection.
When connecting a circuit protector or breaker to the power input (TE3 terminals L11 and L21) for the control circuit, use a product that does not trip (incorrectly activate) by a rush current when the power is turned ON. A circuit protector with inertial delay and an operation delayed type breaker are available to prevent unnecessary tripping. Select the product to be used according to the machine specifications.
The rush current and rush conductivity time differ according to the power impedance and power ON timing, so select a product that does not trip even under the conditions listed in the following table.
Rush current: Ip=35
36.8%
I [A]
Time constant: T=6
Rush conductivity time:
Time to reach 36.8% of rush current; equivalent to breaker operation characteristics operation time. t [ms]
POINT
When collectively protecting the control circuit power for multiple units, select a circuit protector or breaker that satisfies the total sum of the rush current Ip.
The largest value is used for the rush conductivity time T.
5-4-2 Fuse protection
The fuse of branch-circuit protection must use UL class CC, J or T. In the selection, please consider rush current and rush conductive time.
Selection of branch-circuit protection fuse
Connected total of unit
Fuse (Class CC)
Rated [V] Current [A]
Wire Size
AWG
1 – 4
5 – 8
600
20
35
16 to 14
CAUTION
For continued protection against risk of fire, replace only with same type 600
V, 20 or 35 A (UL CLASS CC) fuse.
5 - 8
5. Peripheral Devices
5-5 Noise filter
(1) Selection
Use an EMC noise filter if the noise conducted to the power line must be reduced. Select an EMC noise filter taking the power supply unit's input rated voltage and input rated current into consideration.
(2) Noise filter mounting position
Install the noise filter to the power supply unit’s power input as the diagram below indicates.
Power distribution panel
Power supply unit
Breaker
AC reactor Contactor
Power supply
Noise filter
R
S
T
MDS-C1-CV
(Note) The noise filter must be prepared by the user.
Recommended devices: Okaya Electric Industries 3SUP-HL-ER-6B Series
Soshin Electric HF3000C-TMA Series
Contact: Okaya Electric Industries Co., Ltd. Telephone: 03-3424-8120
(+81-3-3424-8120) http://www.okayaelec.co.jp
Soshin Electric Co., Ltd. Telephone: 03-3775-9112
(+81-3-3775-9112) http://www.soshin.co.jp
(Note) The above devices may be changed at the manufacturer's discretion.
Contact each manufacturer for more information.
5 - 9
5. Peripheral Devices
5-6 Surge absorber
When controlling a magnetic brake of a servomotor in DC OFF circuit, a surge absorber must be installed to protect the relay contacts and brakes. Commonly a varistor is used.
(1) Selection of varistor
When a varistor is installed in parallel with the coil, the surge voltage can be adsorbed as heat to protect a circuit. Commonly a 120V product is applied. When the brake operation time is delayed, use a 220V product. Always confirm the operation with an actual machine.
(2) Specifications
Select a varistor with the following or equivalent specifications. To prevent short-circuiting, attach a flame resistant insulation tube, etc., onto the leads as shown in the following outline dimension drawing.
Varistor specifications
Varistor type
Varistor voltage rating
(range)
(V)
Tolerable circuit voltage
Rating
Surge current withstand level
Energy withstand level
(A)
AC (V) DC (V) 1 time 2 times 10/1000us
(J)
Power
Max. limit voltage
Electrostatic
2ms (W) (V) capacity
(reference value)
(pF)
ERZV10D121
TNR10V121K
ERZV10D221
TNR10V221K
POINT
120
(108 to 132)
220
(198 to 242)
75 100 3500 2500 20 14.5 0.4 200 1400
140 180 3500 2500 39 27.5 0.4 360
(Note 1) Selection condition: When ON/OFF frequency is 10 times/min or less, and exciting current is 2A or less
(Note 2) ERZV10D121 and ERZV10D221 are manufactured by Matsushita Electric Industrial Co., Ltd.
TNR10V121K and TNR10V221K are manufactured by MARCON Electronics Co., Ltd.
Contact: Matsushita Electronic Components Co., Ltd : http://www.panasonic.co.jp/ maco/
MARCON Electronics Co., Ltd. Telephone : (Kanto)03-3471-7041 (+81-3-3471-7041)
(Kinki) 06-6364-2381 (+81-3-6364-2381)
(Chubu) 052-581-2595 (+81-52-581-2595)
(3) Outline dimension drawing
• ERZV10D121, ERZV10D221
20.0
11.5
[Unit: mm]
Insulation tube
410
Normally use a product with 120V varistor voltage. If there is no allowance for the brake operation time, use the 220V product. A varistor whose voltage exceeds 220V cannot be used, as such varistor will exceed the specifications of the relay in the unit.
5 - 10
5. Peripheral Devices
5-7 Speedometer and load meter
Speedometer and load meter can be output from the D/A output which is for measuring control data.
When speedometer is output, +10V DC is output at the motor’s maximum speed regardless of the motor’s rotation direction. The following specifications are recommended for the display.
10 (a) Type YM-8G type DC voltage type (Mitsubishi)
(b) Rating 10VDC full scale
(c) Internal impedance approx. 10k
Ω
0
Maximum rotation speed
Motor rotation speed (r/min)
Speedometer output specification
(2) Load meter output
The load meter indicates the percentage of the load in respect to the motor's rated output. The relation of the motor output capacity [kW] and load meter display [%] is as follows.
0
Overload (for one minute) zone
50%ED (15-minute)
(30-minute) zone
Continuous rating zone
1500 6000
Motor rotation speed (r/min)
Load meter output specification
8000
Load meter 120%
Load meter 100%
Load meter X 100%
The following specifications are recommended for the display.
(a) Type YM-8G type DC voltage type (Mitsubishi)
(b) Rating 10VDC full scale
(c) Internal impedance approx. 10k
Ω
(d) Scale indicating alarm at 100% or above (see right figure)
0
20
40
60
80
%
Load meter display
100
Red zone
120
5 - 11
5-8 Cable for peripheral control
5. Peripheral Devices
5-8-1 Cable for external emergency stop
Prepare the cable below for external emergency stop function (dual emergency stop function). The cable for external emergency stop must be prepared by the user.
External emergency stop connector
Bottom view of MDS-C1-CV
No. Item
101
102
Connector
Contact
101 102
Type
2-178288-3
1-175218-2
Manufacturer
Tyco Electronics AMP
Tyco Electronics AMP
Wire size:0.5 to 1.25SQ
Drive unit side
3
1
CN23
+
-
5 - 12
5. Peripheral Devices
5-8-2 Cable for servomotor magnetic brake
Prepare the cable according to the servo system specifications.
(1) Magnetic brake control for 9kW or less servomotor
Use CN20 connector output to control a motor magnetic brake. Refer to the section "3-1-5 Magnetic brake" for the connection details.
Common
EMG-2
1
2
3
Motor brake
CNU20S(AWG14)
Drive unit side
Connection of CN20 connector
(2) Magnetic brake and dynamic brake control for 11kW or 15kW servomotor
Use a dynamic brake output as well as a motor magnetic brake output for using a dynamic brake unit (MDS-B-DBU-150). Refer to the sections "3-1-5 Magnetic brake" and "4-1-2 Dynamic brake unit" for the connection details.
EMG-1
EMG-2
1
2
3
CNU20S(AWG14)
Drive unit side
Common
Dynamic brake
Motor brake
Connection of CN20 connector when a dynamic brake unit is used
5 - 13
