Fuji Electric RHC7.5-4C PWM Converter Instruction Manual
- June 17, 2024
- Fuji Electric
Table of Contents
Supplementary Document to
Instruction Manual
RHC7.5-4C PWM Converter
High power factor PWM converter with power regenerative function
TYPE: RHC7.5-4C to RHC55-4C
A part of compliance with European standard is added.
Read this manual in addition to main instruction manual
CAUTION
- Read all operating instructions manual before installing, connecting (wiring), operating, servicing, or inspecting the converter.
- Ensure that this instruction manual is made available to the final user of the converter.
- Store this manual in a safe, convenient location.
- The product is subject to change without prior notice.
Instructions
Thank you for purchasing our RHC-C series Converter. This manual shows how to make RHC-C conform to the EN Standards. If you want to use the RHC-C series converter as a part of EN standards certified product, refer to this manual. As incorrect use of this product may result in personal injury and/or property damage, read all operating instructions before using it. As this manual does not cover the use of function codes and option cards, etc., refer to RHC-C Installation Manual.
Safety Instructions
Read this manual carefully before installing, connecting (wiring), operating,
servicing, or inspecting the Converter.
Familiarize yourself with all safety features before using the Converter.
In this manual, safety messages are classified as follows:
WARNING Improper operation may result in serious personal injury or death.
CAUTION Improper operation may result in slight to medium personal injury
or property damage.
Situations more serious than those covered by CAUTION will depend on
prevailing circumstances.
Follow always the instructions.
Compliance with European standards
The CE marking on Fuji products indicates that they comply with the essential
requirements of the Electromagnetic Compatibility (EMC) Directive 2004/108/EC
and Low Voltage Directive 2006/95/EC which are issued by the Council of the
European Communities.
The products comply with the following standards
| Type: RHC-C series (1)
---|---
EMC Directive standards (2)| EN61800-3 : 2004
Immunity : Second environment (Industrial) Emission : Category C2 (*3)
Low Voltage Directive standards| EN 50178: 1997
1) Only RHC-C models shown in table 2.1, 2.2 and 3.1 comply with the EN standards.
2) If connected to an external EMC filter dedicated to Fuji converters, RHC-C converters that bear a CE marking become compliant with these EMC directive.
*3) 45kW and 55kW converters without ACL: Category C3 conducted emission, C2 radiated emission
Compliance with Low Voltage Directive
2-1. Overview
Converters are subject to the Low Voltage Directive in Europe. Fuji
voluntarily declares the compliance with the Low Voltage Directive.
2-2 Notes
See the notes below when you use converters as products compliant with the Low
Voltage Directive in Europe.
CAUTION
- The contact capacity for the alarm relay output (30A, B, C) and the relay signal output (Y5A, Y5C) is DC 48V, 0.5A.
- Connect your converter to the ground securely.
- Attach ring terminals to the wires when you connect them to the converter main circuit terminals and converter ground terminals.
- Use an independent wiring for the converter ground terminal . Do not connect two or more wires.
- When you use an earth leakage breaker (RCD), you can use only the Type B for protection for the power supply.
- Use a molded case circuit breaker (MCCB) and a magnetic contactor (MC) compliant with the EN or IEC standard.
- For a power supply system where the neutral point is not grounded (IT-Net), the control terminals are provided as basic insulation in respect to the main circuit. When a person may touch them directly, an external insulation circuit for double insulation should be added.
- Use your converter under a condition corresponding to the overvoltage category III and pollution degree 2 or better, as prescribed in IEC664 standard. If the converter will be used in an environment with pollution degree 3 or worse, install it inside an enclosure (electrical panel) of IP54 or higher, preventing water, oil, carbon and dust from entering, and thus meeting the pollution degree 2 or better.
- Use wires with the diameter and the type prescribed in the Appendix C of EN 60204 for the input/output wiring for your converter. Refer to the table 2.1.
- When you install the converter with the heatsink external to the control panel, a protection cover should be installed, thus preventing the capacitor located on the heatsink from being touched.
- When you install the boosting reactor, the filter reactor, filter capacitor and the filter resistor, follow the description below to prevent an electric shock due to touching the terminals and electrically active parts. 1) Install them in an enclosure or wall of IP4X or higher when a person may have an easy access to them. 2) Install them in an enclosure or wall of IP2X or higher when a person does not have an easy access to them.
- To prevent the risk of hazardous accidents that could be caused by damage of the converter, install the specified fuses in the supply side (primary side) according to the table 2.2.
CAUTION
Table 2.1 Applicable main circuit and motor wire sizes for compliance to Low
Voltage Directive
Voltage| Output capacity KW|
Converter type: RHC□
| Mode| MCCB
Rated current [A]
| Tightening torque [N.m]| Recommended wire size [mm2]
---|---|---|---|---|---|---
L1/R,L2/S,L3/T P(+),N(-)|
G
| R0,T0| R1,S1,T1 R2,T2,73a,73c| Controller| L1/R,L2/S, L3/T ( G)| P(+),N(-)|
R0,T0| R1,S1,T1 R2,T2,73a,73c| Controller
400V series| 8.8| 7.5-4C| CT| 20| 5.8| 5.8| 1.2| 1.2| 0.7|
2.5
|
2.5
| 2.5| 2.5| 0.75
13| VT| 30
11-4C| CT
18| VT|
40
| 4| 6
15-4C| CT
22| VT| 6| 6
26| 22-4C| CT| 50| 10| 10
36| VT| 75| 16| 16
30-4C| CT| 13.5| 13.5
44| VT| 100| 25| 25
53| 45-4C| CT
65| VT| 125| 35| 35
55-4C| CT
Note: The wires shown are 600V PVC insulated electric wire with permissible
temperature of 70°C.
These wires are selected assuming that the ambient temperature is 40°C or
less.
Table 2.2 The size of main circuit fuses for compliance to Low Voltage
Directive
Voltage
|
Converter type: RHC□
|
Mode
| Fuse Rating (*1)
---|---|---|---
Rated current [A]| Class| The recommend fuses (Manufacturer)
400V
series
| 7.5-4C| CT / VT| 30| IEC60269-4| CR6L-30/UL (Fuji Electric)
11-4C| 50| CR6L-50/UL (Fuji Electric)
15-4C
22-4C| 75| CR6L-75/UL (Fuji Electric)
30-4C| 100| CR6L-100/UL (Fuji Electric)
45-4C| 150| CR6L-150/UL (Fuji Electric)
55-4C| CT| 200| CR6L-200/UL (Fuji Electric)
*1) Breaking capacity: 10kA min, Rated voltage: 500V min
Compliance with EMC Directive
3-1 Overview
The CE marking of the product does not certify that the entire machine to
which you apply Fuji product complies with the EMC Directive. Thus presenting
the CE marking for the entire machine will be the responsibility of the
machine manufacturer. The reason is that the CE marking of Fuji product
assumes the product is used under certain conditions. Using the product under
these conditions is up to the machine manufacturer.
In general, various products in addition to Fuji product are used in a
machine. Thus the machine manufacturer should take care of the entire machine.
One of the conditions as described above, is that the recommended EMC filters
should be used together with Fuji “RHC-C” series, installing them in a metal
control panel following this appendix.
3-2 EMC Filter
The Table 3.1 shows EMC filter types recommended by Fuji and applicable
converters. These filters have been conceived to be installed on the side of
the converter.
Table 3.1 EMC Filter Dimension List
Applicable Converter| CT / VT
Mode
| Filter type| EMC filter| ****
ACL
---|---|---|---|---
External dimensions| Terminals| Moun
-ting
| ****
Fig
W| W1| H| H1| D| Main| G
RHC7.5-4C| CT| ****
FN3258-30-47
| ****
270
| ****
255
| ****
50
| ****
30
| ****
85
| ****
10mm2
(Max)
| ****
M5
| ****
M5
| ****
3.1
| ****
–
VT
RHC11-4C| CT
VT
RHC15-4C| CT
VT| ****
FN3258T-75-34
| ****
318
| ****
255
| ****
80
| ****
60
| ****
135
| ****
25mm2
(Max)
| ****
M6
| ****
M6
| ****
–
RHC22-4C| CT
VT
RHC30-4C| CT
VT
RHC45-4C| CT| ****
FN3258T-100-35 ACL-74B (*1)
| ****
330
| ****
255
| ****
90
| ****
65
| ****
150
| ****
50mm2
(Max)
| ****
M10
| ****
M6
| ****
RST side, 1piece – 2turns
VT
RHC55-4C| CT
*1) When ACL is not used with the converter, 45kW and 55kW converters conform to Category C3 conducted emission and C2 radiated emission. 
3-3 Recommended Installation
Let an electrical engineer follow the steps below to wire your converter and
filter. To comply with the EMC directive, follow as close as possible the
steps below.
- First, check if the filter’s rated current, voltage, and type are correct.
- Make holes according to the installation position of the filter on the control panel. To reduce the contact resistance between the filter and the control panel, remove paint around the filter installation holes.
- Connect the input power supply to the input terminals (LINE) and the earth line to the earth stud of the filter. Then, use a wire as short as possible to connect the output terminal (LOAD) of the filter to the MC or harmonic filter of your converter. If a ferrite core (ACL) is attached, pass the L1, L2 and L3 wiring through the ferrite core on the input terminal (LINE) side.
- Connect the converter’s output lines to the load. Use wires as short as possible. Connect both the converter and the load to the earth using the earth terminals. If you use shielded wires, connect the shield so that the shield of the shielded wires completely fills the periphery of the holes at the entrance to the control panel.
- Use a shielded wire to wire to the control terminals on the converter. Make sure that the shield wire is connected to earth. Use wires as short as possible in all connections. Separate the wiring from the power supply to the filter and that from the converter to the load as far as possible.
- If radiated noise from the inverter exceeds the permissible level, enclose the converter and its peripherals within a metal panel as shown in Figure 3.2.
- When using single-phase input power for control circuit, do not connect neutral line directly to control circuit. Insert an insulation transformer at the power supply side.
