227 series explained
Background: | - 00568F
|
227 series |
Manufacturer: | Kawasaki Heavy Industries, Kinki Sharyo |
Factory: | Hyogo and Osaka |
Replaced: | 103 series, 105 series, 115 series, 117 series |
Yearconstruction: | 2014 - present |
Yearservice: | 14 March 2015 |
Formation: | 2/3 cars per trainset |
Depots: | Hiroshima, Hineno |
Lines: | Sanyo Main Line, Kabe Line, Kure Line (227-0 series) Kisei Main Line, Sakurai Line, Wakayama Line (227-1000 series) Sanyo Main Line, Hakubi Line, Uno Line, Honshi–Bisan Line (227-500 series) |
Carbody: | Stainless steel |
Carlength: | - 19570mm (end cars)
- 19500mm (intermediate cars)
|
Width: | 2950mm |
Height: | 3630mm |
Floorheight: | 1120mm |
Doors: | 3 pairs per side |
Traction: | Variable frequency
|
Poweroutput: | 270kW × 2 per motored car |
Electricsystem: | (overhead catenary) |
Collectionmethod: | Pantograph |
Safety: | ATS-SW2 D-TAS (227-0 series) ATS-P3, CBTC and Dead man's switch (227-1000 series) |
The is a DC electric multiple unit (EMU) train operated by West Japan Railway Company (JR-West) for use on suburban services in the Hiroshima and Okayama area of Japan since 14 March 2015,[1] [2] [3] with plans for additional sets in the Kinki Region beginning in 2019.[4]
Design
The trains have unpainted stainless steel bodies. Each motored car has one motored bogie. The first batch of trains will be branded "Red Wing", with logos applied to the body sides and to the prominent anti-fall plates on the front ends, which inspired the name.[5]
The passenger saloons use LED lighting, and the trains are equipped with universal access toilets and wheelchair spaces. They are also equipped with LED passenger information displays.[6]
The 227 series design is based on the earlier 225 series, with lightweight stainless steel bodies.
Variants
- 227-0 series: 2- and 3-car sets for use on the Sanyō Main Line, Kabe Line, and Kure Line services, branded Red Wing
- 227-1000 series: 2-car sets for use on Wakayama Line services
- 227-500 series: 2- and 3-car sets for use on the Sanyō Main Line, Hakubi Line, Uno Line, and Honshi–Bisan Line services, branded Urara
227-0 series
227-0 series Red Wing |
Service: | present |
Manufacturer: | |
Replaced: | 115 series |
Yearconstruction: | 2014–2019 |
Numberbuilt: |
|
Formation: | 2/3 cars per trainset |
Fleetnumbers: | - A01–A65 (3-car sets)
- S01–S42 (2-car sets)
|
Capacity: | - 259 (108 seated) per 2-car set
- 408 (180 seated) per 3-car set
|
Depots: | Hiroshima |
The 227-0 series fleet consists of 276 vehicles (42 two-car sets and 64 three-car sets), which were delivered from autumn 2014 for test running and driver training before entering revenue service initially on the Sanyo Main Line between and, replacing JNR-era 115 series EMUs. The trains were also intended to displace 115 series EMUs on the Kure Line and Kabe Line. The entire fleet was delivered by February 2019.[7]
The fleet entered revenue service from 14 March 2015. They were the first new trains to operate in the Hiroshima area since the 113-3000 series, which was introduced near the end of JNR; trains introduced since the series were inherited from the Kansai area.[8] The last sets of this sub-series delivered were 2-car sets S41 and S42 in February 2019. [9]
In January 2022, it was announced that the 227-0 series would undergo a trial for platform-side cameras. The cameras would be activated on the right side of the train relative to the direction of driving.[10]
Set A65 was formed in 2022 by combining two cars (KuMoHa and MoHa) from three-car set A11 and one car (KuMoHa) from three-car set A33.[11]
Formations
The 227 series fleet consists of 42 two-car and 64 three-car sets, allowing formations of up to eight cars to be formed in service.[12]
3-car sets
The three-car sets are numbered A01 onward, and are formed as shown below with all three cars motored (one motored bogie per car).[13]
Designation | Mc | M | M'c |
---|
Numbering | KuMoHa 227-0 | MoHa 226-0 | KuMoHa 226-0 |
---|
Weight (t) | 40.2 | 37.1 | 40.5–40.6 |
---|
Capacity (total/seated) | 133/56 | 149/72 | 126/52 | |
---|
- The seating capacity figures above include 12 flip-down seats in the end cars and 16 in the intermediate cars.[13]
- The KuMoHa 227 car is fitted with a WPS28E single-arm pantograph.[13]
- The KuMoHa 226 car has a universal access toilet.[13]
2-car sets
The two-car sets are numbered S01 onward, and are formed as shown below with both cars motored (one motored bogie per car).[13]
Designation | Mc | M'c |
---|
Numbering | KuMoHa 227-0 | KuMoHa 226-0 |
---|
Weight (t) | 40.2 | 40.5–40.6 |
---|
Capacity (total/seated) | 133/56 | 126/52 | |
---|
- The seating capacity figures above include 12 flip-down seats in each car.[13]
- The KuMoHa 227 car is fitted with a WPS28E single-arm pantograph.[13]
- The KuMoHa 226 car has a universal access toilet.[13]
Interior
Passenger accommodation consists of transverse seating with flip-over seat backs, and longitudinal bench seating at the ends of cars. Flip-down seats are also provided next to the doorways.
Fleet details
3-car sets
Set No. | Manufacturer | Date delivered |
---|
A01 | | 7 October 2014[14] |
A02 |
A03 | | 2 October 2014 |
A04 | Kinki Sharyo | January 2015[15] |
A05 |
A06 | Kawasaki Heavy Industries | January 2015[16] |
A07 | Kinki Sharyo | February 2015[17] |
A08 |
A09 | Kawasaki Heavy Industries |
A10 | | |
A11 | | |
A12 | | |
A13 | | |
A14 | | |
A15 | | |
A16 | Kawasaki Heavy Industries | April 2015[18] |
A17 | | |
A18 | | |
A19 | | |
A20 | | |
A21 | | |
A22 | | |
A23 | | |
A24 | | |
A25 | | |
A26 | | |
A27 | | |
A28 | | |
A29 | | |
A30 | | | |
2-car sets
Set No. | Manufacturer | Date delivered |
---|
S01 | | January 2015 |
S02 | February 2015 |
S03 | April 2015 |
S04 | | |
S05 | | |
S06 | | |
S07 | | |
S08 | | |
S09 | | |
S10 | | |
S11 | | |
S12 | | |
S13 | | |
S14 | | |
S15 | | |
S16 | | |
S17 | | |
S18 | | |
S19 | | |
S20 | | |
S21 | | |
S22 | | |
S23 | | |
S24 | | |
S25 | | |
S26 | | |
S27 | | |
S28 | | |
S29 | | |
S30 | | | |
227-1000 series
227-1000 series |
Service: | 16 March 2019present |
Manufacturer: | Kawasaki Heavy Industries |
Yearconstruction: | 2018–2019 |
Numberbuilt: | 56 vehicles (28 sets) |
Formation: | 2 cars per trainset |
Depots: | Hineno |
In March 2018, JR West announced plans to introduce a new version of 227 series trains to Sakurai and Wakayama Lines, as well as part of Kisei Main Line, from Spring 2019. The planned 56-car fleet (28 sets of 2-car units) was completed by the end of September 2019,[19] and would displace all 105 series and 117 series trains on the two lines by Spring 2020. Once the order is complete, the trains would have smart card readers on board, expanding ICOCA acceptance to all JR West service in Nara prefecture and on Wakayama Line.
The fleet entered service from 16 March 2019.[20]
Formation
The sets are formed as follows.
Car No. | 1 | 2 |
---|
Designation | M'c | Mc |
---|
Numbering | KuMoHa 226-1000 | KuMoHa 227-1000 |
---|
Capacity (total) | 130 | 137 | |
---|
- The seating capacity figures above include longitudinal seats in each car.
- The KuMoHa 227 car is fitted with a WPS28E single-arm pantograph.
- The SD sets are equipped with a second de-icing pantograph.
- The KuMoHa 226 car has a universal access toilet.
Interior
Passenger accommodation consists of longitudinal bench seating throughout. As the 227-1000 series trains are equipped for operation, doorways are equipped with ticket machines.[6]
Fleet details
Set No. | Date delivered |
---|
SD01 | September 2018[21] |
SD02 |
SD03 | November 2018[22] |
SD04 |
SD05 |
SD06 | December 2018[23] |
SD07 |
SD08 |
SR01 | January 2019[24] |
SR02 |
SR03 |
SR04 | February 2019[25] |
SR05 |
SR06 | March 2019[26] |
SR07 |
SR08 | March 2019[27] |
SR09 |
SR10 |
SR11 | July 2019[28] |
SR12 |
SR13 | 2019[29] |
SR14 |
SS01 | September 2019[30] |
SS02 |
SS03 |
SS04 | September 2019 |
SS05 |
SS06 | |
227-500 series
227-500 series Urara |
Service: | 22 July 2023present |
Yearconstruction: | 2023–present |
Numberconstruction: |
|
Numberbuilt: |
|
The series will consist of 13 two-car sets and 25 three-car sets (101 cars in total), and were first announced by JR West in May 2022 for use on rail lines serving Okayama and Bingo, such as the San'yō Line.[31] Designated as 227-500 series, the first three sets were delivered from Kinki Sharyo in February 2023.[32] The series was given the brand name owing to a naming contest run by JR West. The sets carry a pink livery, which is associated with cherry blossoms as well as the softer climate experienced along the lines in which these trainsets will be running.
The first of these sets entered revenue service on 22 July 2023 on the Sanyo Line and the Hakubi Line.[33] As of 20 January 2024, this subseries operates on the Sanyo Main Line (Himeji - Mihara), the Hakubi Line (Okayama - Niimi), the Uno Line and the Honshi–Bisan Line (Chayamachi - Kojima).[34]
Fleet details
3-car sets
2-car sets
Set No. | Manufacturer | Date delivered |
---|
R1 | | February 2023 |
R2 |
R3 |
R4 | 9 March 2023[45] |
R5 |
R6 | 23 March 2023[46] |
R7 |
R8 |
R9 | Kawasaki Railcar Mfg. | December 2023[47] |
R10 | Kinki Sharyo | November 2023 |
R11 | December 2023 |
R12 | Kawasaki Railcar Mfg. | December 2023 |
R13 | |
Further reading
- ja:「JRシティネットワーク広島」のブランディング . "JR City Network Hiroshima" branding overview . . Koyusha . Japan . 56 . 660 . 96–99 . Japanese . April 2016.
- ja: 227系1000番台 . 227-1000 series . . Koyusha . Japan . 58 . 692 . 58–61 . Japanese . December 2018.
External links
Notes and References
- Web site: http://www.chugoku-np.co.jp/local/news/article.php?comment_id=63181&comment_sub_id=0&category_id=112&localfrom=local&category_list=112&pl=3810699256 . ja:JR西が三十数年ぶり新型電車 . New trains from JR-West for first time in over 30 years . Koji . Yamamoto . 15 June 2014 . Chugoku Shimbun Alpha . The Chugoku Shimbun . Japan . Japanese . 19 June 2014.
- Web site: JR西日本、広島地区に227系近郊形直流電車を投入 . JR-West to introduce 227 series DC suburban trains in Hiroshima area . 19 June 2014 . The Page . Wordleaf Corporation . Japan . Japanese . https://web.archive.org/web/20140619092004/http://thepage.jp/detail/20140619-00000020-wordleaf . 19 June 2014 . 19 June 2014 . dead .
- http://www.westjr.co.jp/press/article/items/141219_00_hiroshima.pdf. ja:平成27年春のダイヤ改正について. Spring 2015 timetable revision details. News release. West Japan Railway Company, Hiroshima Division. 19 December 2014. Japanese. 8. 9 March 2015. 21 January 2015. https://web.archive.org/web/20150121140628/http://www.westjr.co.jp/press/article/items/141219_00_hiroshima.pdf. live.
- ja:和歌山線・桜井線への新型車両導入と車載型IC改札機を使用したICOCAエリア拡大について . New train model introduction to Wakayama and Sakurai Lines, and expanded ICOCA service area with on-board smart card readers . West Japan Railway Company . 7 March 2018 . https://www.westjr.co.jp/press/article/2018/03/page_12012.html . Japanese . 2018-03-07 . 6 October 2021 . https://web.archive.org/web/20211006081825/https://www.westjr.co.jp/press/article/2018/03/page_12012.html . live .
- Web site: http://rail.hobidas.com/news/info/article/jr227.html. ja: JR西日本 227系に車輌愛称名導入. JR-West to introduce brand name for 227 series. 6 March 2015. Tetsudo Hobidas. Neko Publishing Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20150306131949/http://rail.hobidas.com/news/info/article/jr227.html. 6 March 2015. 6 March 2015. live.
- Web site: 2018-09-11 . JR西日本227系1000番台 - 和歌山線・桜井線の新型車両、主要諸元は . JR West 227-1000 series - Wakayama Line and Sakura Line new vehicle, main specifications . live . https://web.archive.org/web/20180911110435/https://news.mynavi.jp/article/20180911-227sd01/ . 11 September 2018 . 2022-01-23 . Mynavi News . ja.
- Web site: 10 May 2022 . JR西日本,岡山・備後エリアに導入する227系のデザインを決定 . JR West decides to design 227 series to be introduced in Okayama / Bingo area . May 10, 2022 . Japan Railfan Magazine Online . ja . 11 May 2022 . https://web.archive.org/web/20220511060222/https://railf.jp/news/2022/05/10/160000.html . live .
- June 2015 . ja:特集: 2015年春のJRダイヤ改正 . Special Feature: Spring 2015 JR Timetable Revision . . Japanese . 55 . 650 . 11–61.
- Web site: 14 February 2019 . 227系S41編成とS42編成が登場 . 227 series S41 and S42 formations appear . 24 December 2023 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . 27 June 2021 . https://web.archive.org/web/20210627200753/https://railf.jp/news/2019/02/14/110000.html . live .
- Web site: 24 January 2022 . 車両側面カメラを用いたワンマン方式の検証について . About verification of one-man method using vehicle side camera . live . https://web.archive.org/web/20220124051934/https://www.westjr.co.jp/press/article/items/210124_02_camera.pdf . 24 January 2022 . 24 January 2022 . westjr.co.jp . ja.
- Web site: 2022-11-15 . ja:広島の227系「RedWing」に、3連の「新」編成・A65が登場!? . Hiroshima 227 series "Red Wing" has a "new" 3-car formation, A65!? . 2023-07-27 . RM News . Neko Publishing . ja . Japan . 26 January 2023 . https://web.archive.org/web/20230126032640/https://rail.hobidas.com/rmnews/428351/ . live .
- ja:227系近郊形直流電車 . 227 series suburban DC EMU. . 54. 644. 58–60 . Japanese . December 2014.
- ja:227系近郊形直流電車 . 227 series suburban DC EMU. . 55. 647. 61–64 . Japanese . March 2015.
- ja: JR車両のうごき. JR rolling stock changes . Tetsudō Daiya Jōhō Magazine . 44. 371 . 127 . Japanese . March 2015.
- Web site: http://railf.jp/news/2015/01/23/170000.html. ja: 近畿車輛から227系A04編成+A05編成が出場. 227 series sets A04 & A05 delivered from Kinki Sharyo. 23 January 2015. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20150123114026/http://railf.jp/news/2015/01/23/170000.html. 23 January 2015. 23 January 2015. live.
- Web site: 31 January 2015 . ja: 川崎重工から227系A06編成+S01編成が出場 . 227 series sets A06 and S01 delivered from Kawasaki Heavy Industries . http://railf.jp/news/?01311800 . live . https://web.archive.org/web/20150131123025/http://railf.jp/news/?01311800 . 31 January 2015 . 31 January 2015 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . Japanese . Japan.
- Web site: http://railf.jp/news/2015/02/25/162000.html. ja: 227系A09編成+S02編成が出場. 227 series sets A09 & S02 delivered. 25 February 2015. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20150225091251/http://railf.jp/news/2015/02/25/162000.html. 25 February 2015. 25 February 2015. live.
- Web site: http://railf.jp/news/2015/04/25/182500.html. ja: 227系A16編成+S03編成が出場. 227 series sets A16 & S03 delivered. 26 April 2015. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20150427023210/http://railf.jp/news/2015/04/25/182500.html. 27 April 2015. 27 April 2015. live.
- Web site: 2019-10-01 . ja:227系1000番台6両が登場 . Six 227-1000 series cars delivered . 2023-11-06 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 7 April 2023 . https://web.archive.org/web/20230407114554/https://railf.jp/news/2019/10/01/204500.html . live .
- Web site: 2019-03-17 . ja:227系1000番台の営業運転開始 . 227-1000 series enters revenue service . 2023-11-06 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 23 September 2020 . https://web.archive.org/web/20200923084637/https://railf.jp/news/2019/03/17/205200.html . live .
- Web site: https://railf.jp/news/2018/09/08/173000.html. ja: 227系1000番台が報道公開される. 8 September 2018. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20180908151017/https://railf.jp/news/2018/09/08/173000.html. 8 September 2018. 8 September 2018. live.
- Web site: 227系1000番台SD03・SD04・SD05編成が湖西線で試運転 . Trial run of 227-1000 series sets SD03, SD04 and SD05 on the Kosei line . Japan Railfan Magazine Online . Koyusha Co., Ltd. . 26 December 2023 . Japanese . 9 November 2018 . 5 April 2023 . https://web.archive.org/web/20230405170033/https://railf.jp/news/2018/11/09/170000.html . live .
- Web site: 227系1000番台SD06・SD07・SD08編成が登場 . 227-1000 series sets SD06, SD07 and SD08 delivered . Japan Railfan Magazine Online . Koyusha Co., Ltd. . 26 December 2023 . Japanese . 7 December 2018 . 5 April 2023 . https://web.archive.org/web/20230405170032/https://railf.jp/news/2018/12/07/110000.html . live .
- Web site: 2018-12-21 . ja:227系1000番台SR01〜SR03編成が登場 . 227-1000 series sets SR01–SR03 delivered . 2023-11-06 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 5 April 2023 . https://web.archive.org/web/20230405164534/https://railf.jp/news/2018/12/21/170000.html . live .
- Web site: 227系1000番台SR04編成・SR05編成が登場 . 227-1000 series sets SR04 and SR05 delivered . Japan Railfan Magazine Online . Koyusha Co., Ltd. . 26 December 2023 . Japanese . 22 February 2019 . 5 April 2023 . https://web.archive.org/web/20230405164533/https://railf.jp/news/2019/02/22/000000.html . live .
- Web site: 2019-03-12 . ja:227系1000番台SR06編成・SR07編成が登場 . 227-1000 series sets SR06 and SR07 delivered . 2023-11-06 . Japan Railfan Magazine Online . ja . 6 April 2023 . https://web.archive.org/web/20230406162259/https://railf.jp/news/2019/03/12/160000.html . live .
- Web site: 2019-03-23 . ja:227系1000番台6両が登場 . Six 227-1000 series sets delivered . 2023-11-06 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 7 August 2020 . https://web.archive.org/web/20200807031350/https://railf.jp/news/2019/03/23/201000.html . live .
- Web site: 2019-07-23 . ja:ja:227系1000番台SR11・SR12編成が登場 . 227-1000 series sets SR11 and SR12 delivered . 2023-11-06 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 11 February 2023 . https://web.archive.org/web/20230211052308/https://railf.jp/news/2019/07/23/170000.html . live .
- Book: Kotsu Shimbun . 9784330024233 . Japan . 161 . ja:『JR電車編成表』2023夏 . JR fleet formation tables, summer 2023.
- Web site: 2019-09-11 . ja:227系1000番台SS01・SS02・SS03編成が登場 . 227-1000 series sets SS01, SS02, and SS03 delivered . 2023-11-06 . Japan Railfan Magazine Online . ja . 14 April 2021 . https://web.archive.org/web/20210414140510/https://railf.jp/news/2019/09/11/173000.html . live .
- Web site: 10 May 2022 . 岡山・備後エリアの新型車両デザイン決定!コンセプトは「豊穏の彩」 . New vehicle design decision for Okayama / Bingo area! The concept is "Aya of abundance" . 10 May 2022 . tetsudo.ch . ja . 10 May 2022 . https://web.archive.org/web/20220510051226/https://tetsudo-ch.com/12402489.html . live .
- Web site: 9 February 2023 . 227系500番台が近畿車輌から出場 . Delivery of 227-500 Series Sets From Kinki Sharyo . https://web.archive.org/web/20230209104047/https://railf.jp/news/2023/02/09/160000.html . 9 February 2023 . 11 February 2023 . Japan Railfan Magazine Online . ja.
- Web site: 22 July 2023 . 227系500番台「Urara」が営業運転を開始 . 227-500 series "Urara" starts commercial operation . live . https://web.archive.org/web/20230723040445/https://railf.jp/news/2023/07/22/180000.html . 23 July 2023 . 25 July 2023 . Japan Railfan Magazine Online . ja.
- Web site: 27 November 2023 . 新型車両 227 系「Urara」運行区間を拡大します . Service area expansion of the new 227 series "Urara" . 20 January 2024 . JR West . Japanese . Japan . 2 December 2023 . https://web.archive.org/web/20231202044817/https://www.westjr.co.jp/press/article/items/231101_00_press_227Urara.pdf . live .
- Web site: 2024-05-30 . ja:227系500番代L01編成・L02編成が登場 . 227-500 series sets L1 and L2 delivered . 2024-05-30 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan.
- Web site: 2023-12-01 . ja:227系500番台L3編成・L4編成・R10編成が登場 . 227-500 series sets L3, L4, and R10 delivered . 2023-12-01 . Japan Railfan Magazine Online . Koyusha . ja . Japan . 4 December 2023 . https://web.archive.org/web/20231204202746/https://railf.jp/news/2023/12/01/044500.html . live .
- Web site: 21 December 2023 . 227系500番代L5編成・L6編成・R11編成が登場 . 227-500 series sets L5, L6 and R11 formations are delivered . 24 December 2023 . Japan Railfan Magazine Online . Koyusha Co., Ltd . japanese . 24 December 2023 . https://web.archive.org/web/20231224021226/https://railf.jp/news/2023/12/22/053300.html . live .
- Web site: 2024-02-07 . ja:227系500番代L7編成・L8編成が登場 . 227-500 series sets L7 and L8 delivered . 2024-02-07 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 7 February 2024 . https://web.archive.org/web/20240207065546/https://railf.jp/news/2024/02/07/140200.html . live .
- Web site: 20 February 2024 . ja:227系500番代L9編成が登場 . 227-500 series set L9 delivered . 21 February 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan . 20 February 2024 . https://web.archive.org/web/20240220033746/https://railf.jp/news/2024/02/20/074000.html . live .
- Web site: 8 March 2024 . 227系500番代L10編成・L11編成が登場 . 227-500 series sets L10 and L11 delivered . 9 March 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan.
- Web site: 15 March 2024 . 227系500番代L12編成・L13編成が登場 . 227-500 series sets L12 and L13 delivered . 21 March 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . Japanese . Japan.
- Web site: 26 March 2024 . 227系500番代L14編成・L15編成が登場 . 227-500 series sets L14 and L15 delivered . 2 April 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . Japanese . Japan.
- Web site: 27 June 2024 . 227系500番代L16編成・L17編成が登場 . 227-500 series sets L16 and L17 delivered . 27 June 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . Japanese . Japan.
- Web site: 2024-08-02 . ja:227系500番代L20編成・L21編成が登場 . 227-500 series sets L20 and L21 appear . 2024-08-14 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . ja . Japan.
- Web site: 24 March 2023 . 227系500番台R4・R5編成が岡山地区で試運転を実施 . 227-500 series sets R4 and R5 are delivered . 24 March 2023 . Japan Railfan Magazine Online . ja . 24 March 2023 . https://web.archive.org/web/20230324065509/https://railf.jp/news/2023/03/10/082000.html . live .
- Web site: 227系500番台R6・R7・R8編成が登場 . 227-500 series sets R6, R7 and R8 are delivered . 24 March 2023 . Japan Railfan Magazine Online . ja . 24 March 2023 . https://web.archive.org/web/20230324033634/https://railf.jp/news/2023/03/24/081500.html . live .
- Web site: 2023-12-14 . ja:227系500番台R9編成・R12編成・R13編成が登場 . 227-500 series sets R9, R12, and R13 delivered . 2023-12-18 . Japan Railfan Magazine Online . Koyusha . ja . Japan . 18 December 2023 . https://web.archive.org/web/20231218221047/https://railf.jp/news/2023/12/14/053000.html . live .