ALSTOM PIB1201A通道隔離卡件
輔助配電電子電源板SDCS-POW-1（參見單獨章節(jié)）生成不同級別的電壓。其中一些是通過CON-2電路板直接連接到電路板其他人被操縱，然后被轉(zhuǎn)移。電子電源系統(tǒng)與以兩種方式監(jiān)控電壓水平。有一個信號powerfail primary，用于監(jiān)控輸入POW-1板和a的電源電壓
信號powerfail輔助，用于監(jiān)控低電壓電平。如果一個電壓電平低于閾值產(chǎn)生跳閘信號。除此之外，還有一個用于5V電平。如果+5 V下降到跳閘電平以下，則通過硬件導(dǎo)致主重置。所有I/O寄存器
被強制為0，并且觸發(fā)脈沖被抑制。RS485串行通信信道控制板有兩個RS485通道。第一通道用于DCF 501/502的勵磁機控制，DCF 503/504或DCF 601/602（端子X16:1…3）
第二個用于控制面板（CDP），位于端子X33或X34。端子X33和X34接線內(nèi)部并聯(lián)。
DDCS信道集成控制板SDCS-CON-2具有集成的DDCS（數(shù)字驅(qū)動控制系統(tǒng)）通道傳輸速率敢達(dá)4 Mbit/s。該信道（V260）例如：。可用于現(xiàn)場總線模塊。終端X16:4和5用于模塊。
SDCS-POW-1板專為DCS 500設(shè)計
轉(zhuǎn)換器模塊和安裝在電子支架上。該板用于所有類型的與電流或電壓無關(guān)的模塊范圍
SDCS-POW-1在回掃配置中基于切換模式工作。它為SDCS-CON-1和所有其他電子板。輸入電壓可以是通過開關(guān)SW1選擇230 V AC或至115 V AC。下圖顯示了選擇AC輸入電壓的說明并且用于選擇編碼器電源電壓。
如果SDCS-CON-1帶有SDCS-IOB-1板，或SDCS-CON-2（不帶I/O板IOB-3）一起當(dāng)脈沖編碼器用于速度測量時，增量編碼器電源電壓必須通過跳線X5、X4和X3選擇。這兩個端子用于向現(xiàn)有端子添加額外電容，以增加電源緩沖時間。更多詳細(xì)數(shù)據(jù)可通過ABB代表索取。電源接口板用于轉(zhuǎn)換器模塊型號C1。有兩種不同版本
使用中。使用的類型有：-用于25 A、50 A和75 A轉(zhuǎn)換器的SDCS-PIN-11500V時-600 V時50 A轉(zhuǎn)換器的SDCS引腳12SDCS-PIN-1x板包括：-點火脈沖電路和脈沖變壓器-通過電流測量電樞電流變壓器
-晶閘管保護用緩沖電路（由RC電路和MOV元件組成）
Auxiliary power distribution
The electronic power supply board SDCS-POW-1
(see separate chapter) generates different levels of
voltages. Some of them are transferred via the
CON-2 board directly to the boards, where they are
used, others are manipulated and then transfered.The electronic power supply system with the different
voltage levels is monitored in two ways. There is a
signal powerfail primary, which monitors the input
power supply voltage of the POW-1 board and a
signal powerfail secondary, which monitors the low
voltage levels. If one voltage level drops below the
threshold a trip signal is generated.In addition to that there is a monitoring function for the
5 V level. If +5 V drops under the tripping level, it
causes a master reset by hardware. All I/O registers
are forced to 0 and the firing pulses are suppressed.RS485 serial communication channels
The control board has two RS485 channels. The first
channel is for field exciter control of DCF 501/502,
DCF 503/504 or DCF 601/602 (terminals X16:1...3)
and the second for the control panel (CDP) at terminals X33 or X34. The terminals X33 and X34 are wired
up in parallel internally.
DDCS Channel integrated
The control board SDCS-CON-2 has an integrated
DDCS (Digital Drive Control System) channel with a
tranfer rate up to 4 Mbits/s. This channel (V260) e.g.
can be used for fieldbus modules. The terminals
X16:4 and 5 are provided for power supply of the
modules.The SDCS-POW-1 board is designed for DCS 500
converter modules and is mounted on the electronic support. This board is used for all types of
modules independant from current or voltage
range.
The SDCS-POW-1 works on a switched mode basis in fly back configuration. It generates all necessary DC voltages for the SDCS-CON-1 and all
other electronic boards. The input voltage can be
selected via the switch SW1 either to 230 V AC or
to 115 V AC. The following figure shows the instructions for the selection of the AC input voltage
and for the selection of the encoder supply voltage.
If an SDCS-CON-1 with SDCS-IOB-1 board, or an
SDCS-CON-2 (without I/O board IOB-3) together
with a pulse encoder is used for speed measurement, the incremental encoder supply voltage must
be selected by jumpers X5, X4 and X3.These two terminals are used to add additional capacitance to the existing ones to increase the
mains buffering time. More detailed data is available on request via your ABB representative.The power interface board is used for converter
modules model C1. There are 2 different versions
in use. The used types are:
- SDCS-PIN-11 for 25 A, 50 A and 75 A converters
at 500V
- SDCS PIN-12 for 50 A converters at 600 V
The SDCS-PIN-1x boards consists of:
- firing pulse circuits and pulse transformers
- measurement of the armature current via current
transformers
- snubber circuit for thyristors protection
(consists of RC circuits and MOV elements)
