欣諭凍干機(ji)控(kong)制(zhi)系統是(shi)通過可校正(zheng)的(de)信(xin)(xin)號(hao)(hao)傳送(song)(song)器，控(kong)制(zhi)元件通過可校驗信(xin)(xin)號(hao)(hao)變送(song)(song)器直接(jie)連接(jie)到(dao)PLC 的(de)輸入(ru)模(mo)擬器上，信(xin)(xin)號(hao)(hao)至(zhi)少包括(kuo)硅油入(ru)口溫度(du)、箱體(ti)真空以(yi)及SIP 設(she)備的(de)排出口溫度(du)和箱體(ti)壓力。這些(xie)4-20ma 信(xin)(xin)號(hao)(hao)同(tong)時(shi)也通過電流回(hui)路連接(jie)到(dao)記(ji)錄儀上，所有其它的(de)模(mo)擬數(shu)據也傳送(song)(song)到(dao)記(ji)錄儀上，在(zai)記(ji)錄儀中(zhong)模(mo)擬數(shu)據轉化為(wei)數(shu)字格式，并被傳送(song)(song)到(dao)PLC 用于顯示在(zai)SCADA。
Critical control instruments are connected directly to 4-20 mA PLC analogue inputs, via signal transmitters. Signal calibration may be performed at the transmitter or via software in the SCADA system. These are as a minimum: the fluid inlet temperature, chamber vacuum, and the drain temperatures and chamber pressure for steam machines. These 4-20 mA signals are also connected via a current loop to the recorder. All other analogue process data is transmitted to the recorder where it is converted into a digital format and re-transmitted to the PLC for display on the SCADA.
Control Cabinet控(kong)制柜
控制(zhi)柜(ju)D立放置。所(suo)有(you)主要(yao)的控制(zhi)元件都(dou)安(an)裝在控制(zhi)柜(ju)內。
The control cabinet is free standing. All the main control components are installed within the control cabinet.
Programmable Logic Controller (PLC) 可編程序控制器(qi) (PLC)
控制系統基于OMRON PLC。
通過PLC 控(kong)(kong)制凍干機(ji)。PLC 直接控(kong)(kong)制凍干機(ji)的(de)所(suo)有功(gong)能。根據存儲到存儲器中(zhong)的(de)工藝參數和程(cheng)序，PLC 可以完成(cheng)整(zheng)個(ge)生產系統的(de)操作。
存儲在PLC 存儲器中(zhong)的程序(xu)可以控(kong)制所(suo)有(you)的功能，如：半自動和全(quan)自動凍(dong)干和除(chu)霜。在凍(dong)干過(guo)程中(zhong)，PLC 可比例控(kong)制板層溫度和箱體(ti)真空。
The Lyomax Compact control system is based on an Omron PLC.
Machine control is performed by the PLC. The PLC directly controls all the machine’s functions. According to process and plant data and the program downloaded to its memory, the PLC activates the outputs to properly operate the plant’s systems.
The program stored in the PLC’s memory is able to safely control all the functions such as semi-automatic and automatic freeze drying and defrosting. The PLC provides proportional control for the shelf temperature and digital control chamber vacuum during freeze-drying.
Sterile Room Control Panel無菌間控制面板
1 個鍛面拋光的不銹(xiu)鋼控制(zhi)面板安(an)裝在無菌區靠近(jin)凍干機門的墻上。控制(zhi)面板用于：
? 箱體照明
? 向(xiang)凍干(gan)箱內輸入空氣或(huo)氮氣
? 液壓(ya)壓(ya)塞(sai)系統操作（如安裝）
? 打開箱體排出閥
? 當凍(dong)干機內壓(ya)(ya)力(li)大于大氣壓(ya)(ya)時，數(shu)字顯(xian)示壓(ya)(ya)力(li)值
A satin finish stainless steel panel is supplied for fitting in the sterile area wall adjacent to the Lyophilizer door. Within the panel are mounted controls for:
?Activating the chamber illumination
?Admitting air/selected gas to the chamber
?Operating the hydraulic stoppering system (where fitted)
?Opening the chamber drain valve
?Digital pressure display, when the freeze dryer operates above atmospheric pressure.
