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技術(shù)說明: 1756-PA75R 冗余電源模塊 能夠?qū)崿F(xiàn)自動(dòng)機(jī)箱負(fù)載共享

1756-PA75R是一個(gè)冗余電源。此電源的功能與標(biāo)準(zhǔn)電源相似，只是此模塊安裝在機(jī)箱外部，并與目錄號(hào)相同的冗余電源配對。

1756-PA75主要用于冗余操作，能夠在冗余電源對之間實(shí)現(xiàn)自動(dòng)機(jī)箱負(fù)載共享。它還安裝有單獨(dú)的狀態(tài)指示器，以指示電源對的操作。它還有一個(gè)固態(tài)繼電器，提供觸點(diǎn)輸出，當(dāng)連接信號(hào)裝置時(shí)，可用于指示電源狀態(tài)。

構(gòu)建一個(gè)冗余電源對，需要一對電源或兩(2)個(gè)1756-PA75R、兩(2)條冗余電源電纜(如1756-CPR2、1756-CPR2D和1756-CPR2U)、一(1)個(gè)冗余電源機(jī)箱適配器(目錄號(hào)為1756-PSCA2、1756-PSCA2K或1756-PSCA2XT)和可選信號(hào)設(shè)備(如用于監(jiān)控電源運(yùn)行狀態(tài)的信號(hào)器)

1756-PA75R在輸入電壓范圍為85-265VAC、47-63 Hz，標(biāo)稱值為120VAC /240VAC和50/60 Hz時(shí)運(yùn)行。它的輸入功率要求為120VA/115 w,在0..+60℃C(+3...+140°F)下工作時(shí)，輸出功率額定值為75W，在1.2'VDC下的電流容量為1.2A;4A為3.3伏直流電;5.1伏直流電時(shí)為13安，24伏直流電時(shí)為2.8安。安裝信號(hào)器裝置時(shí)，推薦的信號(hào)器為240VAC 50/60 Hz，240V DC,50 mA，僅電阻式。

1756-PA75R的尺寸約為6.9x5.7x 5.4英寸。該電源的重星約為3.2磅，該電源的報(bào)警器和導(dǎo)線類別分別為3類和1類。1756-PA75R的信號(hào)器線規(guī)格為22-14AWG，在167F下絞合，由銅制成。這個(gè)電源的導(dǎo)線尺寸是14AWG。Allen-Bradey 1756-PA75R具有基于IEC 61000-4-5的浪涌瞬變抗擾度。該電源的浪涌瞬態(tài)抗擾度為1kV線-線(DM )在信號(hào)端口上為2kV線-地(CM)。1756-PA75R的傳導(dǎo)射頻抗擾度為10 Vrms，1 kHz正弦波的80%AM范圍為150 kHz至80 MHz。根據(jù)IEC /CISPR出版物11，1756-PA75R被視為1級A類設(shè)備。請記住，在適當(dāng)?shù)念A(yù)防措施下，由于干擾和輻射，在其他環(huán)境中確保電磁兼容性可能存在潛在困難。

Product introduction

Technical note: The 1756-PA75R redundant power module enables automatic chassis load sharing

The 1756-PA75R is a redundant power supply. This power supply functions similarly to a standard power supply, except that this module is mounted outside the case and paired with a redundant power supply with the same directory number.

The 1756-PA75 is primarily used for redundancy operations and enables automatic chassis load sharing between redundant power pairs. It is also fitted with a separate status indicator to indicate the operation of the power pair. It also has a solid-state relay that provides a contact output that can be used to indicate the status of the power supply when connected to a signaling device.

Build a redundant power pair, A pair of power supplies or two (2) 1756-PA75R, two (2) redundant power cables (such as 1756-CPR2, 1756-CPR2D, and 1756-CPR2U), and one (1) redundant power case adapter (catalog number 1756-PSCA2, 1756-PSCA2K, or 1756-PSCA) are required 2XT) and optional signaling devices (such as signalers for monitoring power operation status)

The 1756-PA75R operates in the input voltage range of 85-265VAC, 47-63 Hz, nominal values of 120VAC /240VAC, and 50/60 Hz. Its input power requirement is 120VA/ 115w, at 0... +60℃C(+3... +140°F) with an output power rating of 75W and a current capacity of 1.2A at 1.2’vdc; 4A is 3.3 volts direct current; It is 13 amps for 5.1 volts DC and 2.8 amps for 24 volts DC. When installing a signalizer device, the recommended signalizer is 240VAC 50/60 Hz, 240V DC,50 mA, resistance-only.

The 1756-PA75R measures approximately 6.9x5.7x 5.4 inches. The weight of the power supply is about 3.2 pounds, and the alarm and wire classes of the power supply are Class 3 and Class 1, respectively. The 1756-PA75R's signal wire is 22-14AWG, twisted at 167F and made of copper. The wire size of this power supply is 14AWG. Allen-Bradey 1756-PA75R has surge transient immunity based on IEC 61000-4-5. The surge transient immunity of the power supply is 1kV wire-to-wire (DM) and 2kV wire-to-ground (CM) on the signal port. The 1756-PA75R has a conducted RF immunity of 10 Vrms and an 80%AM range of 150 kHz to 80 MHz for a 1 kHz sine wave. According to IEC /CISPR publication 11, 1756-PA75R is considered A Class 1 Class A device. Keep in mind that, with proper precautions, there may be potential difficulties in ensuring electromagnetic compatibility in other environments due to interference and radiation.

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