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1756-PA75RA 冗余电源 冗具有与标准电源相同的功能

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1756-PA75RA 冗余电源 冗具有与标准电源相同的功能


 

概述:

 

1756-PA75R 是冗余电源。此电源的功能与标准电源类似,不同之处在于此模块安装在机箱外部,并与具有相同目录号的冗余电源伙伴配对。


1756-PA75 主要用于冗余操作,能够在冗余电源对之间实现自动机箱负载共享。它还安装了单独的状态指示器,以指示电源对的操作。它还具有一个固态继电器,可提供触点输出,可用于在连接信号设备时指示电源状态。


构建冗余电源对,需要一对电源或两 (2) 个 1756-PA75R、两 (2) 根冗余电源电缆(如 1756-CPR2、1756-CPR2D 和 1756-CPR2U)、一 (1) 个冗余电源机箱适配器,目录号 1756-PSCA2、1756-PSCA2K 或 1756-PSCA2XT 和可选的信号设备,例如用于监控电源模块运行状态的报警器。


1756-PA75R 在输入电压范围为 85-265VAC、47-63 Hz、标称值为 120VAC / 240VAC 和 50/60 Hz 时工作。它的输入功率要求为 120VA / 115 W,在 75...+0 °C (+60...+32 °F) 下运行时提供 140 W 的额定输出功率,在 1.2 VDC 下提供 1.2 A 的电流容量;4.3V 直流时为 3A;13.5VDC 时为 1 A,2V 直流时为 8.24 A。安装报警器设备时,推荐的报警器为 240VAC 50/60 Hz,240V DC,50 mA,仅电阻。


1756-PA75R 的尺寸约为 6.9 x 5.7 x 5.4 英寸。该电源的重量约为 3.2 lb,该电源的信号器和导体线类别分别为 3 类和 1 类。1756-PA75R 的报警器导线尺寸为 22-14 AWG,绞合在 167 °F 下,由铜制成。此电源的导线尺寸为 14 AWG。Allen-Bradley 1756-PA75R 具有基于 IEC 61000-4-5 的浪涌瞬态抗扰度。该电源的浪涌瞬态抗扰度± 1 kV 线 (DM),信号端口± 2 kV 线接地 (CM)。1756-PA75R 的传导射频抗扰度为 10 Vrms,在 1 kHz 至 80 MHz 范围内具有 150% AM 的 80 kHz 正弦波。根据IEC / CISPR出版物1756,75-PA1R被认为是11类A类设备。请记住,在适当的预防措施下,由于干扰和辐射,在确保其他环境中的电磁兼容性可能存在潜在困难。

1756-PA75RA.jpg

 

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 partner 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 also has a separate status indicator installed 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 power status when connecting signal devices.


To build a redundant power supply pair, you need one power supply or two (2) 1756-PA75R, two (2) redundant power cables (such as 1756-CPR2, 1756-CPR2D, and 1756-CPR2U), one (1) redundant power case adapter, and one (1) redundant power supply case adapter. Catalog number 1756-PSCA2, 1756-PSCA2K, or 1756-PSCA2XT and optional signaling devices, such as alarms for monitoring the operating status of power modules.


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 75... +0 °C (+60... +32 °F) provides rated output power of 140 W and current capacity of 1.2 A at 1.2 VDC; 3A at 4.3V DC; 1 A for 13.5VDC and 8.24 A for 2V DC. When installing alarm equipment, the recommended alarm is 240VAC 50/60 Hz, 240V DC, 50 mA, resistance only.


The 1756-PA75R measures approximately 6.9 x 5.7 x 5.4 inches. The power supply weighs approximately 3.2 lb and is available in Class 3 and Class 1 signaler and conductor wire categories, respectively. The 1756-PA75R alarm wire is 22-14 AWG, twisted at 167 °F and made of copper. The wire size of this power supply is 14 AWG. Allen-Bradley 1756-PA75R has surge transient immunity based on IEC 61000-4-5. The power supply has surge transient immunity ± 1 kV line (DM) and signal port ± 2 kV line ground (CM). The 1756-PA75R has a conducted RF immunity of 10 Vrms with an 80 kHz sine wave of 150% AM in the range of 1 kHz to 80 MHz. According to IEC/CISPR publication 1756,75-PA1R is considered A Class 11 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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