UR8FH綜合保護裝置，GE通用電氣
時序圖下面的時序圖顯示了交流電壓的關系直流輸出和電源產生的兩個系統信號的輸入功率：交流故障和輸入功率中斷，超過電源保持時間（21毫秒最小）將產生完全功率ACFAIL和SYS RESET的關閉/通電循環。該電源是一個已安裝的插入式模塊在任何標準IC697機架或VME的最左側插槽中積分器機架。
UR8FH綜合保護裝置有關其他安裝信息，請參閱GFK-1179，安裝指南符合標準，配有PLC pro 編程軟件電源門通過抓取可以輕松打開電源門用右手拇指或用手指甲輕輕地把門拉向你。使用從底部拉出車門時要小心可能導致鉸鏈或車門斷裂。輸入電壓和接地電源輸入端子板提供兩個端子連接120或240 VAC或125 VDC電源2為了安全和框架，提供了額外的端子接地連接。電源輸入連接應由銅AWG#16（1.33 mm2）電線制成，額定功率為75攝氏度（167華氏度）。每個端子可以接受實心或多股導線，但任何給定端子的導線應相同類型和尺寸。建議在電源上安裝一個接地端子電源應連接至機架上的GND端子，并使用AWG銅線（3.31 mm2）接地，額定功率為75 C（167 F）和環形端子，以確保足夠的接地。使用螺母和星形墊圈連接每根導線建議使用GND接線片。系統抗噪性必須采取兩個簡單的步驟來正確接地可編程控制器系統，以減少由于電噪聲引起的錯誤可能性。1、電源上的一個接地端子必須連接到任一側的GND端子使用AWG#12（3.3 mm2）導線連接機架。這個第二個接地端子應連接到進線安全接地。2、必須連接機架上的GND端子到一個良好的地面。
The timing diagram below shows the relationship of the ac
input power to the dc outputs and to the two system signals generated by the power supply: ACFAIL andInput power interruptions which exceed the
power supply holdup time (21 milliseconds
minimum) will result in a complete power
down/power up cycle of ACFAIL and SYSRESET.This Power Supply is a plug-in module that is installed
in the leftmost slot of any standard IC697 rack or VME
Integrator ’s rack. For additional installation information, refer to GFK-1179, Installation Guidelines for
Conformance to Standards, shipped with the PLC programming softwarePower Supply Door
The power supply door can easily be opened by grasping
the upper left corner of the door with your right thumb or
a fingernail and gently pulling the door towards you. Use
care when opening the door since pulling from the bottom
can cause the hinge or the door to break.
Input Voltage and Grounding
The power input terminal board provides two terminals for
connecting 120 or 240 VAC, or 125 VDC power Two
additional terminals are provided for safety and frame
ground connections. Power input connections should be
made with copper AWG #16 (1.33 mm2 ) wire rated for
75C (167F).
Each terminal can accept solid or stranded wires, but
the wires into any given terminal should be the same
type and size.
It is recommended that one Ground terminal on the power
supply be connected to the GND terminal on the rack and
to earth using copper AWG #12 (3.31 mm2 ) wire rated for
75C (167F) and a ring terminal to ensure adequate
grounding. Use of a nut and star washer for each wire on
the GND lug is recommended.System Noise Immunity
Two easy steps must be taken to properly ground the
programmable controller system to reduce the possibility of errors due to electrical noise.
1. One Ground terminal on the power supply must
be connected to the GND terminal on either side
of the rack using AWG #12 (3.3 mm2 ) wire. The
second Ground terminal should be connected to
incoming safety ground.
2. The GND terminal on the rack must be connected
to a good earth ground.
