All shielded cable must be twisted conductor pairs with either a foil or a braided
shield. All signal lines should be shielded to prevent picking up stray signals from
adjacent equipment. Connect the shields as shown in the plant wiring diagram
(Figure 2-1). Wire exposed beyond the shield must not exceed two inches. The
other end of the shield must be left open and insulated from any other conductor.
Do not run shielded signal wires with other wires carrying large currents. See
manual 50532. EMI Control in Electronic Governing Systems, for more
information.

Installations with severe electromagnetic interference (EMI) may require shielded
cable run in conduit, double shielded wire, or other precautions. Contact
Woodward for more information.
An MPU loss-of-signal occurs when an MPU frequency of less than 100 Hz is
measured and the previously measured speed was greater than 120 Hz. The
alarm relay de-energizes, and the MPU FAIL LED turns on and remains on until
a reset or until power is cycled. If the TRIP ON MPU FAILURE option is "yes", a
trip occurs. If the previously measured speed is less than 120 Hz, it is assumed
that a normal rolldown has occurred. The MPU FAIL LED does not turn on, the
alarm relay does not de-energize, and no trip occurs.
After a normal rolldown, each ProTech unit monitors the MPU. If the MPU
frequency exceeds 110 Hz, the unit trips and annunciates the cause as NO RESET.
Woodward THICK TRUNK CABLE (6M) 5417-1115
Woodward THICK DROP, 7/8' MALE TO PIGTAIL, (0.3M) 5417-1116
Woodward THICK DROP, 7/8' MALE TO PIGTAIL, (1M) 5417-1117
Woodward THICK DROP, 7/8' MALE TO PIGTAIL, (3M) 5417-1119
Woodward THICK DROP, 7/8" MALE TO PIGTAIL, (6M) 5417-1281
Woodward MICRONET DROP, M12 FEMALE TO 7/8' MALE, (0.5M) 5417-1120
Woodward MICRONET DROP, 7/8' MALE TO M12 FEMALE, (1M) 5417-1127
Woodward MICRONET DROP, 7/8' MALE TO M12 FEMALE, (2M) 5417-1128
Woodward MICRONET DROP, 7/8" MALE TO M12 FEMALE, (3M) 5417-1245
| User name | Member Level | Quantity | Specification | Purchase Date |
|---|
wechat/whatsapp:
+86-181-44100-983
Email: kongjiangauto@163.com
Copyright © 2009 - 2024 Cld , All Rights Reserved K-JIANG All rights reserved