The IS200EROCH1ABB operates as a dedicated exciter regulator options card within the GE EX2100 control system. This card mounts into a single slot on the ERBP simplex or ERRB redundant backplane. It supports both M1 and M2 control sections effectively.
Specifically, the IS200EROCH1ABB includes a board identification device with a barcode and hardware revision. A green LED on the faceplate indicates power-on status. Moreover, this card enables communication with third-party ground detectors and bezel-mounted keypads.
This option card delivers reliable regulator support for critical excitation applications. Firstly, it reduces system downtime through redundant configuration compatibility. Secondly, the integrated keypad and tool connectors simplify local diagnostics. Furthermore, the IS200EROCH1ABB provides isolated RS-232C communication at baud rates from 1200 to 38.4 K.
Additionally, it supplies +70 V DC power to the ECTB contact terminal board. Consequently, engineers gain a stable power distribution pathway. Therefore, this card improves overall excitation system maintainability.
The IS200EROCH1ABB uses an 8-pin circular DIN keypad connector on its faceplate. Pin 1 and Pin 7 carry KPP24 (+24 V) for keypad power. Pin 2 transmits KPTX232, while Pin 3 receives KPRX232. Pins 4, 5, and 6 serve as KPCOM ground. Pin 8 provides KPRTS232 for flow control.
For ISBus communication, this card employs RS-422 transceivers. The IS200EROCH1ABB itself operates with RS-485, which includes RS-422 as a subset. In ERRB redundant racks, signals route from the transmitting DSPX to the EROC. The card then buffers and forwards these signals to the receiving DSPX.
Notably, the channels between M2 and C sections are not transformer coupled. This direct coupling enhances signal integrity and reduces distortion. Meanwhile, the tool connector uses a 9-pin plug with ground loop isolation via an internal DC converter. This design ensures reliable external computer communication.
To install the IS200EROCH1ABB, first power down the EX2100 system completely. Insert the card into a single slot on the ERBP or ERRB backplane. Ensure the faceplate aligns properly with the front bezel. Then secure the card by tightening the mounting screws.
For maintenance, regularly inspect the green LED on the faceplate. A lit LED confirms proper power supply. Additionally, clean the keypad and tool connectors using approved electronic contact cleaner. Avoid using excessive force when connecting or removing external keypads.
Specifically, verify the keypad cable pinout matches the IS200EROCH1ABB connector assignment. Use shielded cables for RS-232C connections to minimize noise. Also, check the ISBus transceivers if communication errors occur between M2 and C racks. Replace the card only when diagnostics point to a hardware failure.
1. Is the IS200EROCH1ABB compatible with redundant EX2100 systems?
Yes. The IS200EROCH1ABB works in both simplex (ERBP) and redundant (ERRB) backplanes. It supports M1, M2, and C section communication.
2. What baud rates does the keypad interface support?
The keypad connector uses RS-232C communication from 1200 to 38.4 K baud. Both the faceplate and backplane connectors support this range.
3. Does this card provide isolation for the tool connector?
Absolutely. An internal DC converter provides ground loop isolation for the 9-pin tool connector. This protects the external computer.
4. What power voltage does the ECTB connector supply?
The ECTB connector on the IS200EROCH1ABB supplies positive 70 V DC power to the contact output section of the IS200ECTB board.
5. How can I verify board revision and type?
The board identification device stores the barcode serial number, board type, and hardware revision. The M1 or M2 control reads this ID automatically.
| Brand Name | GE |
| Model No. | IS200EROCH1ABB |
| Product Type | Exciter Regulator Options Card |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
