Sel SEL-DTA2, Инструкция по эксплуатации

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5.6
SEL-DTA2 Instruction Manual
Date Code 20020329
Maintenance and Testing
Introduction
No Prompting Message Issued to Terminal Upon Power-Up
Step 1. Terminal not connected to SEL-DTA2 Port 1.
Step 2. Wrong baud rate.
Step 3. Improper connection of terminal to system.
Step 4. Port 1 timeout interval set to a value other than zero.
Step 5. SEL-DTA2 main board failure.
SEL-DTA2 Fails to Gain Access to Relay
Step 1. Relay baud rate does not agree with SEL-DTA2 baud rate.
Step 2. SEL-DTA2 passwords not identical to relay passwords.
System Does Not Display Faults
Step 1. SEL-DTA2 connected to relay port which is not designated
automatic (relay may be equipped with old software which
does not support multiple automatic message ports).
Step 2. Relay baud rate does not agree with SEL-DTA2 baud rate.
Step 3. Improper connection of SEL-DTA2 to relay.
Terminal Displays Meaningless Characters
Step 1. Incorrect baud rate setting.
Step 2. Check terminal configuration. See Section 3:
Communications .
Self-Test Failure: ROM
Step 1. EPROM failure. Replace EPROM.
Self-Test Failure: RAM
Step 1. Failure of static RAM IC. Replace RAM.
Self-Test Failure: SET
Step 1. EEPROM failure. Replace EEPROM.
Self-Test Failure: Display
Step 1. Loose or disconnected display module cable.
Step 2. Display module failure.
At Power-Up, Display Stays Darkened
Step 1. SEL-DTA2 automatic message port (Port 1) is in the XOFF
state. Connect a terminal to Port 1 and issue <CTRL>Q to
enter the XON state.