SATEC SA300 ezPAC Operation Manual - Manual (Page 13)

Chapter 2 Device Description Modes of Operation
SA300 Substation Automation Unit 13
Modes of Operation
The SA300 can run in the following modes:
Operational Mode
Operational Mode is the common operation mode. All device features are available.
To put the device into Operational Mode, turn the PROGRAM-RUN key into the RUN
position.
When the device is in Operational Mode, the CPU LED flashes for 1 second with a 1-
second pause.
Energy Test Mode
Energy Test Mode tests the device energy measurement accuracy. All basic
measurements are available; energy accumulators are not affected; setpoints
operation, fault and power quality recorders are stopped. To put the device into the
Energy Test Mode, see Device Options Menu in Chapter 3, or Device Mode Control
in Chapter 11.
Program Mode
Program Mode is the common Operational Mode allowing the user to review or
change the device settings through the Terminal program. All device features are
available except the COM1 service port, which is captured by the SA300 Terminal
program. To put the device into Program Mode, turn the PROGRAM-RUN key into
the PROGRAM position. For more information on entering the Program Mode, see
Opening a Terminal Session in Chapter 4.
Service Mode
Service Mode is used for local upgrading of SA300 firmware and servicing through
the Terminal program. The device enters this mode either upon the explicit user
command sent from the Terminal program when the device is in Program Mode (see
Chapter 4
Using HyperTerminal ), or whenever the device is unintentionally powered
while the PROGRAM-RUN key is left in the PROGRAM position.
When the device enters Service Mode, the CPU LED briefly flashes 2 times with a 1-
second pause.
In Service Mode, all device operations are stopped - the SA300 Flash Loader
captures the COM1 service port and waits for user commands. For more information
on Service Mode, see Technical Note “Upgrading SA300 Device Firmware”. If the
device has entered Service Mode after restart and no user commands are sent, the
Flash Loader exits in one minute, and the device enters Program Mode.
Diagnostics Mode
The device enters Diagnostics Mode when the internal diagnostics detects a critical
error that affects the normal device operation. All device operations are stopped until
the critical error is cleared. All communications ports are still available. See
Device
Diagnostic Codes in Appendix F for the list of diagnostic events that cause a critical
error. See
232H
Device Diagnostics for more information on the SA300 built-in diagnostics.
When the device is in Diagnostics Mode, the CPU LED briefly flashes 3 times with a
1-second pause, and the RDM display shows a diagnostic message.
For more information on indication and clearing the device diagnostics, see
233H
Status
Information Display in Chapter 3,
234H
Viewing and Clearing Device Diagnostics in
Chapter 4, and
235H
Viewing and Clearing Device Diagnostics in Chapter 11.