SATEC SA300 ezPAC Operation Manual - Manual (Page 10)

Chapter 1 Introduction Controls and Indicators
10 SA300 Substation Automation Unit
• Four isolated AC voltage inputs (up to 690VAC direct line-to-line
input voltage)
• Four standard isolated AC current inputs with an extended input
range up to 3000% overload (10A/IEC or 20A/ANSI input currents, to
150 Amps fault currents)
• A second set of four isolated current inputs (10A/IEC or 20A/ANSI
currents) is available for precise energy metering (order separately)
• DC voltage input (up to 300VDC) for monitoring the station battery
Digital and Analog I/O Options
The SA300 has five I/O expansion slots for removable plug-in I/O modules. The
following I/O options are available:
• 16 DI x 3 – up to three 16-channel digital input modules: 16 optically
isolated inputs per module; options for dry contacts, 10-30V, 20-60V
and 30-100V wet inputs; programmable de-bounce time from 1 ms to
1 sec; free linkage to Sequence-of-Events recorder, Fault recorder,
control setpoints, pulse counters and Energy/TOU subsystem.
• 8 RO x 4 – up to four 8-channel relay output modules: eight relays per
module; unlatched, latched and pulse operations, failsafe operation
for alarm notifications; programmable pulse width; direct remote relay
control through communications.
• 4 AI/4 AO x 4 – up to four combined 4-channel AI/AO modules: four
optically isolated analog inputs and four analog outputs per module
with internal power supply; options for 0-1mA, ±1mA, 0-20mA and
4-20mA inputs and outputs; 100% overload currents for 0-1mA and
±1mA AI/AO (0-2 mA and ±2 mA ranges are available).
• 8 AI x 2 – up to two 8-channel fast AI modules: eight optically isolated
analog inputs per module with internal power supply; options for 0-50
mA, and ±10 V; fast AI waveform sampling at 32 samples/cycle; 1/2
cycle trigger update rate (available with firmware versions 10.06.XX
with reduced AC sampling rate at 64 samples/cycle. The modules
may be used in regular devices without the AI waveform recording
option).
Communications Options
The SA300 has extensive communications capabilities:
• Three independent universal serial communications ports (RS-232,
RS-422/RS-485, up to 115,200 bps, Modbus RTU/ASCII and DNP3.0
protocols)
• Infrared port (Modbus RTU/ASCII and DNP3.0 protocols)
• Embedded 56K modem for communications through public telephone
lines (Modbus RTU/ASCII and DNP3.0 protocols)
• Ethernet 10Base-T port (Modbus/TCP and DNP3.0/TCP protocols,
up to five non-intrusive simultaneous connections, Telnet service
port)
• USB 1.1 port (Modbus RTU protocol, 12 Mbps) for fast local
communications and data retrieving
Remote Displays
The SA300 can be ordered with a LED Remote Display Module (RDM) or an LCD
Remote Graphical Module (RGM). Both have a fast RS-485 port and communicate
with the SA300 via the Modbus RTU protocol. Remote displays can be located at
distances of up to 0.5 km from the device. The RGM can be ordered with an Ethernet
10Base-T port to communicate with the SA300 over a local network.