Overview DC Asterion Series
1-8 M330460-01 Rev A
Serial interface compliant to RS-232C;
Protocol: data bits, 7 with parity and 8 without parity; stop bits, 2; baud rate, 9600 to 115200;
handshake, CTS and RTS;
Connector: Subminiature-D, 9-contact receptacle.
Parallel interface complies with IEEE-488.1, IEEE-488.2, and the SCPI command
specification;
command execution response time, 10 ms, typical;
connector: IEEE-488.1 compliant.
Firmware can be upgraded through the LAN interface.
1.2.10 Protection Function Characteristics
Output Overvoltage Protection (OVP)
Programmable to 110% of full-scale output voltage;
exceeding OVP threshold results in shutdown of output.
Output Current Limit Protection
User-selectable fold back mode CV/CC/CP or CV or CC or CP models.
In CV/CC/CP mode, output current or power is regulated to setpoint
on reaching limit.
In CV mode, on reaching current or power limits results in shutdown of
output;
In CC mode, on reaching voltage or power limits results in shutdown
of output;
In CP mode, on reaching voltage or current limits results in shutdown
of output;
In CV or CC or CP mode, shutdown delay on reaching the limit is
programmable from 100 ms to 5 s.
AC Input Overcurrent Protection
Internal fuses in each phase for fault isolation; not user replaceable
AC Input Undervoltage Protection
Automatic shutdown for insufficient AC input voltage
AC Input Transient Protection
Protection to withstand EN61326-1, Class-A surge levels
Overtemperature Protection (OTP)
Internal temperature monitors cause shutdown of output if temperature
thresholds are exceeded
1.2.11 Environmental Specifications
0°C to 50°C (32° F to 104° F), 100% load
-30°C to 85°C ( -22°F to 185° F)
3000 m (10,000 ft), output current derating 2%/100m or T
ambient
1⁰C/100m above 2000m
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