Chromalox CFW, Руководство по эксплуатации оборудования, Страница: 80 / 84

76
FUNCTION (400 to 600A Models)
Options
- Timed Soft-Start firing ramp, with or without peak current control
- Soft-Start firing ramp, specific for infrared lamps
- Timed shut-off ramp
- Limitation of RMS current in load
- 0-90°
Diagnostics
- SCR in short circuit (presence of current with OFF control)
- No linear voltage
- Fan supply power missing
- No current due to open SCR/interrupted load
• Overheat alarm (of power modules, of clamps for power cables, of fuse)
Current reading
• HB Alarm: Interrupted or partially interrupted load
• Calibration procedure using automatic threshold
HB alarm from the value of the load current
• Alarm load short circuit or overload Voltage reading
• Input phase unbalanced
• Wrong phase rotation in three-phase load configuration
Energy Calculations
Total energy value supplied to load with local display by terminal
and remote acquisition from fieldbus. Counters can be reset.
Type of connection and load
selection via dip-switches
- with one Master unit (CFW1):
1 single-phase load
- with one Master units and one Expansion (CFW2):
2 single-phase loads
in ZC and BF trigger mode only:
1 phase load closed delta controlled on two phases
1 phase load star without neutral controlled on two phases
- with one Master unit and two Expansions (CFW3):
3 single-phase loads
3 independent single-phase loads open delta
1 phase load open delta
1 phase load closed delta
1 phase load star with neutral
1 phase load star without neutral
GENERAL DATA (400 to 600A Models)
Power Supply
CFW 1PH-400/500/600A: 24Vdc +/- 10% max 38W
CFW 2PH-400/500/600A: 24Vdc +/- 10% max 66W
CFW 3PH-400/500/600A: 24Vdc +/- 10% max 94W
Fan power supply 24Vdc ±10%, 500mA @ 25Vdc
Signals
Eight leds:
RN (Green) run state of CPU
ER (Red) error signal
DI1, DI2, (Yellow) state of digital inputs INDIG1, INDIG2
O1,O2,O3 (Yellow) state of power control
BT (Yellow) state key HB
Protection IP20
Work/storage temperature 0...+50°C (refer to dissipation curves) / -20...+85°C
Relative humidity 20…85% RH non-condensing
Ambient conditions for use indoor use, altitude up to 2000m
Installation panel with screws
Installation requirements
Installation category II, pollution level 2, double isolation Max. temperature of
air surrounding device 40°C for temperature >40°C refer at derating curves -
Device type: “UL Open Type”