S225535 ZIEHL | Alldatasheet
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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de Inputs: 8 inputs for current transfor- mers STWA1 or STWA1H (max. 100 A) Not connected inputs discon- nectible Sensitivity adjustable AC 0,3…2,4 A (lower values by leading the monitored line multiple times through the transformer) Autocalibration of inputs Enable-input Function The SolarYes monitors outputs of inverters in PV-systems. Its output-relays (2 potential-free contacts) switch, when there has been no current during the last 24 hours in one of up to 8 monitored lines. Thus the failure of an inverter or a fuse is detected and reported. The operator can initiate repair immediately and saves downtime. The SolarYes is a simple, easily understandable and economical solution, that protects PV-systems from downtimes. The device is mounted in a switch cabinet or a distribution box. The current is measured contactless with simple and solid current transformers, that are mounted over the line at any position, e.g. near the fuses. A subsequent installation in an existent system is possible. Over the course of 24 hours occurring minimal cur- rents (at night there can be wattles currents, caused by interference suppression capacitors in the inverter) are automatically measured and faded out in the eva- luation. The minimum response limit of 0,3 A allows measu- ring of low current-levels. The limit can de reduced by leading the monitored line multiple times through the transformer (Ø 11 mm). In case of false alarms, e.g. with snow on the solar modules, the monitoring interval can be extended to up to 8 days or the alarm can be suppressed with a switch. The 2 output-relays can switch alarm-lamps or elec- troacoustic transducers. The connection of an alarm system or another monitoring unit also is possible. Current-Relay SolarYes Monitoring of Function at Photovoltaic Systems, Detection of Failure at Inverters, 8 inputs Displays and Controls:
8 LEDs for inputs
8 LEDs for alarms
4 LEDs for display of state and programming
2 LEDs for relays
1 LED enable-input
Other features: 2 change-over contacts, nc and no individually programmable Autocalibration for easy startup Power-saving (Eco-Mode), disconnectible Power consumption <0,5 W, <1,2 VA Universal supply-voltage AC/DC 24-240 V Housing for DIN-rail mount, 70 mm, mounting height 55 mm For measuring the current, cur- rent transformers STWA1 and STWA1H are used, one for every monitored line. The STWA1 consist of a climate- proven sealed-in coil with 2 x 1 m cable. SolarYes AC Part number: S225535 Current transformers STWA1 and STWA1H Part numbers: S225201 STWA1 S225506 STWA1H The STWA1H can be fixed on a DIN-rail or mounted with 2 screws. The electrical connection is made via pluggable terminals. A built-in LED lights up at currents > app. 2 A. The inner diameter of both current transformers is 11 mm, the maximum current is 100 A. Current Relays Type SolarYes
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de Current Relays Type SolarYes Technical Data SolarYes Rated Supply Voltage Power Consumption Relay-Output Measuring Inputs Function Test Conditions Rated ambient temperature range Housing Dimensions (w x h x d) Protection housing/terminals Attachment Weight AC/DC 24-240 V, 0/45...65 Hz < 0,5 W, < 1,2 VA
2 Change-over contact (CO)
type 2, see general technical hints 1-8 Current transformers STWA 1 or STWA 1 H Sensitivity adjustable AC 0,3 - 2,4 A ± 30% max. 100 A continously, 300 A / 10 s Monitoring interval adjustable 1-8 days see general technical hints -20°C...+65°C Design V4 70 x 90 x 58 mm, mounting height 55 mm IP 30 / IP 20 DIN-rail 35 mm or screw-mount M4 approx. 180 g