Current-Relay SolarYes
Monitoring of Function at Photovoltaic Systems, Detection of Failure at Inverters, 8 inputs
Product description
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-systemsfrom 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 currents (at night there can be wattles currents, caused by interference suppression capacitors in the inverter) are automatically measured and faded out in the evaluation.
The minimum response limit of 0,3 A allows measuring 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 electroacoustic transducers. The connection of an alarm system or another monitoring unit also is possible.
Inputs
- 8 inputs for current transformers STWA1 or STWA1H (max. 100 A)
- Not connected inputs disconnectible
- 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
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
- 3 pushbuttons
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
- Accessory: Front mounting kit type ER4
Technical Data SolarYes
Rated Supply Voltage
AC/DC 24-240 V, 0/45...65 Hz
DC: 20,4...297 V, AC: 20,4...264 V
Power Consumption
0,5 W, < 1,2 VA
Relay-Output
2 Change-over contact (CO)
type 2, see general technical hints
Measuring Inputs
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
Function
Monitoring interval adjustable 1-8 days
Test Conditions
see general technical hints
Rated ambient temperature range
-20°C...+65°C
Housing
Design / Installation Frame
Design V4 / Front mounting kit ER4, 4 TE
Dimensions (w x h x d)
70 x 90 x 58 mm, mounting height 55 mm
Protection housing/terminals
IP 30 / IP 20
Attachment
DIN-rail 35 mm or screw-mount M4
Weight
approx. 180 g
CAD Data
Certificates
FAQ / Product videos