VBus^®-Accessories

STA-W (kWh output module)

The kWh output module is an interface designed for the exchange of heat quantity measurement values between RESOL devices and external appliances. It can be connected to a RESOL controller or a calorimeter via the RESOL VBus^®. Whenever the heat quantity increases by 1 kWh, the module operates a potential-free contact which is connected to the central building control system. The total number of operated contacts can be visualised as heat quantity by the software of the central building control system.

Technical data
Outputs: 1 potential-free relay (max. 24VDC, 1 A, 15 W)
Power supply: RESOL VBus^®
Data interface: RESOL VBus^®
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting
Indication / Display: 1 LED
Ingress protection: IP 20, with insulation IP 22 (DIN 40050)
Ambient temperature: 0 ... 40 °C
Dimensions: Ø 130 mm, depth 45 mm
Max. frequency: 5 Hz

The RESOL STA-W is designed for the connection to the DeltaSol® BS, BS Plus, DB, E, ES, M, Minipool and Pool controllers as well as to the pump station FlowCon D.

The number of VBus^® accessories that can be connected to one controller depends on the sum of their current consumption and on the current supply of the controller VBus^®.
Device	Maximum current consumption
VBus^® / PWM interface adapter	6,5 mA
VBus^® / USB interface adapter	6,5 mA
VBus^® / LAN interface adapter	6,5 mA
Datalogger DL2	1,5 mA
Smart Display SD3	17,5 mA
GA3 Large Display	1 mA
AM1 alarm module	16,5 mA
HKM3	1 mA
EM	1 mA