WATTrouter ECO - user manual
www.solarcontrols.cz
How to fit and setup the device
Page 64 from 66
TECHNICAL SPECIFICATIONS
Parameter
Value, notes
Main parameters
Supply voltage
230 V
, 50 Hz
Power consumption – stand-by mode
<3 VA
Power consumption – 1 relay output
0.4 W
Power consumption – all outputs switched on and
loaded with maximum allowable currents
4 W (
this value does not include the switching losses
of power SSRs
)
Current measuring range
0-20 A
(±5 %), 50 Hz (±5 %)
Voltage range
230V
(±5%), 50Hz (±5%)
Maximum steady currents allowed to flow through
current sensing module
0-40 A
(±5 %), 50 Hz (±5 %)
Active power measuring accuracy
5% ± 0,05kW
Output and input parameters
L1 input
230 V
, 50 Hz
I_L1, I_L2, I_L3 inputs:
Secondary currents from measuring coils. Maximum
allowed voltage against GND terminal is 5.5 V.
Relay outputs
230 V
, 50 Hz, max. 10 A, 2300 W (it is
recommended to connect load with cos(Φ) ≠ 1 via
external contactor)
Protection: Regular circuit breaker, type B
External outputs for connection of solid state relays
SSR (S+, S1-, S2-,S3-,S4-)
0 or 5 VDC, isolated from power grid supply
SSR parameters: control DC min. 4VDC, SSR must
switch at zero (zero switch).
Protection: based on instructions specified in the SSR
relay manual
External outputs - connection with PWM function
SSR (S+, S1-, S2-,S3-,S4-)
0 or 5 VDC, isolated from power grid supply
PWM parameters: carrier frequency 200 Hz, duty
cycle 0-100% in 1% steps.
Protection: based on instructions specified in the
manual of connected device
LT, FB inputs
0 or 5 VDC, isolated from power grid supply
May be switched using regular relay outputs or
optocouplers with open collector, always against
GND.
Minimum pulse width and gaps for FB inputs is 1ms.
USB Connection
USB 1.1/ USB 2.0, isolated both from power grid
supply and additionally optically isolated
Dynamic characteristics
Active power measuring period (effective values)
typically 600 ms (including averaging of switched-on
SSRs)
Regulation dynamics (full scale) at SSR output
typically 3 s (from 0 to 100 % of power output and
vice versa)
Relay output on-delay time
Programmable (minimum of 2s)
