G-U RZ 25, Installation And Operating Instructions Manual, Page: 10 / 40

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RWA compact control unit
Installation and operating instructions
RZ 25 | RZ 50 | RZ 75
12.2015 | G31553 | Designed in Germany
3.3 Dimensioning
3.3.1 Current values of RWA compact control units
3.3.2 Current consumption of drives
3.3.3 Rating of output current
Power is supplied by the power supply unit to the connected devices (rain sensor) or bus participant
(IO10, ST10/20) directly via the RZ XX-Master. The current consumption must be taken into account
in this case and reduced accordingly depending on the number of drives connected.
Calculation example:
Requirement: operation of 5 pcs K35 with rain detector
Calculation: 5 pcs K35 drives
Breaking current per K35 drive: 1.2 A
Total current 5 pcs K35 drives: 5 x 1.2 A = 6.0 A
Current consumption of rain detector: 0.25 A
Total current: 6.0 A + 0.25 A = 6.25 A
Selected control unit: RZ 50 (with a max. interrupting current of 6.5 A)
Compact control
unit
Max. output current
Nominal current Breaking current
RZ 25 2,5 A 3,2 A
RZ 50 5 A 6,5 A
RZ 75 7,5 A 8,4 A
Current consumption of drives
Device
Nominal
current Breaking
current
K25 0.8 A 1.0 A
K30 0.9 A 1.2 A
K35 0.95 A 1.2 A
K60 0.8 A 1.2 A
S80 1.0 A 1.4 A
S160 0.7 A 2.5 A
S 24 L 0.7 A 0.9 A
300/24 0.8 A 0.8 A
TA 60 1.4 A 1.4 A
RWA 1000* 0.8 A 1.4 A
RWA 1050** 0.6 A 1.2 A
RWA 1100* 0.8 A 1.4 A
VA25 0.7 A 0.7 A
VA35 0.7 A 0.7 A
VAN 1.5 A 1.5 A
OA 1.1 A 1.1 A
* with S100
** with S60
Maximum number of drives
Drive
Max. number of drives with compact control unit
RZ 25
RZ 50 RZ 75
K25 3 6 8
K30 2 5 7
K35 2 5 7
K60 2 5 7
S80 2 4 6
S160 1 2 3
S 24 L 3 7 9
300/24 4 6 9
TA 60 1 3 5
RWA 1000 2 4 6
RWA 1050 2 5 7
RWA 1100 2 4 6
VA25 4 9 12
VA35 4 9 12
VAN 2 4 5
OA 2 5 7
Device Current consumption
Rain detector 250 mA
IO10 100 mA
ST10/20 25 mA