BUSCH COBRA NC 0300 B, Инструкция по эксплуатации

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Input / Output Description | 7
Pump Control Instructions INVEOR VFD R5 COBRA_EN_en 23 | 44
Designation Function
Digital inputs 1 – 4 - Switching level low < 2 V / high > 18 V
- Imax (at 24 V) = 3 mA
- Rin = 8.6 kOhm
Hardware approval for
input.
Enable Hardware (En. HW) - Switching level low < 3 V / high > 18 V
- Imax (at 24 V) = 8 mA
Analogue inputs 1, 2 - In +/- 10 V or 0 … 20 mA
- In 2 … 10 V or 4 … 20 mA
- 10-bit resolution
- Tol/- 2 %
Voltage input:
- Rin = 10 kOhm
Current input:
- Working resistance = 500 Ohm
Digital outputs 1, 2 - Short-circuit proof
- Imax = 20 mA
Relays 1, 2 1 changeover contact (NO/NC)
Maximum switching power *
- at ohmic load (cos ϕ = 1): 5 A at ~ 230 V or = 30 V
- at inductive load (cos ϕ = 0.4 and L/R = 7 ms): 2 A at ~ 230 V or = 30 V
Maximum reaction time: 7 ms ± 0.5 ms
Electric life: 100 000 switching cycles
Analogue output 1
(current) - Short-circuit proof
- I out = 0 … 20 mA
- Working resistance = 500 Ohm
- Tol/- 2 %
Analogue output 1
(voltage) - Short-circuit proof
- U out = 0 … 10 V
- Imax = 10 mA
- Tol/- 2 %
Power supply 24 V out - Auxiliary voltage U = 24 VDC
- SELV
- Short-circuit proof
- Imax = 100 mA
- external feeding of 24 V possible
Power supply 10 V out - Auxiliary voltage U = 10 VDC
- Short-circuit proof
- Imax = 30 mA
* in terms of the UL 508C standard, the maximum allowed is 2 A!