Siemens HydroRanger 200 Manuál s instrukcemi stáhnout pdf (Strana 55)

7ML19981FC01 HydroRanger 200 – INSTRUCTION MANUAL Page 41

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Discrete Inputs

Wiring the Discrete Inputs

Normal state is standard operation, with the HydroRanger 200 sensing the material level

and controlling the pumps.

The discrete input contacts are either normally-open or normally-closed when the

system state is normal.

Example:

Normal state for a backup high level switch is open, and the contacts on the discrete

input are wired as normally-open.

See

Discrete Inputs

in the

HydroRanger 200 Installation

section on page16 for complete

details on wiring the discrete inputs.

Programming the Discrete Input Logic

The P270 series of parameters permits control over the discrete input.

The current value of the discrete input is reported in P275:

DI State P270 Setting

Normally Open

Normally Closed

P270 = 2

P270 = 3

P275 Setting HydroRanger 200 State

Normal State

Exception State

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 255 256

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Siemens HydroRanger 200 Manuál s instrukcemi Strana 55