Schneider Electric HRB1684301-01 Manual De Usuario

72

HRB1684301-01

Chapter 8—Input / Output

PowerLogic™ PM5500 series user manual

7. Move the cursor to point to the next parameter you want to modify, press Edit, 

make your changes, then press OK.

8. Press   to exit. Press Yes to save your changes.

•

See “Synchronized demand” on page 112 for information on using an external 
source to synchronize meter demand periods.

•

See “Input metering setup” on page 73 for details on associating a digital input for 
input metering applications.

Your meter’s digital inputs can be used to count pulses from transducers and convert 
the pulses to energy measurements. 

Your meter’s input metering channels count pulses received from the digital inputs 
assigned to that channel. The incoming pulses are used in calculating and measuring 
consumption data (e.g., BTU, kWh, L, kg). Each channel must have the following 
values configured to match the pulse data:

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Pulse Weight: the pulses per unit value.

•

Unit Code: the unit of measure associated with the monitored value.

•

Demand Code: for time-based values (such as kWh), this provides the associated 
demand units (kW) for demand calculations; for other values (such as kg), this can 
be configured to provide rate information (kg/h or kg/s).

•

Mode: Whether pulse counting based on full pulses or transitions.

For example, if each complete pulse represents 125 Wh, you can configure for Wh 
pulsing as follows:

•

Pulse Weight = pulses/Wh = 1/125 = 0.008

•

Unit Code = Wh

•

Demand Code = kW (this is automatically set)

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Mode = pulse

Label

—

This can be modified only through software. Use this 
field to assign names to the digital inputs (S1 to S4).

Debounce Time 
(ms)

0 to 1000

Debounce is the time delay that compensates for 
mechanical contact bounce. Use this field to set how 
long (in milliseconds) the external signal must remain in 
a certain state to be considered a valid state change. 
Allowable values are increments of 10 (i.e., 10, 20, 30, 
etc., up to 1000 ms).

Control Mode

Normal, Demand Sync, Input 
Metering, Multi-Tariff

This field displays how the digital input functions.
•

Normal: the digital input is either associated with a 
digital input alarm, or it is not associated with 
another meter function. The meter counts and 
records the number of incoming pulses normally.

•

Demand Sync: the digital input is associated with 
one of the input sync demand functions. The meter 
uses the incoming pulse to synchronize its demand 
period with the external source.

•

Input Metering: the digital input is associated with 
one of the input metering channels. The meter 
counts and records the number of incoming pulses 
and related consumption data associated with the 
pulses.

•

Multi-Tariff: the digital input is associated with the 
multi-tariff function. See “Input mode overview” on 
page 105.