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Application/inputs and outputs
53
PEM735_D00084_00_M_XXEN/02.2015
7. Application/inputs and outputs
7.1 Digital inputs (DI)
The device features six digital inputs which are internally operated with DC 24 V.
Digital inputs are typically used for
monitoring external statuses
. The real-time
statuses of the digital inputs are available on the front panel LC display as well as
through connected system components. Changes in external statuses are stored as
events in the SOE log in 1 ms resolution.
One of the digital inputs can be programmed to
receive pulses for the synchro-
nisation of the demand measurement
. The setting is to be carried out via register
6021 (page 128).
Digital inputs can also be used as
external time synchronisation pulse
(see
page 86).
7.2 Digital outputs (DO)
The device features three digital outputs.
Digital outputs
are typically used for
set-
point alarming
,
load control
or
remote control applications
.
Examples:
1. Manually operated from the front panel (Chapter 6.8 Setup configuration via
2. Operation via communications interface (Chapter 10.19 DOx output control).
3. Control setpoints: Control actions in response to a specific condition
4. Digital outputs triggered by logic modules
5. Triggered by undervoltage or overvoltage
(Chapter 9.4 Undervoltage/overvoltage setpoint (sag/swell setpoint)).
6. Triggered by transient events
(Chapter 9.5 Transient events setpoint).
7. Control via digital inputs
Priority
: Front panel control has a higher priority and overwrites the other applica-
tions.
For a general alarm, all setpoints can be programmed to control the same digital
output. However, if the user intends to generate a control signal in response to a
specific setpoint condition, each DO may be controlled by only one source.
Содержание LINETRAXX PEM575 Series
Страница 8: ......
Страница 12: ...Making effective use of this document 12 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 28: ...Installation and connection 28 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 62: ...Application inputs and outputs 62 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 82: ...Logging 82 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 88: ...Power Quality 88 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 162: ...Modbus Register Map 162 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 166: ...Technical data 166 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 170: ...INDEX 170 PEM575_D00016_00_M_XXEN 04 2015 ...
Страница 171: ......