APP APP-601, Руководство по эксплуатации, Страница: 50 / 146

Hardware 4-13

SOE Record
If a digital point has been setup as sequence of event point, in the Point Assignment Record,
the relay will energize when any SOE/SER point goes abnormal. The relay will remain
energized for the duration set in Alarm Duration field. 10 seconds is default. Most users will
set this contact in a normally open position.

DSP Temperature
If the DSP temperature sensor measures a temperature that exceeds the setting in the Point
Assignment Record, the relay will energize and remain energized until the temperature drops
below the user setting. The user selectable range is 65 to 85° C. The default setting is 70°C.

Continuous Record
If the continuous recording feature has been enabled in the Point Assignment Record, the
relay will energize when the continuous recording begins. Most users will set this contact to
the normally open position. We recommend Continuous Record be mapped to its own output,
no other alarm should be mapped to those outputs.

PC Health
This alarm monitors the hard drive(s) and temperature. This relay will energize if the
temperature of the hard drive exceeds 70° C. A program called speed fan must be installed on
the recorder computer for this alarm to be functional.
APP Recorder monitors Speedfan for active drives, if there are fewer active drives in
Speedfan than the number entered in the “# of HD/SSD field, in the PAR General Settings
Tab, this relay will energize. We recommend PC Health be mapped to its own output, no
other alarm should be mapped to those outputs.

Analog Fail
This alarm monitors each analog channel. The relay will energize if the measured value of the
analog channel goes to maximum negative, indicating a failed channel.
Note:
Even though this alarm is not mapped to an alarm output, if a failed channel is
detected it will be logged to the trace file and diagnostic report (Status File).

Cross Trigger
This Alarm output is to trigger another DFR when a fault is encountered. This starts the
recording in the second DFR, at nearly the same time as the first DFR to create a parallel fault
record for the components monitored in the second DFR. The DFRs need to be connected to a
network via the Ethernet switch and the IP address of the DFR Computers need to be entered
into the Point Assignment Record/Event Channel assigned to receive the cross triggers see
Figure 11 below.
OR the DFRs need to be wired from the alarm output associated with the
cross trigger in the first DFR to a digital event input, configured for Cross Trigger in the
PAR) in the second DFR to receive the Cross Trigger see Figure 12 below.
Note: This Cross Trigger approach is not recommended as it can be less accurate than the
standard APP 601 configuration. The standard APP 601 DFR configuration has one
Computer Unit with multiple Data Chassis in a centralized or distributed configuration.
Cross triggering between the Data Chassis is automatic and time alignment is
accurate (within 1 µs or better).

Configuring and wiring for Cross Trigger using an IP Network
Follow these instructions to set up Cross Triggering between separate DFRs using an IP Network.
1. In the Point Assignment Record of the DFRs, map the Cross Trigger Alarm to an
output contact of your choice (see
Configuring Point Assignment
Record/Configuring General Settings section in the Clearview Operating Manual).