Generac Power Systems Power Zone PZCONSVR Owner's Manual page 27

Protections (Alarms, Event History, GFI, I
See 3-45. The Protections screen is used to set
Figure
custom alarms and warnings or edit existing alarms and
warnings for most of the measured values in the system.
The events can be logged or emailed. This screen is also
used to set up the GFI (Ground Fault Indication)
2
Parameters and the I T (sum of current squared over
time used to estimate thermal affects of current)
protections.
NOTE: Before setting up protection alarms or events, the
Input and Output configurations must be setup for all the
measurement channels.
Normally these channels are setup at the factory. If they
need to be changed, see
Setup Digital I/O for details on this process.
Figure 3-45. Protections
For alarm and event setups the measured values are
read from "channels" where a channel may be a physical
input such as a voltage or digital level, or a computed
value such as kVAR. These protections are further
divided into subsections to make it easier to choose.
Select Alarms Setup to choose from
Alarms, Digital Output Function Alarms
Input Alarms.
NOTE: Alarms and Warnings can be configured to
transmit an email to a list of recipients.
Digital Input Alarms
See 3-46. Follow the procedure below to setup
Figure
Digital Input Alarms.
Select the channel ID to set an alarm on (A). The
1.
function of the channel will be displayed in the
Function box (B).
Enter a "delay to set" time (C). This is the amount
2.
of time the alarm condition must be active before
the alarm is set (resolution of 0.1 seconds).
Enter a "delay to clear" time (D). This is the amount
3.
of time the alarm condition must be inactive before
the alarm is cleared (resolution of 0.1 seconds).
Enter the type of alarm (Warning, Alarm, or
4.
Shutdown) (E).
Choose when the alarm becomes active (Always,
5.
Immediate, or Hold Off delay) (F). Always means
the alarm condition is always being evaluated.
Immediate means the alarm condition is only
evaluated while the generator is rotating. Hold Off
Owner's Manual for Power Zone Connectivity Server
2
T)
Analog I/O and
(E) Setup
Digital Input
or
Analog
means the alarm condition is only evaluated after a
hold off timer has expired after the generator
started running.
Set the trigger level (G) as True or False.
6.
Select "Apply Changes" to save the settings.
7.
A
B
C
D
E
F
G
Figure 3-46. Digital Input Alarms
007547
Digital Output Function Alarms
The setup for these alarms is the same process as for
Digital Input Alarms
Analog Input Alarms
Up to four alarms or warnings can be set on any one
channel. A Sensor Fault type alarm can also be set,
which allows the user to select a range (see
Setup). Follow the procedure below to set an alarm
Fault
or warning.
See
1. Figure
alarm on (A). The function of the channel will be
displayed in the Function box (B).
Enter a hysteresis value (C), if required, in the units
2.
of measure. This value is used to prevent alarms
from rapidly switching on and off as the value
crosses the alarm threshold. As an alarm is
generated the value must change by the hysteresis
value before it clears and can be set again. For
example if we have a warning when temperature
exceeds 205 °F (96 °C) and a hysteresis of 9 °F
(5 °C), then the temperature must drop below 196
°F (91 °C) before the warning clears and can be
set again.
Enter
3.
Shutdown) (D).
Choose when the alarm becomes active (Always,
4.
Immediate, or Hold Off) (E). Always means the
alarm condition is always being evaluated.
Immediate means the alarm condition is only
evaluated while the generator is rotating. Hold Off
means the alarm condition is only evaluated after a
Installation and Operation
but with a different function list.
3-47. Select the channel ID to set an
the alarm type (Warning, Alarm,
007548
Sensor
or
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