Mitsubishi Electric FR-A700 Series, Техническое руководство, Страница: 317 / 550

351
PARAMETER
2
P
ARAM
ETE
R
(4) Cumulative power monitor and clear [Pr.
52 = 25, Pr. 170, 891*] (*[
Pr. 891
] is not
available for .)
On the cumulative energization power monitor ([ Pr. 52
= 25]), the output power monitor value is added up
and is updated in 1h increments.
The operation panel (FR-PU07), parameter unit (FR-
PU04/FR-PU07) and communication (RS-485
communication, communication option) display
increments and display ranges are as indicated
below.
*1 Power is measured in the range 0 to 9999.99kWh, and
displayed in 4 digits. When the monitor value exceeds
99.99, a carry occurs, e.g. 100.0, so the value is
displayed in 0.1kWh increments.
*2 Power is measured in the range 0 to 99999.99.99kWh,
and displayed in 5 digits. When the monitor value
exceeds 999.99, a carry occurs, e.g. 1000.0, so the
value is displayed in 0.1kWh increments.
The digits of the cumulative power monitor value can
be shifted to the right for the number of [
Pr. 891 ]
setting values. For example, if the cumulative power
value is 1278.56kWh when [
Pr. 891 = 2], the PU/DU
display is 12.78 (displayed in 100kWh increments)
and the communication data is 12.
If the maximum value exceeded at [
Pr. 891 = 0 to 4],
the power is clamped at the maximum value,
indicating that a digit shift is necessary.
When [
Pr. 891 = 9999], the value returns to 0 if it
exceeds the maximum value, then counting restarts.
Writing [
Pr. 170 = 0] clears the cumulative power
monitor. If [ Pr. 170 = 0] is written and [ Pr. 170 ] is read
again, 9999 or 10 is always displayed.
(5) Cumulative energization time and actual
operation time monitor
[Pr. 52 = 20, 23, Pr. 171, 563, 564]
Cumulative energization time monitor ([ Pr. 52 = 20])
accumulates energization time from shipment of the
inverter every one hour.
On the actual operation time monitor ([
Pr. 52 = 23]),
the inverter running time is added up every hour.
(The actual operation time does not add up if inverter
operates for less than one hour.)
If the monitor value exceeds 65535, it is added up
from 0. The numbers of cumulative energization time
monitor exceeded 65535h can be checked with [
Pr.
563
] and the numbers of actual operation time
monitor exceeded 65535h with [ Pr. 564 ].
Writing [ Pr. 171 = 0] will clear the actual operation
time monitor. (The cumulative energization time
monitor can not be cleared.) If [
Pr. 171 = 0] is written
and [ Pr. 171 ] is read again, "9999" is always
displayed. Setting 9999 does not clear the actual
operation time meter.
(6) Monitor decimal digits selection [Pr. 268]
As the operation panel (FR-DU07) display is 4 digits
long, the decimal places may vary at analog input,
etc. The decimal places can be hidden by selecting
the decimal digits. In such a case, the decimal digits
can be selected by [
Pr. 268
] .
The number of display digits on the cumulative time
([
Pr. 52 = 20]), actual operation time ([ Pr. 52 = 23]),
cumulative energization power ([ Pr. 52 = 25]) or
cumulative saving power monitor ([
Pr. 52
= 51]) does
not change.
Operation Panel
*1
Range Increments
0 to 99.99kWh 0.01kWh
100.0 to 999.9kWh 0.1kWh
1000 to 9999kWh 1kWh
Parameter Unit
*2
Range Increments
0 to 999.99kWh 0.01kWh
1000.0 to 9999.9kWh 0.1kWh
10000 to 99999kWh 1kWh
Communication
Range
Increments
[Pr. 170 = 10] [Pr. 170 = 9999]
0 to 9999kWh
0 to 65535kWh
(initial value)
1kWh
E700
[Pr. 268]
Setting
Description
9999
(initial
value)
No function
0
For the first or second decimal places (0.1
increments or 0.01 increments) of the monitor,
numbers in the first decimal place and smaller
are rounded to display an integral value (1
increments). The monitor value of 0.99 or less
is displayed as 0.
1
When 2 decimal places (0.01 increments) are
monitored, the 0.01 decimal place is dropped and
the monitor displays the first decimal place (0.1
increments). The monitored digits in 1 increments
are displayed.