DSQC227工控继电模块PLC库存
¥6973.00
DSQC228工控继电模块
¥6973.00
DSQC229工控继电模块PLC库存
¥6973.00
DSQC230工控继电模块PLC库存
¥6973.00
DSQC233工控继电模块PLC库存
¥6973.00
DSQC235A工控继电模块PLC库存
¥6973.00
产品类别：模块卡件
品牌：DCS、PLC
电话：15270269218
联系人：叶经理
质保期：1年
加工定制：不可定制
产地/厂家：美国
功率计提供了许多功率分析值，这些值：
可用于检测电能质量问题，诊断接线
问题等等。第59页的表4-6总结了功率
分析值。
•THD。总谐波失真（THD）是一种快速测量
波形中存在的总失真，是谐波的比率
满足于基础。它提供了以下方面的一般指示：
波形的“质量”。THD是针对电压和
现在的功率计使用以下公式计算：
THD，其中H为谐波失真：
•thd。计算总谐波的另一种方法
失真，在欧洲广泛使用。它考虑了总谐波
当前和总rms含量，而非基本含量
在计算中。功率表计算两种电压的thd
和电流。功率计使用以下等式：
计算thd，其中H为谐波失真：
•位移功率因数。功率因数（PF）表示
进入负载的电压和电流超出
阶段位移功率因数基于
电流和电压的基本成分。
•谐波值。谐波会降低
电力系统。功率表确定个人
每相谐波幅值和角度通过：
-31次谐波（PM820）或
-第63次谐波（PM850、PM870）
对于所有电流和电压。谐波幅值可以是：
格式为基本值的***比（默认值），或
rms值的***比或实际rms值。提到
H++2
2.
H3
2.
H4
2 +
THD=x ***
H1
H++
2.
2小时
3.
2小时
4.
2.
总rms
+
thd=x ***
©2006施耐德电气。版权所有。
63230-500-22***1 PowerLogic®800系列功率表
6/2006第4章——计量能力
59
第218页“设置单个谐波计算”，用于
有关如何配置谐波计算的信息。
表4-6：功率分析值
可报告范围的值
THD电压、电流
三相，每相，中性0至3276.7%
thd电压、电流
三相，每相，中性0至3276.7%
基波电压（每相）
巨大
角
0至1200千伏
0.0至359.9°
基波电流（每相）
巨大
角
0至32767 A
0.0至359.9°
混杂的
位移P.F.（每相，三相）–0.002至1.000至+0.002
相位旋转ABC或CBA
不平衡（电流和电压）➀ 0.0至100.0%
单个电流和电压谐波幅值➁ 0至327.67%
单个电流和电压谐波角➁ 0.0°至359.9°
➀ 只能通过通信获取读数。
➁ 电流和电压谐波幅值和角度2、3、4、5、6、7、8、9、10、11和13显示在
陈列
©2006施耐德电气。版权所有。
PowerLogic®800系列功率表63230-500-22***1
第4章-计量能力6/2006
60
©2006施耐德电气。版权所有。
63230-500-22***1 PowerLogic®800系列功率表
6/2006第5章-输入/输出能力
61
第5章-输入/输出能力
数字输入
功率计包括一个固态数字输入。数字输入
用于检测数字信号。例如，数字输入可以是
用于确定断路器状态、计数脉冲或计数电机
开始。数字输入还可以与外部继电器相关联。
您可以将数字输入转换记录为功率表中的事件
车载报警日志。事件带有日期和时间戳
***个决议。功率计从“关”计数到“开”
每个输入的转换。您可以使用查看每个输入的计数
数字输入屏幕，您可以使用
命令界面。图5-1是数字输入的示例
屏幕
图5-1：数字输入屏幕
A、 点亮的条形图表示输入为：
对于模拟输入或输出
条形图指示输出
***率
B、 S1是所有仪表共用的，并且
表示标准数字输入。
C、 A-S1和A-S2表示输入/输出点
***（A）模块上的数字。
D、 使用箭头按钮滚动浏览
其余的I/O点。点数
以“B”开头的是***个
单元参见第211页的表B-3
I/O点编号的完整列表。
. -
"
&
=
D
B
A.
C
PLSD110233
©2006施耐德电气。版权所有。
PowerLogic®800系列功率表63230-500-22***1
第5章-输入/输出能力6/2006
62
数字输入有三种操作模式：
•正常使用正常模式进行简单的开/关数字输入。在里面
正常模式下，数字输入可用于对KY脉冲进行计数
需求和能量计算。
•需求间隔同步脉冲：您可以配置任何数字
从公用事业需求表接收需求同步脉冲的输入
（参见本章第63页的“需求同步脉冲输入”
关于该主题的更多信息）。对于每个需求配置文件，您可以
判定元件
he power meter provides a number of power analysis values that
can be used to detect power quality problems, diagnose wiring
problems, and more. Table 4–6 on page 59 summarizes the power
analysis values.
• THD. Total Harmonic Distortion (THD) is a quick measure of the
total distortion present in a waveform and is the ratio of harmonic
content to the fundamental. It provides a general indication of the
“quality” of a waveform. THD is calculated for both voltage and
current. The power meter uses the following equation to calculate
THD where H is the harmonic distortion:
• thd. An alternate method for calculating Total Harmonic
Distortion, used widely in Europe. It considers the total harmonic
current and the total rms content rather than fundamental content
in the calculation. The power meter calculates thd for both voltage
and current. The power meter uses the following equation to
calculate thd where H is the harmonic distortion:
• Displacement Power Factor. Power factor (PF) represents the
degree to which voltage and current coming into a load are out of
phase. Displacement power factor is based on the angle between
the fundamental components of current and voltage.
• Harmonic Values. Harmonics can reduce the capacity of the
power system. The power meter determines the individual
per-phase harmonic magnitudes and angles through the:
— 31st harmonic (PM820) or
— 63rd harmonic (PM850, PM870)
for all currents and voltages. The harmonic magnitudes can be
formatted as either a percentage of the fundamental (default), a
percentage of the rms value, or the actual rms value. Refer to
H + + 2
2
H3
2
H4
2 +
THD = x ***
H1
H + +
2
2 H
3
2 H
4
2
Total rms
+
thd = x ***
© 2006 Schneider Electric. All Rights Reserved.
63230-500-22***1 PowerLogic® Series 800 Power Meter
6/2006 Chapter 4—Metering Capabilities
59
“Setting Up Individual Harmonic Calculations” on page 218 for
information on how to configure harmonic calculations.
Table 4–6: Power Analysis Values
Value Reportable Range
THD—Voltage, Current
3-phase, per-phase, neutral 0 to 3,276.7%
thd—Voltage, Current
3-phase, per-phase, neutral 0 to 3,276.7%
Fundamental Voltages (per phase)
Magnitude
Angle
0 to 1,200 kV
0.0 to 359.9°
Fundamental Currents (per phase)
Magnitude
Angle
0 to 32,767 A
0.0 to 359.9°
Miscellaneous
Displacement P.F. (per phase, 3-phase) –0.002 to 1.000 to +0.002
Phase Rotation ABC or CBA
Unbalance (current and voltage) ➀ 0.0 to 100.0%
Individual Current and Voltage Harmonic Magnitudes ➁ 0 to 327.67%
Individual Current and Voltage Harmonic Angles ➁ 0.0° to 359.9°
➀ Readings are obtained only through communications.
➁ Current and Voltage Harmonic Magnitude and Angles 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 13 are shown on the
display.
© 2006 Schneider Electric. All Rights Reserved.
PowerLogic® Series 800 Power Meter 63230-500-22***1
Chapter 4—Metering Capabilities 6/2006
60
© 2006 Schneider Electric. All Rights Reserved.
63230-500-22***1 PowerLogic® Series 800 Power Meter
6/2006 Chapter 5—Input/Output Capabilities
61
CHAPTER 5—INPUT/OUTPUT CAPABILITIES
Digital Inputs
The power meter includes one solid-state digital input. A digital input
is used to detect digital signals. For example, the digital input can be
used to determine circuit breaker status, count pulses, or count motor
starts. The digital input can also be associated with an external relay.
You can log digital input transitions as events in the power meter’s
on-board alarm log. The event is date and time stamped with
resolution to the second. The power meter counts OFF-to-ON
transitions for each input. You can view the count for each input using
the Digital Inputs screen, and you can reset this value using the
command interface. Figure 5–1 is an example of the Digital Inputs
screen.
Figure 5–1: Digital Inputs Screen
A. Lit bargraph indicates that the input is
ON. For analog inputs or outputs, the
bargraph indicates the output
percentage.
B. S1 is common to all meters and
represents standard digital input.
C. A-S1 and A-S2 represent I/O point
numbers on the first (A) module.
D. Use the arrow buttons to scroll through
the remaining I/O points. Point numbers
beginning with “B” are on the second
module. See Table B–3 on page 211 for
a complete list of I/O point numbers.
. -
"
&
=
D
B
A
C
PLSD110233
© 2006 Schneider Electric. All Rights Reserved.
PowerLogic® Series 800 Power Meter 63230-500-22***1
Chapter 5—Input/Output Capabilities 6/2006
62
The digital input has three operating modes:
• Normal—Use the normal mode for simple on/off digital inputs. In
normal mode, digital inputs can be used to count KY pulses for
demand and energy calculation.
• Demand Interval Synch Pulse—you can configure any digital
input to accept a demand synch pulse from a utility demand meter
(see “Demand Synch Pulse Input” on page 63 of this chapter for
more about this topic). For each demand profile, you can
designate only one input as a demand synch input.
• Conditional Energy Control—you can configure one digital input
to control conditional energy (see “Energy Readings” on page 53
in Chapter 4—Metering Capabilities for more about conditional
energy).
NOTE: By default, the digital input is named DIG IN S02 and is set up
for normal mode.
For custom setup, use SMS to define the name and operating mode
of the digital input. The name is a 16-character label that identifies the
digital input. The operating mode is one of those listed above. See
the SMS online help for instructions on device set up of the power
meter.
© 2006 Schneider Electric. All Rights Reserved.
63230-500-22***1 PowerLogic® Series 800 Power Meter
6/2006 Chapter 5—Input/Output Capabilities
63
Demand Synch Pulse Input
You can configure the power meter to accept a demand synch pulse
from an external source such as another demand meter. By
accepting demand synch pulses through a digital input, the power
meter can make its demand interval “window” match the other
meter’s demand interval “window.” The power meter does this by
“watching” the digital input for a pulse from the other demand meter.
When it sees a pulse, it starts a new demand interval and calculates
the demand for the preceding interval. The power meter then uses
the same time interval as the other meter for each demand
calculation. Figure 5–2 illustrates this point. See “Synchronized
Demand” on page 47 in Chapter 4—Metering Capabilities for more
about demand calculations.
When in demand synch pulse operating mode, the power meter will
not start or stop a demand interval without a pulse. The maximum
allowable time between pulses is 60 minutes. If 66 minutes (110% of
the demand interval) pass before a synch pulse is received, the
power meter throws out the demand calculations and begins a new
calculation when the next pulse is received. Once in synch with the
billing meter, the power meter can be used to verify peak demand
charges.
Important facts about the power meter’s demand synch feature are
listed below:
• Any installed digital input can be set to accept a demand synch
pulse.
• Each system can choose whether to use an external synch pulse,
but only one demand synch pulse can be brought into the meter
for each demand system. One input can be used to synchronize
any combination of the demand systems.
• The demand synch feature can be set up from SMS. See the SMS
online help for instructions on device set up of the power meter.
© 2006 Schneider Electric. All Rights Reserved.
PowerLogic® Series 800 Power Meter 63230-500-22***1
Chapter 5—Input/Output Capabilities 6/2006
64
Relay Output Operating Modes
The relay output defaults to external control, but you can choose
whether the relay is set to external or internal control:
• Remote (external) control—the relay is controlled either from a
PC using SMS or a programmable logic controller using
commands via communications.
• Power meter (internal) control—the relay is controlled by the
power meter in response to a set-point controlled alarm condition,
or as a pulse initiator output. Once you’ve set up a relay for power
meter control, you can no longer operate the relay remotely.
However, you can temporarily override the relay, using SMS.
NOTE: If any basic setup parameters or I/O setup parameters are
modified, all relay outputs will be de-energized.
The 11 relay operating modes are as follows:
• Normal
— Remotely Controlled: Energize the relay by issuing a
command from a remote PC or programmable controller. The
relay remains energized until a command to de-energize is
issued from the remote PC or programmable controller, or until
the power meter loses control power. When control power is
restored, the relay is not automatically re-energized.
— Power Meter Controlled: When an alarm condition assigned
to the relay occurs, the relay is energized. The relay is not deenergized until all alarm conditions assigned to the relay have
dropped out, the power meter loses control power, or the
Figure 5–2: Demand synch pulse timing PLSD110140
Normal Demand Mode External Synch Pulse Demand Timing
Billing Meter
Demand Timing
Power Meter
Demand Timing
Billing Meter
Demand Timing
Power Meter
Demand Timing
(Slave to Master)
Utility Meter
Synch Pulse
© 2006 Schneider Electric. All Rights Reserved.
63230-500-22***1 PowerLogic® Series 800 Power Meter
6/2006 Chapter 5—Input/Output Capabilities
65
alarms are over-ridden using SMS software. If the alarm
condition is still true when the power meter regains control
power, the relay will be re-energized.
• Latched
— Remotely Controlled: Energize the relay by issuing a
command from a remote PC or programmable controller. The
relay remains energized until a command to de-energize is
issued from a remote PC or programmable controller, or until
the power meter loses control power. When control power is
restored, the relay will not be re-energized.
— Power Meter Controlled: When an alarm condition assigned
to the relay occurs, the relay is energized. The relay remains
energized—even after all alarm conditions assigned to the
relay have dropped out—until a command to de-energize is
issued from a remote PC or programmable controller, until the
high priority alarm log is cleared from the display, or until the
power meter loses control power. When control power is
restored, the relay will not be re-energized if the alarm
condition is not TRUE.
• Timed
— Remotely Controlled: Energize the relay by issuing a
command from a remote PC or programmable controller. The
relay remains energized until the timer expires, or until the
power meter loses control power. If a new command to
energize the relay is issued before the timer expires, the timer
restarts. If the power meter loses control power, the relay will
not be re-energized when control power is restored and the
timer will reset to zero and begin timing again.
— Power Meter Controlled: When an alarm condition assigned
to the relay occurs, the relay is energized. The relay remains
energized for the duration of the timer. When the timer
expires, the relay will de-energize and remain de-energized. If
the relay is on and the power meter loses control power, the
relay will not be re-energized when control power is restored
and the timer will reset to zero and begin timing again.
• End Of Power Demand Interval
This mode assigns the relay to operate as a synch pulse to
another device. The output operates in timed mode using the
timer setting and turns on at the end of a power demand interval.
It turns off when the timer expires.
© 2006 Schneider Electric. All Rights Reserved.
PowerLogic® Series 800 Power Meter 63230-500-22***1
Chapter 5—Input/Output Capabilities 6/2006
66
• Absolute kWh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kWh per pulse. In this mode, both forward
and reverse real energy are treated as additive (as in a tie circuit
breaker).
• Absolute kVARh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVARh per pulse. In this mode, both
forward and reverse reactive energy are treated as additive (as in
a tie circuit breaker).
• kVAh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVAh per pulse. Since kVA has no sign,
the kVAh pulse has only one mode.
• kWh In Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kWh per pulse. In this mode, only the
kWh flowing into the load is considered.
• kVARh In Pulse
This mode assigns the relay to
在线问
