3-State Function; 3-State Target - Omron KM1 User Manual

0BChapter 3 Functions
3.5 3.5

3-STATE function

3-STATE function

PMU1A PMU1A PMU2A PMU2A
(Electric (Electric (Power (Power
power) power) two-system) two-system)
• Classifies integrated power amount and integrated time into the three types.
• One of the present measurement values (power, voltage, current, and event input) outputs its
condition signal according to the specified threshold.
* Output requires the output terminal to be set to HIGH, MIDDLE, or LOW.
• When measurement and saving operations are done, a value more than or equal to HIGH
threshold is specified to be "HIGH integrated power amount," less than LOW threshold, "LOW
integrated power amount," and others, "MIDDLE condition integrated power amount."
• When using the 3-STATE function, set the measurement start time/measurement end time.
(Refer to Page 3-17.)

3-STATE target

• Targets for judgment of 3-STATE output function can be selected from one of the following.
• Judgment method for each target
1) Electric power (active) (unit of 1 W)
Using active power as a target for judgment, integrate power amount according to the
HIGH/LOW threshold.
2) Current, voltage (unit of 0.1 A, 0.1 V)
Using the directly measured current/voltage line (*1) as a target for judgment, integrate
power amount according to the HIGH/LOW threshold.
*1. The targets for judgment are shown below.
The HIGH condition judgment implements the OR operation (either value
exceeds the threshold), while the LOW condition judgment implements the AND
operation (both values are lower than the threshold).
3) Event input
If event inputs are used as the discrimination of 3-STATE , one of the following
combinations is used: event input 1 and event input 2, event input 3 and event input 4,
and event input 5 and event input 6. For the judgment criteria, refer to the table below.
Event input 1
イベント入力 1
Event input 2
ベント入力 2
イ
Operation judgment of Model KM1
形 KM1 動作判定
* If event inputs are used as the discrimination of 3-STATE, EMU8A (pulse/temperature) must
be connected to PMU1A (electric power) or PMU2A (power two-system). In this case, set the
slave ID of EMU8A (pulse/temperature) to 5. If electric power, current, and voltage are used
for judgment, only PMU1A (electric power) and PMU2A (power two-system) are available.
* Hysteresis can be set for HIGH threshold and LOW threshold. Set within the range of 0 to
24000000.
* When defining HIGH = equipment operation condition, MIDDLE = equipment wait condition,
and LOW equipment stop condition, 3-STATE has operation examples as shown below.
* For single-phase 2 wire, PMU1A (electric power) and PMU2A (power two-system) can
output only the CT1 condition, and the CT1 and CT3 conditions, respectively.
3-18
EMU8A EMU8A CTD8E CTD8E
(Pulse/temperature) (Pulse/temperature) (CT (CT
expansion) expansion)
×
Target for current
Phase wire
judgment
Single-phase 2-wire
Single-phase 3-wire V r n 、 V t n
3-phase 3-wire V r s 、 V s t
3-phase 4-wire V r n 、 V s n 、 V t n
Event input 1 Event input 2
0
0
1
1
0: Without input, 1: With input
M IDDLE LOW MIDDLE
: With settings of two-system
×
connected to PMU□A : Without setting
Target for voltage
judgment
V l n I
I r 、 I t
I r 、 I t
I r 、 I s 、 I t
Judgment
0 LOW
1 LOW
0 MIDDLE
1 HIGH
MIDDLE HIGH
HIGH
: With setting : When
LOW