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參數(shù)資料
| 型號： | PWB02CM4810A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Monitoring Relays 3-Phase Active power |
| 中文描述： | 監(jiān)測繼電器三相有功 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 192K |
| 代理商： | PWB02CM4810A |
2
Specifications are subject to change without notice (09.12.05)
DWB02, PWB02
Supply Specifications
General Specifications
Power supply
Rated operational voltage
Through terminals:
Overvoltage cat. III
(IEC 60664, IEC 60038)
DWB02:
PWB02:
M23
L1, L2, L3
5, 6, 7
177 to 276 VAC 45 to 65 Hz
323 to 552 VAC 45 to 65 Hz
323 to 477 VAC 45 to 65 Hz
510 to 793 VAC 45 to 65 Hz
DWB02CM48
PWB02CM48
DWB02CM69
Dielectric voltage supply to output
4 kV
Rated operational power
M23
M48
M69
9 VA @ 230 V, 50 Hz
13 VA @ 400 V, 50 Hz
21 VA @ 600 V, 50 Hz
L1 and L2
Supplied by
Power ON delay
Reaction time
1 to 30 s ± 0.5 s
(input signal variation from
-20% to +20% or from
+20% to -20% of set value)
< 250 ms
< 250 ms
(15 min warm-up time)
± 1000 ppm/°C
± 10% on set value ± 50 ms
± 0.5% on full-scale
Alarm ON delay
Alarm OFF delay
Accuracy
Temperature drift
Delay ON alarm
Repeatability
Indication for
Power supply ON
Alarm ON
LED, green
LED, red (flashing 2 Hz
during delay time)
LED, yellow
Output relay ON
Environment
Degree of protection
Pollution degree
Operating temperature
@ Max. voltage, 50 Hz
@ Max. voltage, 60 Hz
Storage temperature
Housing dimensions
DIN-rail version
Plug-in version
Weight
Screw terminals
Tightening torque
IP 20
3 (DWB02), 2 (PWB02)
-20 to +60°C, R.H. < 95%
-20 to +50°C, R.H. < 95%
-30 to +80°C, R.H. < 95%
45 x 80 x 99.5 mm
36 x 80 x 94 mm
Approx. 250 g
Max. 0.5 Nm
acc. to IEC 60947
UL, CSA
Yes
Electromagnetic Compatibility
According to EN 61000-6-2
According to EN 61000-6-3
Approvals
CE-Marking
EMC
Immunity
Emission
Mode of Operation
DWB02 and PWB02 mea-
sure the active power of a 3-
phase balanced system. The
relay has an adjustable pow-
er ON delay in order to avoid
undesired overload detec-
tion during motor start.
Example 1
Latching mode, relay NE
In this application DWB02 or
PWB02 is connected to an
external current metering
transformer, type MI..., (con-
nected between U1 & U2) as
well as to a 3-phase asyn-
chronous motor. The relay is
energized as soon as the
power supply is applied.
After the power ON delay,
the unit starts to measure
power. If it is within the set-
points, the relay is ener-
gized, and the yellow LED is
ON. As soon as the power
drops below the lower set-
point or raises above the
upper setpoint the output
relay releases after the set
time has expired. To restart
the measurement, connect
Z1 and U1 (2 and 9) or inter-
rupt the power supply for at
least 1 s.
Example 2
Non-latching mode, relay
NE.
DWB02 and PWB02 react
as described in the previous
example 1 except that the
relay reactivates automati-
cally as soon as active pow-
er is back within the two
setpoints again. When the
measured
power
rises
above the adjusted upper
level, the red LED starts
flashing, and the output
relay releases after the set
time period. When the mea-
sured power drops below
the adjusted lower level, the
red LED starts flashing, and
the output relay releases
after the set time period.
Example 3:
DWB02CM2310A
PWB02CM2310A can be
used for monitoring the
power of a 1-Phase load
with 208 to 240 V AC mains
voltage. In this case the
power supply has to be con-
nected between L1, L2 (or 5,
6); L2 and L3 (or 6 and 7)
have to be interconnected.
and
Example 4
Start/stop mode, relay NE.
In this application DWB02 or
PWB02 are directly connect-
ed to a 3-phase asyn-
chronous motor. The relay is
energized as soon as the
power supply is applied and
the start/stop contact is
closed. After the power ON
delay, the unit starts to mea-
sure the active power. If it is
within the setpoints the relay
is energized. As soon as the
power drops below the low-
er setpoint or raises above
the upper setpoint the out-
put relay releases and the
red LED turns on after the
set time has expired. When
the start/stop contact is
opened the relay is immedi-
ately
de-energized.
To
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgSnO
)
Resistive loads
SPDT relay
250 VAC
μ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 8 A, 250 V, cos
= 1)
≤
7200 operations/h
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
Operating frequency
Dielectric strength
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 μs)
≥
2 kVAC (rms)
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