Huawei DTSU666-HW Bedienungsanleitung
DTSU666-HW Smart Power Sensor
Quick Guide
ZTY0.464.1516
Issue: 07
Date: 2022-04-27
1
1Overview
Specifications on the front panel
DTSU666-HW
The dimensional tolerance is ±1 mm.
Nameplate
Dimensions
Appearance
1.2
1.1
72 mm 80 mm
62 mm
101 mm
45 mm
35 mm
Installation
position
Category DTSU666-HW
Nominal voltage 230 V AC/400 V AC, 50 Hz/60 Hz
Current measurement range Direct connection: 0–80 A
Connection through current transformers: > 80 A
Voltage measurement range 90–1000 V (line voltage; potential transformers are required
if the voltage is greater than 500 V)
Electricity metering accuracy Class 1 (error within ±1%)
Power grid system Three-phase four-wire or three-phase three-wire
Baud rate 4800/9600/19200/115200 bps (default value: 9600 bps)
Operating temperature –25℃to +60℃
Installation mode Guide rail-mounted
Certification CE, RCM, and UKCA
Key Specifications
1.3
•Input voltage: When the line voltage is less than or equal to 500 V, connect the meter
directly. When the line voltage is greater than 500 V, connect the meter through potential
transformers.
•Input current: When the input current is 0 A to 80 A, connect the meter directly (channel 1).
When the input current is greater than or equal to 80 A, connect the meter through current
transformers (channel 2).
Port Definition
1.4
Cable Inlet Cable Outlet
2
1.4
2Installing the DTSU666-HW
1. Install the Smart Power
Sensor on the standard
guide rail of DIN35mm.
2. Press the Smart Power
Sensor downwards onto
the guide rail, and then
push it in place along
the guide rail.
Cable Port Type
Conductor
Cross-
sectional
Area Range
Outer
Diameter Source
Channel 1
voltage
cable
UA-1 and 3
Single-core
outdoor copper
cable
25 mm210 mm
Prepared by
the customer
UB-4 and 6
UC-7 and 9
UN-10 and 12
Channel 2
voltage
cable
UA-1
Single-core
outdoor copper
cable
4–25 mm25–10 mm
Prepared by
the customer
UB-4
UC-7
UN-10
Channel 2
current
transformer
cable
IA*-31
Single-core
outdoor copper
cable
2–4 mm23–5 mm
Prepared by
the customer
or supplied
with current
transformers
IA-33
IB*-34
IB-36
IC*-37
IC-39
Communications
cable
RS485A-24 Two-core
outdoor
shielded twisted
pair copper cable
0.25–1.5
mm24–11 mm
Supplied by
the
manufacturer
RS485B-25
3Installing Cables
3.1 Preparing Cables
The maximum torque of 1, 3, 4, 6, 7, 9, 10, and 12 terminal screws is 1.7 N·m, and the
recommended torque is 0.9–1.1 N·m. The maximum torque of 31, 33, 34, 36, 37, 39, 24,
and 25 terminal screws is 0.4 N·m, and the recommended torque is 0.15
–
0.25 N·m.
3
4
Each phase of UA, UB, and UC in the
Smart Power Sensor is connected with
a fuse and a thermistor to prevent
damage caused by external short
circuits. UA, UB, and UC do not need
external fuse protection.
Current ≤ 80 A > 80 A ≥ 0 A
Line voltage ≤ 500 V > 500 V
Connection
mode
Current and voltage
direct connection
Connection through
current transformers and
voltage direct connection
Connection through current
transformers and p
otential
transformers
Connection
setting
Direct connection:
SPEC = 1 (default)
Connection through transformers:
SPEC = 0
Current
transformation
ratio
CT = 1
(default)
CT = Ratio of the installed
current transformer
Potential
transformation
ratio
PT = 1.0
(default)
PT = Ratio of
the installed
potential transformer
Wiring
mode
3P4W:
net = n.34
(default)
3P3W:
net = n.33
3P4W:
net = n.34
(default)
3P3W:
net = n.33
3P4W:
net = n.34
(default)
3P3W:
net = n.33
3.2 Wiring Scenarios
You need to set parameters after cable connections are complete. For details, see section 4
"Display and Parameter Settings".
Current and Voltage Direct Connection (Current ≤ 80 A and Line
Voltage ≤ 500 V)
3.3
•Three-phase four-wire
connection
•Three-phase three-wire connection
(1) Shield layer of the signal cable
(1) Shield layer of the signal cable
You need to set parameters after
cable connections are complete.
For details, see section 4 "Display
and Parameter Settings".
5
SmartLogger networking
In the SmartLogger
networking scenario, the
power meter is connected to
the SmartLogger. In the non-
SmartLogger networking
scenario, the power meter is
connected to the inverter.
•Three-phase four-wire connection
•Three-phase three-wire connection
(1) Shield layer of the signal cable
(1) Shield layer of the signal cable
You need to set parameters after
cable connections are complete. For
details, see section 4 "Display and
Parameter Settings".
6
Smart Dongle networking
7
Please ensure that the
ground cable is installed
securely. Poor grounding
may cause electric shocks.
Connection Through Current Transformer and Voltage Direct
Connection (Current > 80 A, Line Voltage ≤ 500 V)
3.4
•You need to set
parameters after
cable connections
are complete. For
details, see section 4
"Display and
Parameter Settings".
•For the three-phase
three-wire
connection, phase B
does not need to
connect to a current
transformer.
Current transformers specifications: The accuracy class is 0.5, and the current on the secondary
side is 1 A or 5 A.
•Three-phase four-wire
connection
•Three-phase three-wire connection
(1) Shield layer of the signal cable
(1) Shield layer of the signal cable
SmartLogger networking
In the SmartLogger
networking scenario, the
power meter is connected to
the SmartLogger. In the non-
SmartLogger networking
scenario, the power meter is
connected to the inverter.
8
Please ensure that the
ground cable is installed
securely. Poor grounding
may cause electric shocks.
•You need to set
parameters after cable
connections are
complete. For details, see
section 4 "Display and
Parameter Settings".
•For the three-phase
three-wire connection,
phase B does not need to
connect to a current
transformer.
•Three-phase four-wire connection
•Three-phase three-wire connection
(1) Shield layer of the signal cable
(1) Shield layer of the signal cable
Smart Dongle networking
9
3.4 Connection Through Current Transformer and Potential
Transformer (Current ≥ 0 A, Line Voltage > 500 V)
3.5
Please ensure that the
ground cable is installed
securely. Poor grounding
may cause electric shocks.
Cable outlet (OUT)
•Three-phase four-wire connection
Cable outlet (OUT)
Current
transformers
Cable inlet (IN)
UA UB UC UN
Cable inlet (IN)
UA UB UC
You need to set parameters
after cable connections are
complete. For details, see
section 4 "Display and
Parameter Settings".
Current
transformers
•Three-phase three-wire connection
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