Acrel AMC Series User Manual

29
069CH-069FH
B phase current minimum
value and occurrence time
R
(The same as the A phase voltage extreme
value)
Uint16
06A0H-06A3
H
C phase current minimum
value and occurrence time
R
(The same as the A phase voltage extreme
value)
Uint16
0700H
Voltage imbalance
R
0-9999 (1 decimal place, example 20 means 2%)
Uint16
0701H
Current imbalance
R
0-9999 (1 decimal place, example 20 means 2%)
Uint16
6.2 Communication application
The AMC series intelligent power collection and monitoring device has unified planning of the
communication address table during design. The user can conveniently realize the functions of telemetry, remote
signaling and remote control according to the following description.
6.2.1 Switching input and output
The switching input of AMC series intelligent power collection and monitoring device adopts dry contact
switch signal input mode. The instrument is equipped with working power supply, no external power supply is
required. When the external contact is closed or disconnected, the meter displays the switch status locally, and the
remote transmission function can be realized through the communication port of the meter, that is, the “remote
message” function.
The switching output of AMC series intelligent power collection and monitoring device is relay output,
which can be remotely controlled by the host computer (the remote control has two modes: 1, level trigger; 2.
pulse trigger) to realize the "remote control" function, or according to customer requirements. Implement the
corresponding alarm function (such as over current, under voltage).
The communication address of the AMC series intelligent power collection monitoring device and the digital
switching input and switching output is 0022H, and its correspondence with the digital input and output is as
follows:
0022H
16
15
14
13
12
11
10
9
8～1
DO
2
DO
1
DI
4
DI
3
DI
2
DI
1
Reserved
6.2.2 Power parameters and electrical energy
The series of measured values are read by the command No. 03 of the Modbus-RTU communication protocol.
The correspondence between the communication value and the actual value is as follows: (Agreed Val_t is the
communication read value, Val_s is the actual value).
1. Phase voltage UA, UB, UC, line voltage UAB, UBC, UCA, zero sequence voltage:
Val_s=Val_t×10＾（DPT-4），Unit volt V, DPT is read from the high byte of 0023H .
2. Current IA, IB, IC, zero sequence current:
Val_s=Val_t×10＾（DCT-4），Unit Ampere A, DCT is read from the low byte of 0023H.
3.Power PA, PB, PC, Psum, QA, QB, QC, Qsum:
Val_s=Val_t×10＾（DPQ-4），Active power unit watt W, reactive power unit var, DPQ read from 0024H
high byte, active power and reactive power symbols from 0024H low byte (from high to low, Q, Qc, Qb, Qa,

Acrel AMC Series Specifications

General

Brand	Acrel
Model	AMC Series
Category	Measuring Instruments
Language	English