CD Automation CD3000E User manual

CD Automation S.r.l.
Via Picasso 34/36 - 20025 – Legnano (MI) – ITALY
Tel [phone] – Fax [phone]
E-Mail: [e-mail] - WEB:
www.cdautomation.com
CD3000E
Serial Communication
Manual
USER’S MANUAL
Rev. 08/20 3
00003

1 RS485 Serial Port
The serial communication port RS485 is available on the Command Terminals and on the 9pin DIN
male connector.
On this port may be done a network up to 27 CD3000E.
On the 9pin DIN male connector is also possible connect the CD-EASY (see par. Errore. L'origine
riferimento non è stata trovata.
)
Pin Descri tion
PMS5 (+5V)
2 GND 0V
3 GND 0V
4 Reserved (Rxd0)
5 GND 0V
6 RS485 A
7 RS485 B
8 nc
9 Reserved (Txd0)
Terminal Descri tion
RS485 A
2 RS485 B
3 For internal use
4 For internal use

2 MODBUS communication
The serial communication port of the thyristor unit is two-wire RS485 type.
This port use an half-duplex system.
When a Unit must transmit active the transmission line, and when there are not units in
transmission the outputs are fixed to high impedance.
The serial communication port allows to communicate between the thyristor units and a MASTER
device (ex. an computer or a terminal). The cable must be rated for use to data transfer
2.1 MODBUS RTU Protocol
The communication is based on the standard industrial MODBUS RTU with the following
restrictions
:
• The Baud rate can be 4800-9600- 9200 Baud (Standard 9200).
• The Preset Multiple Registers (Funct. 6) is limited to the writing of a single
parameter for message.
The following MODBUS functions are supported:
Function Descri tion
03 Read Holding Registers
6 Preset Multiple Registers
The unit support the Broadcast messages:
It' possible send a Broadcast messages using the address 0, all the units respond at
the message without sending back any reply.
2.2 Message Format
The transmission format is a bit start, 8 date bit, and bit stop with no parity verification.
Each message terminate after a said time of "time out", equal at 3.5 time of a character
transmission, where there are not transitions on the transmission line.
The first Byte of each message is always the address of the unit that is a value from to 255 or 0
for the broadcast messages, the second is always the function number, and the rest of the
message depends of the function demand.
When a Slave receive an message, the unit send an answer with the same structure
but with the information demanded.
Each message is followed by CRC (Cyclic Redundancy Check) with two byte. The CRC identify the
incongruity situations of the message, in this case the receiver ignore the message.
The CRC is calculated in accordance with a formula that imply a recursive division of the data by a
polynomial.
The polynomial divisor is:
2
6
+ 2
5
+ 2
2
+ (Hex 8005)
but is modified in two ways:
• Since the bits order are reversed, then the binary pattern is also reversed, and the most
significant bit (MSB) is the right-most bit.
• Since interest only the remainder, the right-most bit could be discarded.
Therefore, the polynomial divisor has value: Hex A00
Normal bit order:
Most significant bit
Least significant bit
Most significant Byte Least significant Byte
Reversed bit order:
Least significant bit
Most significant bit
Least significant Byte Most significant Byte
N.B.: With the reversed bit order, also the CRC 6 returns the with the reversed bit order

The following flow-diagram show how to organize the CRC 6 bit.
C Language CRC 16 Exam le
static short CRC 6 (unsigned char *p_first,unsigned char *p_last)
{
unsigned int crc=0xffff;
short j;
for (;p_first<=p_last;p_first++)
{
crc ^= *p_first;
for(j=8;j>0;j--)
{
if(crc & 0x000 )
{
crc = crc >> ;
crc ^= 0xA00 ;
}
else
{
crc = crc >> ;
}
}
}
return (crc);
}

2.3 Read Holding Registers
This function reads the instantaneous value of only one specified number of parameter from an
address.
The message is composed by 8 Byte: one Byte is for the address, one for the function (03 Hex),
two Byte for the first parameter to read, two Byte for the total number of parameters to read that
is
fixed to 1 (0001 Hex)
, and finally two Byte for the CRC:
Address
Unit Function
Address of the First
Parameter N° of the Parameter
CRC 16
3
3Hex HI LO 0 LO HI
The answer is an echo of the first two Byte (address and function), one byte with the number of
following byte to exclusion of the CRC, the demanded values and finally two Byte for the CRC:
Address
Unit Function
N° of
Byte
First
Parameter
Value
CRC 16
3
3Hex 2 HI LO LO HI
2.4 Preset Multi le Registers
This function could write only a parameter for each message.
The message is composed by Byte: one Byte for the address, one for the function ( 0 Hex), two
Byte for first parameter to write, two Bytes for the N° of parameters, fixed to (000 Hex), one
Byte with the number of following Bytes, fixed to 2 (02 Hex), two Byte for the CRC:
Address
Unit Function
Address of the
First Parameter
N° of the
Parameter
N° of
Byte
Value to
write CRC 16
6
0Hex HI LO 0 2 HI LO LO HI
The answer is an echo of the first two Byte (address and function), two Byte for first written
parameter, two Byte with the N° of parameters, fixed to (000 Hex), two Byte for the CRC:
Address
Unit Function
Address of the
First Parameter
N° of the
Parameter CRC 16
6
0Hex HI LO 0 LO HI

2.5 Error and exce tion res onses
If a message contains an altered character, if fails the CRC, or if the received message contains a
syntax error (for example the number of the byte or of the words is not correct), then the unit will
ignore the message.
If the received message is correct but contains a not valid value, the unit will send an answer of
exception (5 byte):
Address Unit Function Error Code CRC 16
LO HI
The byte with the function number, represent the function number of the message that has caused
the error with the first Bit set to (ex. the function 3 becomes 0x83) The error code could be one
of the followings:
Error Code Name Cause
ILLEGAL FUNCTION Function not supported.
2 ILLEGAL DATA
ADDRESS Address out of range.
3 ILLEGAL DATA VALUE Attempt to write invalid or action not carried out.
NOTE: If you write a parameter's value equal at his actual value this is a valid
transaction and don't cause an error.
2.6 Address Configuration
The thyristor unit is assigned a unique device address by the user in the range (default) to
27 using the parameter P 5  in the Hardware menu. This address is used to recognise the
messages queries to her assigned.
The thyristor unit does not respond at the messages queries that don't have the same assigned
address.
The thyristor unit will also accept global messages (Broadcast) sends at the address 0. No
responses are returned for globally addressed queries.

3 Parameter List.
Status Code/Alarm 1
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


AL_1 1 H1
ALM
− 0 1 0 1
Bit 0 = 1 → Phase Loss

Bit 1 = 1 → N.A.

Bit 2 = 1 → N.A.

Bit 3 = 1 → N.A.

Bit 4 = 1 → External Alarm

Bit 5 = 1 → Heat Sink Over Tem .

Bit 6 = 1 → N.A.

Bit 7 = 1 → N.A.
Status Code/Alarm 2
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


AL_2 2 H2
ALM
− 0 1 0 1
Bit 0 = 1 → Thyristor Failure

Bit 1 = 1 → Heater Break Alarm

Bit 2 = 1 → Unbalanced Load

Bit 3 = 1 → N.A.

Bit 4 = 1 → N.A.

Bit 5 = 1 → N.A.

Bit 6 = 1 → N.A.

Bit 7 = 1 → N.A.
Local/Remote Set- oint selection
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


L--r 3 H3 Sw 0 0 1 0 1
0 = Analog set oint

1 = Digital set oint
Local Set- oint Value
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


L_SP 4 H4 % 0 0 4095 0 100,0
Par.
Ty e
Unit
Ty e
R
All
Par.
Ty e
Unit
Ty e
R
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W All

Enable Start/Sto from serial Link
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


P005 5 H5 Sw 0 0 1 0 1
0= Start/Sto from terminal

1= Start/Sto from terminal + serial link
NOTE: Terminal command work in series
mode with serial communication
commands
Remote Set- oint value
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


r_SP 8 H8 % 0 0 4095 0 100,0
With in ut 4÷20mA:

In ut 4mA P008 

 = 0%

In ut 12mA P008 

 = 50%

In ut 20mA P008 

 = 100
Voltage Su ly
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


V_Ln 11 HB V − 0 4095 0 1000
Maximum Out ut
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


O tN 19 H13 % 100,0 2048 4095 50,0 100,0
Firing Mode Selection (2PH)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note

Fir 23 H17 Sw 0* 0 2 0 2 0= BURST firing mode

2= DELAY TRIGGERING mode
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R
All
Par.
Ty e
Unit
Ty e
R All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R/W
2PH
Only

Firing Mode Selection (3PH)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note

Fir 23 H17 Sw 1* 0 2 0 2 0= BURST firing mode

1= PHASE ANGLE mode

2= DELAY TRIGGERING mode
Ram U
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


rP- 24 H18 sec
2 0 1000 0 1000
Ram Down
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


rP-d 25 H19 sec
2 0 1000 0 1000
Average voltage out ut on the three hase(V)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


Vo t 31 H1F V − 0 1000 0 1000
Average Power out ut on the three hase
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM

Po 32 H20 Kw − 0 1000 0 1000
RMS Current value on hase R
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


A__r 33 H21 A − 0 1000 0 1000
Par.
Ty e
Unit
Ty e
R/W
3PH
Only
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R All
Par.
Ty e
Unit
Ty e
R All
Par.
Ty e
Unit
Ty e
R All

RMS Current value on hase S
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


A__S 34 H22 A − 0 1000 0 1000
RMS Current value on hase T
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


A__t 35 H23 A − 0 1000 0 1000
Start/Sto
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


P045 45 H2D
P ls
0 0 1 0 1
0 = Sto

1 = Start
Reset
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


P047 47 H2F
P ls
0 0 1 0 1
0 = No o eation

1 = Enable RESET
Save value Minimum in ut 1
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


LiA1
57 H39 Sw 0 0 1 0 1
0 = Default

1 = Save value
Save value Maximum in ut 1
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note




HiA1
58 H3A Sw 0 0 1 0 1
0 = Default

1 = Save value
Par.
Ty e
Unit
Ty e
R All
Par.
Ty e
Unit
Ty e
R All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All

Save value Minimum in ut 2
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


LiA2
59 H3B Sw 0 0 1 0 1
0 = Default

1 = Save value
Save value Maximum in ut 2
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


HiA2
60 H3C Sw 0 0 1 0 1
0 = Default

1 = Save value
HB sensitivity
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


Hb_S
66 H42 % 100,0 0 4095 0 160,0
Feed Back Selection
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


FEEd
70 H46 Sw 1* 0 3 0 3
0 = Current feed-back (rms value)

1 = Voltage feed-back (rms value)

2 = Power feed-back VxI

3 = External feed-back
Burst Firing Setting
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


bF_n
83 H53
Cyc.
8 * 1 255 1 255 Not Used in Fir = Phase Angle
Ram setting in Burst Firing
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


bF_r
84 H54
Cyc.
0 0 100 0 100

4 With
S+BF
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R
/W
Al
l
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W All

Delay Triggering
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM

dt 85 H55 ° 80 0 100 0 100
Analog / Digital current limit selection
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


CL_i 90 H5A Sw 1 0 1 0 1
0 = Analog, Current Limit from analog
in ut (terminals 21-22)

1 = Digital, Current Limit from arameter
P091 


Internal current limit value
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM

CL 91 H5B % 100,0 0 4095 0 100,0
Analogue Out ut Ty e (Retransmition)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


o4NA
97 H61 Sw 0 * 0 1 0 1
0 = 0 ÷ 10Vdc / 0 ÷ 20mA

1 = 4 ÷ 20mA
Define the load ty e connection (2PH)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


LoAd
98 H62 Sw 0 * 0 2 0 2
0=star

2=delta
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W
2PH
Only

Define the load ty e connection (3PH)
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


LoAd
98 H62 Sw 0 * 0 3 0 3
0=star

1=star+N

2=delta

3=o en delta
Digital in ut configuration
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


C_di
103 H67 Sw 1 0 4 0 4
0 = Additional Reset Alarm

1 = Set oint Zero

2 = Feed-back Selection

3 = Set oint Analog/Digital

4 = External Alarm
Analog Out ut 1 Scaling
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


G_A1
104 H68 Kw 100,0 0 3000 0 300,0
for size from 25 to 300A

1000 0 3000 0 3000
for size u er to 300A
Digital out ut 2 configuration
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


do_2
112 H70 Sw 1 0 3 0 3
0 = Thyristor Failure

1 = Heater Break Alarm (HB)

2 = Unbalanced Load

3 = Current limit active
Digital out ut 3 configuration
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


do_3
113 H71 Sw 0 0 3 0 3
0 = Thyristor Failure

1 = Heater Break Alarm (HB)

2 = Unbalanced Load

3 = Low voltage
Par.
Ty e
Unit
Ty e
R/W
3PH
Only
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R
/W
All

Baud Rate on serial ort
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


bA d
114 H72 Sw 2 0 2 0 2
0 = 4800

1 = 9600

2 = 19200
Address Number
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


Addr
115 H73 Hd 1 1 127 1 127
O erative Voltage
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM


U_OP
116 H74 V 400* 100 4095 24 1000
Load Nominal Current
Par.
Dis lay
Par.
Name
Address
DEC
Address
HEX UM
Default
Value
UM
Min
Value
DEC
Max
Value
DEC
Min
Value
UM
Max
Value
UM
Sam le Values and Note


A_Lo
119 H77 A
CD3000
E Max
C rrent
0 3000 0 300,0
for size from 25 to 300A

0 3000 0 3000
for size u er to 300A
Par.
Ty e
Unit
Ty e
R
/W
All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R/W All
Par.
Ty e
Unit
Ty e
R
/W
All