Vdc Voltmeter or ammeter
DHB-202
DHB-224
INSTRUCTION MANUAL
(M043B01-03-14A)
1
2
Contents
1. APPLICATION AND METER DESIGN ........................................5
2. METER SET ..................................................................................6
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY .................7
4. INSTALLATION ............................................................................8
5. SERVICE ....................................................................................11
6. RS-485 INTERFACE ..................................................................27
7. ERROR CODES .........................................................................41
8. TECHNICAL DATA ....................................................................42
9. MAINTENANCE AND TECHNICAL SERVICES ........................44
10. GUARANTEE ............................................................................45
3
4
1. APPLICATION AND METER DESIGN
The DHB-2xx meter is a programmable digital panel meter destined for
the measurement of d.c. voltage or d.c. current. Additionally, the meter
enables the indication of the current time. The readout field is a LED
display, which allows the exposition of results in colours: red, green
and orange. The measured input signal can be arbitrary converted by
means of a 21-point individual characteristic.
Features of the DHB-2xx meter:
l display colour individually programmed in three intervals,
l programmable thresholds of displayed overflows,
l 2 NOC relay alarms operating in 6 modes,
l 2 switched relay alarms with a switching contact operating
in 6 modes (DHB-224),
l signaling of the measuring range overflow,
l automatic setting of the decimal point,
l programming of alarm and analog outputs with the reaction
on the chosen input quantity (main or auxiliary input),
l real-time clock with the function of the clock supply support
in case of the meter supply decay,
l programmed averaging time – function of walking window with the
averaging time up to 1 hour,
l monitoring of set parameter values,
l interlocking of introduced parameters by means of a password,
l recount of the measured quantity on the base of a 21-point
individual characteristic,
l service of the interface with MODBUS protocol in the
RTU mode (DHB-224),
l conversion of the measured value into a standard – programmable
current or voltage signal (DHB-224),
l highlight of any measuring unit acc. to the order.
5
l signaling of alarm operation – switching the alarm on causes
the highlight of the output number,
l galvanic separation between connectors: alarm, supply, input,
analog output connections and RS-485 interface.
Protection degree from frontal side: IP65
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastics.
Fig. 1. View of the DHB-2xx meter
2. METER SET
The set is composed of:
- DHB-2xx meter ..................................................... 1 pc
- User’s manual ......................................................1 pc
- Guarantee card .................................................... 1 pc
- Clamps to fix in the panel ....................................4 pcs
- Seal ......................................................................1 pc
When unpacking the meter, please check whether the type and execution code on the data plate correspond to the order.
6
3. BASIC REQUIREMENTS, OPERATIONAL
SAFETY
In the safety service scope, the DHB-2xx meter meets the requirements
of the EN 61010-1 standard.
Observations concerning the operational safety
l All operations concerning transport, installation, and commissioning
as well as maintenance, must be carried out by qualified, skilled personnel, and national regulations for the prevention of accidents must
be observed.
l The programming of DHB-2xx meter parameters must be carried
out after disconnecting measuring circuits
l Before switching the meter on, one must check the correctness of
connections.
l Do not connect the meter to the network through an autotransformer.
l Before removing the meter housing, one must switch the supply off
and disconnect measuring circuits.
l The meter is designed to be installed and exploited in electromag-
netic industrial environment conditions.
l Non-authorized removal of the housing, inappropriate use, incorrect
installation or operation, creates the risk of injury to personnel or meter
damage.
For more detailed information, please study the User’s Manual.
l When connecting the supply, one must remember that a switch or
a circuit-breaker should be installed in the building. This switch should
be located near the device, easy accessible by the operator, and
suitably marked as an element switching the meter off.
7
4. INSTALLATION
The meter has separable strips with screw terminals, which enable the
connection of external wires of 2.5 mm2 cross-section. Strips of input
signals are protected against any accidental disconnection by means
of a screw joint.
One must prepare a hole of 92
thickness should not exceed 6 mm.
The meter is adapted to be mounted in a panel. The meter must be
introduced from the panel front with disconnected supply voltage. Before the insertion into the panel, one must check the correct placement
of the seal. After the insertion into the hole, fix the meter by means of
clamps (fig.2).
+0,6
Fig. 2. Meter fixing
´ 45
+0,6
mm in the panel, which the
Fig. 3. Overall dimensions
8
4.1. Signals Leads
Signals led out on the meter connectors are presented on the fig. 4.
All input signals are separated between them from remaining circuits.
Analog outputs are not separated between them. One don’t have to
take simultaneously advantage of voltage and current measurements, since measuring circuits of voltage and current are not galva-
nically isolated.
( Model DHB-224)
DHB-202 / DHB-224
Fig. 4. Description of signals on connection strips
· 1 A, 5 A – terminals for the current measurement on the 1 A
or 5 A range.
· 100 V, 500 V – terminals for the voltage measurement on the 100 V
or 500 V range.
· OC –output of open collector type with an npn output transistor.
The output is turned on in case of a measuring range overflow.
9
4.2. Examples of Connections
An example of the DHB-2xx meter connection for current measurement
is presented on the fig. 5.
However, an example of the meter connection in the configuration for
voltage measurement is presented on the fig. 6.
DHB-202 / DHB-224
Fig. 5. Meter connection in the configuration for current measurement
DHB-202 / DHB-224
Fig. 6. Meter connection in the configuration for voltage measurement
10
5. SERVICE
5.1. Display Description
Fig. 7. Description of the meter frontal plate
5.2. Messages after Switching the Supply on
After switching the supply on, the meter displays the meter name
DHB-2xx, and next the program version in the form „r x.xx” – where
x.xx is the number of the current program version or the number of a
custom-made execution. Next, the meter carries out measurements
and displays the value of the input signal. The meter sets automatically the decimal point position, when displaying the value. The
format (number of places after the decimal point) can be limited by
the user.
11
5.3. Functions of Push-buttons
- Acceptation push-button:
Þ entry in programming mode (press and hold ca 3 seconds)
Þ moving through the menu – level selection,
Þ entry in the mode changing the parameter value,
Þ acceptation of the changed parameter value.
Þ stop the measurement – when holding down the push, the result
is not updated. The measurement is still carried out.
Þ Turning on the power supply of the meter while holding the button
– entering the software-update mode through RS485 interface
- Push-button increasing the value:
Þ display of maximal value, The pressure of the push-button causes
the display of the maximal value during ca 3 seconds.
Þ entry in the level of the parameter group,
Þ moving on the chosen level,
Þ change of the chosen parameter value – increasing the value.
- Push-button to change the digit:
Þ display of minimal value, The pressure of the push-button causes
the display of the maximal value during ca 3 seconds.
Þ entry in the level of parameter group,
Þ moving through the chosen level,
Þ change of chosen parameter value – shift on the next digit,
- Resignation push-button:
Þ entry in the menu monitoring the meter parameters (press and
hold ca 3 seconds),
Þ exit from the menu monitoring meter parameters,
Þ resignation of the parameter change,
Þ strict exit from the programming mode (press and hold
ca 3 seconds).
12
The pressure of the push-button combination and holding down them during ca 3 seconds causes the deletion of alarm signaling. This operation acts only when the support function is switched on.
The pressure of the push-button combination causes
the erasing of the minimal value.
The pressure of the push-button combination causes
the erasing of the maximal value.
The pressure and holding down the push-button during ca 3
seconds causes the entry to the programming matrix. The programming matrix can be protected by a safety code.
The pressure and holding down the push-button during ca 3
seconds causes the entry to the menu monitoring meter parameters.
One must move through the monitoring menu by means of and
push-buttons. In this menu, all programmable meter parameters are available only for readout. In this mode, the menu Ser is not
available. The exit from the monitoring menu is carried out by means of
the push-button. In the monitoring menu, parameter symbols
are displayed alternately with their values.
The service algorithm of the meter is presented on the fig. 8.
The appearance of the symbols mentioned below on the display
means:
- Incorrectly introduced safety code.
- Overflow of the upper measuring range.
- Overflow of the lower measuring range.
13
14
Fig. 8. Service algorithm of the DHB-2xx meter
5.4. Programming
The pressure of the push-button and holding it down through
ca 3 seconds causes the entry to the programming matrix. If the entry is
protected by a password, then the safety code symbol SEC is displayed alternately with the set value 0. The write of the correct code causes
the entry to the matrix, the write of an incorrect code causes the display
of the ErCod inscription. The matrix of transitions to the programming
mode is presented on the fig. 9. The choice of the level is made by
means of the push-button, however the entry and moving
through the parameters of the chosen level is carried out by means of
the and push-buttons. Parameter symbols are displayed alternately with their current values. In order to change the value
of the chosen parameter, one must use the push-button. For
resignation from change, one must use the push-button. In order to exit from the chosen level, one must chose the ----- symbol and
press the push-button. To exit from the programming matrix,
one must press during ca 1 second the push-button. Then, the
inscription End appears for ca 3 seconds and the meter transits to the
display of the measured value. In case of leaving the meter in the parameter programming mode, the automatic abandon of the programming
mode (the parameter and next the menu) follows after 30 seconds and
the meter transits to display the measured value.
5.4.1. Value Change Way of the Chosen Parameter
In order to increase the value of the chosen parameter, one must press
the push-button. A single pressure of the push, causes the
increase of the value of 1. The increase of value when displaying the
digit 9, causes the set of 0 on this digit (or the minus mark in case of
the oldest display digit). The change of the cursor position after pressing the push-button. In order to accept the set parameter,
15
16
Fig. 9. Programming matrix
one must hold down the push-button. Then, the write of the
parameter follows and the display of its symbol alternately with the new
value. The pressure of the push-button during the change of
the parameter value will cause the resignation of the write.
5.4.2. Changing Floating-point Values
The change is carried out in two stages ( the transition to the next stage
follows after pressing the push-button:
1) setting values from the range -19999M...99999, similarly as for
integral values;
2) setting decimal point positions (00000., 0000.0, 000.00, 00.000,
0.0000); the push-button shifts the decimal point to the left,
however the push shifts the decimal point to the right;
The pressure of the push-button during the change of the parameter value will cause the resignation of the write.
5.4.3. Characteristic of Programmed Parameters
Programmed parameters and the range of their quantity changes are
presented in the table below.
Table 1
Parameter
symbol
tYP1
Cnt1
Kind of the connected input signal
The measurement time is expressed in
seconds. The result on the display presents the mean value counted in the Cnt1
period. This parameter is not taken into
consideration during the measurement
in the HoUr modes.
InP 1
Description Range of changes
500U – input 500 V.
100U – input 100 V
5A – input 5 A.
1A – input 1 A.
HoUr – current time.
1...3600
17
-----
-----
Parameter
symbol
IndCp
Xn
Yn
Parameter
symbol
d_P
CoLdo
CoLbE
CoLuP
CoLLo
CoLHi
ovrLo
ovrHi
Ind
Description Range of changes
Number of points of the individual characteristic. For a value less than 2, the
individual characteristic is switched off.
The number of segments is the number
of points decreased of one.
The individual characteristic is not taken
into consideration in the HoUr modes.
The point value for which we will expect
Yn (n-point number)
Expected value for Xn.
dISP
Description Range of changes
Minimal position of the decimal point
when displaying the measured value
- display format. This parameter is not
taken into consideration during the
CoUntH and HoUr modes.
Display colour, when the displayed
value is less than CoLLo.
Display colour, when the displayed
value is higher than CoLLo and less
than CoLHi.
Display colour when the displayed value
is higher than CoLHi
Lower threshold of colour change
Upper threshold of colour change
Lower threshold of the display narrowing. Values below the declared
threshold are signaled on the display by
the symbol.
Upper threshold of display narrowing.
Values above the declared threshold are
signaled on the display by the symbol.
.
.
Table 2
1...21
-19999...99999
-19999...99999
Table 3
0.0000 – 0
00.000 – 1
000.00 – 2
0000.0 – 3
00000 – 4
rEd – red
grEEn – green
orAnG -orange
-19999..99999
-19999..99999
-19999..99999
-19999..99999
18
Parameter
symbol
P_A1
P_A2
P_A3
P_A4
tYP1
tYP2
tYP3
tYP4
PrL1
PrL2
PrL3
PrL4
PrH1
PrH2
PrH3
PrH4
dLY1
dLY2
dLY3
dLY4
ALr1, ALr2, ALr3, ALr4
Description Range of changes
Input quantity, steering the alarm.
Alarm type. Fig. 12 presents the
graphical imaging of alarm types.
lower Alarm threshold.
upper Alarm threshold.
Delay of alarm switching.
Table 4
InP1 – Main input (indicated
value).
HoUr – real time clock
n-on – normal (transition
from 0 to 1),
n-oFF – normal (transition
from 1 to 0),
on – switched on,
oFF – switched off,
H-on – manually switched
on; till the change time of
the alarm type, the alarm
output remains switched on
for good,
H-oFF – manually switched
off; till the change time of
the alarm type the output
alarm remains switched off
for good.
-19999...99999
-19999...99999
0...900
19
LEd1
LEd2
LEd3
LEd4
Support of alarm signalling. In
the situation when the support
function is switched on , after
the alarm state retreat, the
signalling diode is not blanked
. It signals the alarm state till its
blanking moment by means of
the push-button combination. This function
concerns only and exclusively
the alarm signaling, thus relay
contacts will operate without
support according to the chosen
type of alarm.
oFF – function switched off
on – function switched on
Parameter
symbol
P_An
AnL
AnH
tYPA
20
out
Description Range of changes
Input quantity, on which the
analog output has to react..
Lower threshold of the analog
output. One must give the value,
for which we want to obtain the
minimal value of signal on the
analog output.
Upper threshold of the analog
output. One must give the value
on which we want to obtain the
maximal value of signal on the
analog output( 10 V or 20 mA).
Analog output type.
Table 5
InP – main input (indicated
value).
HoUr – Real Time Clock
-19999...99999
-19999...99999
0_10U – napięciowe 0..10V
0_20A – prądowe 0..20mA
4_20A – prądowe 4..20mA
bAud
prot
Addr
Parameter
symbol
SEt
SEC
HOUR
unIt
tESt
Baud rate of the RS485 interface
Type of transmission frame of the
RS-485 interface.
Address in the MODBUS network.
The write of the value 0 switches
the interface off.
SEr
Description Range of changes
Write of manufacturer’s settings.
The setting of the value YES
causes the write of standard
parameters into the meter.
The value of manufacturer’s
parameters is presented in the
table 7.
Introduction of a new password.
The introduction of the value 0
switched the password off.
Setting of the current time. The
introduction of a wrong time cancels the introduction of time.
The introduced value will not be
collected.
Backlighting of the unit.
Display test. The test consists of
a successive lighting up of digital
display segments. Alarm diodes
and unit highlighting diodes
should be lighted .
4.8 – 4800 bit/s
9.6 – 9600 bit/s
19.2 – 19200 bit/s
38.4 – 38400 bit/s
57.6 – 57600 bit/s
115.2 – 115200 bit/s
r8n2
r8E1
r8o1
r8n1
0...247
Table 6
no – do nothing.
YeS – causes the write of
manufacturer’s settings.
0...60000
0.00...23.59
On – unit highlight switched
on.
Off – unit highlight switched
off.
YeS – causes the test start.
The pressure of the
push-button ends the test.
no – do nothing.
21
5.4.4 Individual Characteristic
DHB-2xx meters can recalculated the measured value into any value
thanks to the implemented individual characteristic function. The individual characteristic rescales the input signal measured according to the
set characteristic. The way of the individual characteristic interaction on
the meter operation has been presented on the fig.10.
Fig. 10. Action of the individual characteristic
The user can introduce maximally twenty linearizing functions by giving
points defining intervals of the given function operation and expected
values for successive points. On the base of given points and corresponding values to them, coefficients a and b of recalibrating straight
lines are calculated. The programming of the individual characteristic
consists on the definition of the number of points which the input function will be linearized by. On must remember that the number of linearizing functions is less of one than the number of points. Next, one must
program successive points by giving the measured value (Hn) and the
expected value corresponding to it, – value, which has to be displayed
(Yn). The graphic interpretation of the individual characteristic is presented on the fig. 11..
22
Fig. 11. Individual characteristic
During the function approximation, one must remember that for the approximation of functions strongly differing from the linear characteristic
, the higher the number of linearizing segments, the smallest the error
related to the linearization.
If measured values are smallest from H1 then, recalculations will be
made on the base of the first straight line calculated on the base of
points (H1,Y1) an (H2,Y2). However, for values higher than Hn (where n
– the last declared measured value) the value to display will be calculated on the base of the last assigned linear function.
Note: All introduced points of the measured value (Hn) must be arranged in the increasing sequence, such to preserve the following dependence:
H1 < H2 < H3... < Hn
If the above is not fulfilled, the individual characteristic function will be
automatically switched off (will not be realized) and a diagnostic flag
will be set in the status register.
23
5.4.5 Alarm Types
The DHB-2xx meter is equipped with 2 alarm outputs with NOC contact
(make contact) and two alarm outputs with NOC/NCC contact (make
and break contact) (DHB-224). Each of alarms can work in one of the
six modes . The work of alarms in modes is presented in the fig. 12. :
n-on, n-off, on, off. Two remaining modes : h-on and h-off mean respectively, always switched on and always switched off. These modes are
destined for the manual simulation of alarm states.
a) n-on b) n-off
24
c) on d) off
Fig. 12. Alarm types: a) n-on, b) n-off c) on d) off.
Caution !
l In case of alarms of n-on, n-off, on, off types, the write of
PrL>PrH will cause the alarm switching off.
l In case of a measuring range overflow, the reaction of the relays
is compatible with written PrL, PrH, tYP parameters. In spite of the
displayed overflow, the meter still carries out the measurement.
l The meter controls currently the value of the introduced parame-
ter at the moment. In case when the introduced value overflows the
upper range given in the table 1, the meter will make automatically
the change into the maximal value. Similarly, in case when the
introduced value overflows the lower change range given in the
table 1, the meter will make automatically the change into the
minimal value.
5.4.6 Display Format
The DHB-2xx meter adapts automatically the display format (precision)
to the value of measured quantity. So that the function could be fully
used, one must choose the format 0.0000, then the meter will display
the measured value with the possible highest accuracy. This function
does not operate for the time display, where the format is set automatically. The current time (HOUr mode) is displayed in the 24 hours’
format, in the form hh.mm, where hh – current time, and mm – current
minute..
25
5.5. Manufacturer’s Parameters
Standard settings of the DHB-2xx meter are presented in the table 7.
These settings can be restored by means of the meter menu through
the choice of the option Set from the menu Ser.
Table 7
Parameter symbol Level in the matrix
tYP1 1
Cnt1 1 1
indCP 2 no
H0 2 0
Y0 2 0
H1 2 100
Y1 2 100
... ... ...
Hn 2 (n-1)*100
Yn 2 (n-1)*100
d_P 3 0000.0
CoLdo 3 grEEn
CoLbE 3 orAng
CoLuP 3 rEd
CoLLo 3 50.00
CoLHi 3 80.00
ovrLo 3 -19999
ovrHi 3 99999
P_A1, P_A2,
P_A3, P_A4
tYP1, tYP2,
tYP3, tYP4
PrL1, PrL2,
PrL3, PrL4
PrH1, PrH2,
PrH3, PrH4
4, 5, 6, 7 InP1
4, 5, 6, 7 h-off
4, 5, 6, 7 1000
4, 5, 6, 7 2000
Standard value
500U
26
dLY1, dLY2,
dLY3, dLY4,
LEd1, LEd2,
LEd3, LEd4
P_An 8 InP1
tYPA 8 0_10U
AnL 8 0
AnH 8 99999
bAud 8 19.2
prot 8 r8n1
Addr 8 1
SEt 9 no
SEC 9 0
HOUR 9 not defined
unit 9 off
tESt 9 off
4, 5, 6, 7 0
4, 5, 6, 7 oFF
6. RS-485 INTERFACE
DHB-224 programmable digital meters have a serial link in RS-485
standard for the communication in computer systems and with other
devices fulfilling Master function. An asynchronous communication
character protocol MODBUS has been implemented on the serial link.
The transmission protocol describes ways of information exchange between devices through the serial link.
6.1. Connection Way of the Serial Interface
The RS-485 standard allows to a direct communication of 32 devices
on a single serial link of 1200 m long (at baud rate 9600 b/s). For the
connection of a higher quantity of devices, it is necessary to apply additional intermediate-separating systems ( e.g. PD51 converter).
27
The lead wire of the interface line is presented on the fig. 4. To obtain a
correct transmission, it is necessary to connect lines A and B in parallel
with their equivalents in other devices. The connection must be made
through a shielded wire. The wire shield must be connected to the protection terminal in the nearest possible neighbourhood of the meter
(connect the shield to a single point to the protection terminal).
The GND line serves to the additional protection of the interface line at
long connections. Then, one must connect GND signals of all devices
to the RS-485 bus.
To obtain the connection to the computer, a RS-485 interface card or
an appropriate converter is indispensable, e.g. PD51 or PD10.
The connection way of devices is shown on the fig. 13
DHB-224
DHB-224
DHB-224
Fig. 13. Connection way of the RS-485 interface
The designation of transmission lines for the card in the PC computer
depends on the card producer.
28
6.2. Description of the MODBUS Protocol
Implementation.
The implemented protocol is in accordance with the PI-MBUS-300 Rev
G of Modicon Company specification.
Set of the serial link parameters of DHB-224 meters in MODBUS protocol:
l meter address: 1...247,
l baud rate: 4800, 9600, 19200, 38400,
57600, 115200 bit/s,
l work mode: RTU with a frame in formats: 8N2,
8E1, 8O1, 8N1,
l maximal time to start
the response : 100 ms.
The parameter configuration of the serial link consists on the settlement
of the baud rate (bAUd parameter), device address (Addr parameter),
and the format of the information unit (Prot parameter).
Notice:
Each meter connected to the communication network must have:
l unique address, different from addresses of other devices connec-
ted to the network,
6.3 Description of Applied Functions
Following functions of the MODBUS protocol have been implemented
in the DHB-224 meter:
l 03 – Readout of n-registers.
l 04 – Readout of input n-registers.
l 06 – Write of a single register.
l 16 – Write of n-registers.
l 17 – Identification of the slave device.
29
6.4 Register Map
The register map of the DHB-224 meter is presented below.
Notice:
All given addresses are physical addresses. In some computer programs logical addressing is applied, then addresses must be increased of 1.
Table 8
Range of addreses
4000-4049 integer (16 bits) Value placed in a 16-bit register.
7000-7025 float (32 bits)
7200-7363 float (32 bits)
Value type Description
Value placed in two successive 16bit registers. Registers include the
same data as 32-bit register from
the area 7500. Registers are only for
readout.
Value placed in two successive 16bit registers. Registers include the
same data as 32-bit register from
the area 7600. Registers can be
read out and written.
7500-7512 float (32 bits)
7600-7663 float (32 bits)
30
Value placed in a 32-bit register.
Registers are only for readout.
Value placed in a 32-bit register.
Registers can be read out and
written.
6.5. Registers for Write and Readout
Range DescriptionSymbol
Table 9
The value is placed in
16-bit registers
tYP1
w/r 0...4
Cnt
IndCp
d_P
w/r 1...3600
w/r 1...21
w/r 0...4
4003
4008
4009
write (w)/ readout (r)
Value
0 500U - voltage measurement in the 500 V range
1 100U - voltage measurement in the 100 V range
2 5A - voltage measurement in the 5 A range
3 1A - voltage measurement in the1 A range
4 HoUr -current time
Reserved4001 w/r
Reserved4002 w/r
Measurement time expressed in seconds. This time
defines the averaging time of the measured value.
The displayed value is the mean value calculated
from the Cnt1 period.
Reserved4004 w/r
Reserved4005 w/r
Reserved4006 w/r
Reserved4007 w/r
Number of points of the individual characteristic.
For the value 1, the individual characteristic is switched off. Segments of the individual characteristic
are defined by parameters Xn and Yn, where n
– point number..
Minimal position of the decimal point when displaying the measured value.
Value
0 0.0000
1 00.000
Input type4000
Description
31
4010
4011
4012
4013
4014
4015
CoLdo
CoLbE
CoLUp
P_a1
tyP1
dLY1
w/r 0...2
w/r 0...2
w/r 0...2
w/r 0, 1
w/r 0...5
w/r 0...900
2 000.00
3 0000.0
4 00000
Display colour when the displayed value is less
than coLLo
Value
0 red
1 green
2 orange
Display colour when the displayed value is higher
than coLLo and less than CoLHi
Value
0 red
1 green
2 orange
Display colour when the displayed value is higher
than coLHi
Value
0 red
1 green
2 orange
Input quantity controlling the alarm
0 Main input
1 Clock
Type of alarm 1 (description - fig. 6)
Value
0 n-on
1 n-off
2 on
3 off
4 h-on
5 h-off
Delay of alarm 1 (in seconds)
Description
Description
Description
DescriptionValue
Description
32
4016
4017
4018
4019
4020
4021
4022
4023
LEd1
P_a2
tyP2
dLY2
LEd2
P_a3
tyP3
dLY3
w/r 0...1
w/r 0, 1
w/r 0...5
w/r 0...900
w/r 0...1
w/r 0, 1
w/r 0...5
w/r 0...900
Support of alarm 1 signalling
Value
0 Support switched off
1 Support switched on
Input quantity controlling the alarm
0 Main input
1 Clock
Type of alarm 2 (description - fig. 6)
Value
0 n-on
1 n-off
2 on
3 off
4 h-on
5 h-off
Delay of alarm 2 (in seconds)
Support of alarm 2 signalling
Value
0 Support switched off
1 Support switched on
Input quantity controlling the alarm
0 Main input
1 Clock
Type of alarm 3 (description - fig. 6)
Wartość
0 n-on
1 n-off
2 on
3 off
4 h-on
5 h-off
Delay of alarm 3 (in seconds)
Descritpion
DescriptionValue
Description
Description
DescriptionValue
Opis
33
4024
4025
4026
4027
4028
4029
4030
4031
LEd3
P_a4
tyP4
dLY4
LEd4
P_an
tYPa
bAud
w/r 0...1
w/r 0, 1
w/r 0...5
w/r 0...900
w/r 0...1
w/r 0, 1
w/r 0...2
w/r 0...5
Support of alarm 3 signalling
Value
0 Support switched off
1 Support switched on
Input quantity controlling the alarm
0 Main input
1 Clock
Type of alarm 4 (description - fig. 6)
Value
0 n-on
1 n-off
2 on
3 off
4 h-on
5 h-off
Delay of alarm 4 (in seconds)
Support of alarm 4 signalling
Value
0 Support switched off
1 Support switched on
Input quantity, which the analog output has to
react on.
Value
0 Main input
1 Clock
Type of analog output
Value
0 Voltage input 0...10 V
1 Current input 0...20 mA
2 Current input 4...20 mA
Value
0 4800 bit/s
1 9600 bit/s
2 19200 bit/s
Description
DescriptionValue
Description
Description
Description
Description
Baud rate
Description
34
4032
4033
4034
4039 z/o 0, 1
...
4048 Status1 z/o
prot
Addr
sAvE
SEt
SEc
hour
unit
...
z/o 0...3
z/o 0...247
z/o 0...1
z/o 0...1
z/o 0...6000
z/o 0...2359
z/o 0, 1
... ...
0...65535
3 38400 bit/s
4 57600 bit/s
5 115200 bit/s
Value
0 RTU 8N2
1 RTU 8E1
2 RTU 8O1
3 RTU 8N1
Meter address. The write of the value 0 causes the
inerface switching off.
Update transmission parameters. Causes the application of introduced RS-485 interface settings.
Write of standard parameters4035
Value
0 without changes
1 set standard parameters
Value
0 without password
... Entry in parameters preceded by a
request about the password
This parameter occurs in the ggmm format,where:
gg - means hours,
mm – means minutes.
The introduction of a wrong hour will cause the setting 23, however the introduction of wrong minutes
will generate the setting of the value 59.
Value
0 Highlighting switched off
1 Highlighting switched on
Extreme values’ deletion. Writing in “1” to the
register will cause the deletion of the minimum and
Reserved
Meter status. Describes the current state of the
meter. Successive bits present data of the event.
The bit set on 1 means, that the event took place.
Events can be only erased..
Bit 15 Break of the supply
Bit 14 Re-set of the RTC clock.
Transmission mode
Password for parameters4036
Current time4037
Switch on/off the unit backlight4038
maximum values
Description
Description
Description
Description
35
4049 Status2 w/r
Bit 13 Not used
Bit 12 Lack of communication with data memory
Bit 11 Wrong settings
Bit 10 Manufacturer’s setting restored
Bit 9 Lack of measured values in data memory
Bit 8 Not used
Bit 7 Output plate was detected
Bit 6 Output plate - error or lack of calibration
Bit 5 Not used
Bit 4 Not used
Bit 3 Wrong configuration of the individual character.
Bit 2 Not used
Bit 1 Not used
Bit 0 Not used
Meter status. Describes the current state of the
meter. Successive bits present data of the event.
The bit set on 1 means, that the event took place.
Events can be only deleted.
Bit 15 Not used
Bit 14 Not used
Bit 13 Not used
Bit 12 Not used
Bit 11 Not used
Bit 10 Not used
Bit 9 Not used
Bit 8 Not used
Bit 7 LED4 - Signalling of alarm No.4
Bit 6 LED3 - Signalling of alarm No.3
Bit 5 LED2 - Signalling of alarm No.2
Bit 4 LED1 - Signalling of alarm No.1
Bit 3 Status of the alarm relay No.4
Bit 2 Status of the alarm relay No.3
Bit 1 Status of the alarm relay No.2
Bit 0 Status of the alarm relay No.1
36
write
(w)
Sym-
/rea-
bol
The value is placed in two successive
16-bit registers. These registers include
the same data as 32-bit registers from
the area 7600.
The value is placed in 32-bit registers
7200 7600
7202 7601
7204 7602
7206 7603
7208 7604
7210 7605
7212 7606
7214 7607
7216 7608
7218 7609
7220 7610
7222 7611
7224 7612
7226 7613
7228 7614 w/r -19999...99999 Reserved
7230 7615 w/r -19999...99999 Reserved
7232 7616 w/r -19999...99999 Reserved
7234 7617 w/r -19999...99999 Reserved
7236 7618 w/r -19999...99999 Reserved
7238 7619 w/r -19999...99999 Reserved
coLLo
coLHI
ovrLo
ovrHI
PrL 1
PrH 1
PrL 2
PrH 2
PrL 3
PrH 3
PrL 4
PrH 4
AnL
AnH
Range Description
dout
(r)
w/r -19999...99999
w/r -19999...99999
w/r -19999...99999 Lower threshold of the display narrowing
w/r -19999...99999 Upper threshold of the display narrowing
w/r -19999...99999 Lower threshold of alarm 1
w/r -19999...99999 Upper threshold of alarm 1
w/r -19999...99999 Lower threshold of alarm 2
w/r -19999...99999 Upper threshold of alarm 2
w/r -19999...99999 Lower threshold of alarm 3
w/r -19999...99999 Upper threshold of alarm 3
w/r -19999...99999 Lower threshold of alarm 4
w/r -19999...99999 Upper threshold of alarm 4
w/r -19999...99999 Lower threshold of analog output
w/r -19999...99999 Upper threshold of analog output
Lower threshold of the display colour change
Upper threshold of the display colour
change
Table 10
37
7240 7620 w/r -19999...99999 Reserved
7242 7621 w/r -19999...99999 Reserved
7244 7622
7246 7623
7248 7624
7250 7625
7252 7626
7254 7627
7256 7628
7258 7629
7260 7630
7262 7631
7264 7632
7266 7633
7268 7634
7270 7635
7272 7636
7274 7637
7276 7638
7278 7639
7280 7640
7282 7641
7284 7642
7286 7643
7288 7644
H1
w/r -19999...99999
Y1
w/r -19999...99999 Expected value for the point No. 1.
H2
w/r -19999...99999
Y2
w/r -19999...99999 Expected value for the point No. 2.
H3
w/r -19999...99999
Y3
w/r -19999...99999 Expected value for the point No. 3.
H4
w/r -19999...99999
Y4
w/r -19999...99999 Expected value for the point No. 4.
H5
w/r -19999...99999
Y5
w/r -19999...99999 Expected value for the point No. 5.
H6
w/r -19999...99999
Y6
w/r -19999...99999 Expected value for the point No. 6.
H7
w/r -19999...99999
Y7
w/r -19999...99999 Expected value for the point No. 7.
H8
w/r -19999...99999
Y8
w/r -19999...99999 Expected value for the point No. 8.
H9
w/r -19999...99999
Y9
w/r -19999...99999 Expected value for the point No. 9.
H10
w/r -19999...99999
Y10
w/r -19999...99999 Expected value for the point No. 10.
H11
w/r -19999...99999
Y11
w/r -19999...99999 Expected value for the point No. 11.
H12
w/r -19999...99999
Point of the individual charachteristic
Point No.1.
Point of the individual charachteristic
Point No. 2.
Point of the individual charachteristic
Point No. 3.
Point of the individual charachteristic
Point No.4.
Point of the individual charachteristic
Point No. 5.
Point of the individual charachteristic
Point No. 6.
Point of the individual charachteristic
Point No. 7.
Point of the individual charachteristic
Point No. 8.
Point of the individual charachteristic
Point No. 9.
Point of the individual charachteristic
Point No.10.
Point of the individual charachteristic
Point No. 11.
Point of the individual charachteristic
Point No. 12.
38
7290 7645
7292 7646
7294 7647
7296 7648
7298 7649
7300 7650
7302 7651
7304 7652
7306 7653
7308 7654
7310 7655
7312 7656
7314 7657
7316 7658
7318 7659
7320 7660
7322 7661
7324 7662
7326 7663
Y12
w/r -19999...99999 Expected value for the point No. 12.
H13
w/r -19999...99999
Y13
w/r -19999...99999 Expected value for the point No. 13.
H14
w/r -19999...99999
Y14
w/r -19999...99999 Expected value for the point No. 14.
H15
w/r -19999...99999
Y15
w/r -19999...99999 Expected value for the point No. 15.
H16
w/r -19999...99999
Y16
w/r -19999...99999 Expected value for the point No. 16.
H17
w/r -19999...99999
Y17
w/r -19999...99999 Expected value for the point No. 17.
H18
w/r -19999...99999
Y18
w/r -19999...99999 Expected value for the point No. 18.
H19
w/r -19999...99999
Y19
w/r -19999...99999 Expected value for the point No. 19.
H20
w/r -19999...99999
Y20
w/r -19999...99999 Expected value for the point No. 20.
H21
w/r -19999...99999
Y21
w/r -19999...99999 Expected value for the point No. 21.
Point of the individual charachteristic
Point No. 13.
Point of the individual charachteristic
Point No. 14.
Point of the individual charachteristic
Point No. 15.
Point of the individual charachteristic
Point No. 16.
Point of the individual charachteristic
Point No. 17.
Point of the individual charachteristic
Point No. 18.
Point of the individual charachteristic
Point No. 19.
Point of the individual charachteristic
Point No. 20.
Point of the individual charachteristic
Point No. 21.
39
6.6. Registers only for Readout
Write
(w)
Name
The value is placed in 32-bit
The value placed In two suc-
cessive 16-bit registers. These
7000 7500 Identifier O —
7002 7501 Status O —
7004 7502 Control O %
7006 7503 Minimum O —
7008 7504 Maximum O —
7010 7505
7012 7506 O — Current time
7014 7507 O Reserved
7016 7508 O —
7018 7509 O Reserved
7020 7510 O
7022 7511 O Reserved
7024 7512 O Reserved
registers
registers include the same data as
32-bit registers from the area 7500
Displayed
value
/
Unit Name of the quantity
rea-
dout
(r)
Constant identifying the device.
The value 187 means the DHB-224
Status is register describing the current
state of the meter
It is a register defining the control of the
analog outpu
Minimal value of the currently displayed
value
Maximal value of the currently displayed value
O — Currently displayed value
Password of analog-to-digital transducer
Measured value – not recalculated
In relation to the individual characteristic,
a.s.l.
Table 11
40
7. ERROR CODES
After switching the meter on to the network or during the work, messages about errors can appear.
Messages about errors and their reasons are presented below.
Table 12
Error message Description
Overflow of the upper value of the measuring range value
or the programmed indication range.
Overflow of the lower value of the measuring range value
or the programmed indication range.
ErFrt
ErPar
ErdEF
ErFPL
Communication error with the data memory. One must
contact the service workshop.
Parameter error. Wrong configuration data. Manufacturer’s settings will be restored after pressing any push.
Default settings have been restored. One must press any
push to transit to a normal work.
Error of measured values stored by the meter (measured
value, maximal and minimal values). One must press any
push to transit to a normal work. After pressing the push
during 1 sec, the ErdEF message will be displayed.
ErCAo
ErCOd
Lack of calibration of analog outputs. One must press any
push to transit to the normal work. Analog outputs will not
be serviced. One must contact the service workshop.
Erroneous access code to meter parameters. The error
appears in the moment of giving a wrong access code to
meter parameters (only in case when meter parameters
are protected by a password).
41
8. TECHNICAL DATA
Measuring ranges.
Table 13
Kind of input Indication of range class
500 V -600...600 V 0.1% of the range
100 V -130...130 V 0.1% of the range
5 A -6...6 A 0.1% of the range ± 5 mA
1 A -2...2 A 0.1% of the range ± 1 mA
Current time 00.00...23.59 0.5 seconds/24h
Relay outputs: - relays, NO voltageless contacts
load capacity 250 V~/0.5A~
- relays, switched voltageless contacts
load capacity 250 V~/0.5A~ (DHB-224)
Analog outputs (DHB-224): - programmable, current 0/4...20 mA
load resistance £ 500 W
- programmable, current 0..10 V
load resistance ³ 500 W
Alarm output OC
(DHB-224): output of OC type, passive npn,
30 V d.c./30 mA.
Serial interface: RS-485 (DHB-224)
Transmission protocol: MODBUS RTU
Error of analog output: 0.2% of the set range.
Protection grade ensured
by the casing:
frontal side IP65
terminal side IP10
42
Weight: < 0.2 kg
Dimensions: 96 ´ 48 ´ 93 mm
Reference Conditions and Rated
Operating conditions:
- supply voltage 85..253 V d.c./a.c. 40..400Hz
or 20..40 V a.c. (40...400 Hz),
20...60 V d.c.
40..400Hz
- ambient temperature -25..23..+55oC
- storage temperature -33..+70oC
- reltive air humidity 25..95% (inadmissible vapour
condensation)
- work position any
Additional errors:
- from temperature changes: for analog inputs and outputs
50% of the class/10 K
Standards fulfilled by the meter:
Electromagnetic compatibility:
l Noise immunity acc. to EN 61000-6-2
l Noise emission acc. to EN 61000-6-4
Safety requirements:
Acc. to the EN61010-1 standard:
l isolation between circuits: basic,
l installation category: III,
l pollution level: 2,
l maximal phase-to-earth working voltage:
- 300 V for the supply circuit,
- for the measuring input 600 V for analog input signals
– cat. II (300 V – cat. III),
- 50 V for remaining circuits.
l altitiude above sea level < 2000 m.
43
9. MAINTENANCE AND TECHNICAL
SERVICE
In the case of any query in relation to unit operation or malfunction,
please contact the CIRCUTOR, SA Technical Support Service.
Technical Assistance Service
Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona)
Tel: 902 449 459 ( España) / +34 937 452 919 (outside of Spain)
email: sat@circutor.es
44
10. GUARANTEE
CIRCUTOR guarantees its products against any manufacturing defect
for two years after the delivery of the units.
• No returns will be accepted and no unit will be
repaired or replaced if it is not accompanied by a
report indicating the defect detected or the reason
for the return.
•The guarantee will be void if the units has been
improperly used or the storage, installation and
maintenance instructions listed in this manual have
not been followed. “Improper usage” is defined as
any operating or storage condition contrary to the
national electrical code or that surpasses the limits
indicated in the technical and environmental features of this manual.
• CIRCUTOR accepts no liability due to the possible
damage to the unit or other parts of the installation,
nor will it cover any possible sanctions derived from
a possible failure, improper installation or “improper
usage” of the unit. Consequently, this guarantee
does not apply to failures occurring in the following
cases:
- Overvoltages and/or electrical disturbances in the
supply;
- Water, if the product does not have the appropriate IP classification;
- Poor ventilation and/or excessive temperatures;
- Improper installation and/or lack of maintenance;
- Buyer repairs or modifications without the manufacturer’s authorisation.
CIRCUTOR will repair or replace any defective factory product returned during the guarantee period.
45
CIRCUTOR, SA
Vial Sant Jordi, s/n
08232 -Viladecavalls (Barcelona)
Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14
www.circutor.es central@circutor.es
46
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