digital slave clocks of the zwc type - Time-Net

digital slave clocks of the zwc type - Time-Net
Ltd.
AUTOMATICS AND PRECISE APPARATUS MANUFACTURING PLANT
PL 94-104 LODZ 135 Obywatelska Street TEL/FAX + 48 42 689 02 41
firma@time-net.com.pl
http://www.time-net.com.pl
DIGITAL SLAVE CLOCKS OF THE ZWC TYPE
Slave clocks type ZWC are designed for
precise current time indication: hours and minutes
(version “M”) or hours, minutes and seconds
(version “S”) in 24-hour cycle, for indoor
installation e.g. in banks, offices, schools,
hospitals, switching stations, dispatch rooms etc.
Version /U can be installed outdoor under roofing
or indoor in premises with increased dustiness.
Clocks can be a one-sided version “J” or a two-sided version “P/Z”. For the one-sided version each clock
consist of the main clock and the wall hanger assembly. For the two-sided version each clock consist of the main
clock “Z”, the auxiliary clock “P” and the ceiling hanger or side hanger assembly. The housings for the main and
auxiliary clock are identical. They have catches at the back for fixing them on the hanger. Such construction
enables easy unhooking the clock for maintenance purposes from the hanger assembly, which is permanently
fixed with screws to the wall or to the ceiling.
In the standard option the clocks are equipped with segment diode display (LED) with the optional digit height
45, 57, 100 and 125 mm, enabling the indications read-out from the distance from 15 to 50 m. On request
versions with even bigger digits are also available.
!
!
!
!
Clocks can operate autonomously, or they can be equipped with one of the following control
or synchronizing inputs:
Line analog input LA adapted to receive polarized impulses ±24V changing the clock indication one
minute forward. This input enables to connect the clock to the line of analog clocks (clocks with hands),
controlled by a master clock, e.g. type MC-20, MC-21 or other.
Line digital input L adapted to receive polarized packets of impulses ±24V sent once every second, which
carry the full information on the current time. This input enables to connect the clock to the digital line,
controlled by a master clock, e.g. type MC-20.
Synchronizing input L4 , e.g. link of RS-485 type. This input enables connecting the clock to the network
of slave digital clocks, controlled e.g. from MC-21 master clock.
Input for connecting signal from the external antenna DCF-77 (designation “A”) or GPS
(designation “G”).
In case of using analog line input the clock does not measure the time independently, but operates as the
counter of impulses sent by the master clock. In case of the other inputs listed above, the clock measures the time
independently, and its indications are synchronized with the received external information. Such solutions
guarantee the high reliability of operation, the identity of indication for all clocks connected to the network, and the
immunity to external disturbances.
AUTOMATICS AND PRECISE APPARATUS MANUFACTURING PLANT
PL 94-104 LODZ 135 Obywatelska Street TEL/FAX + 48 42 689 02 41
firma@time-net.com.pl
http://www.time-net.com.pl
Ltd.
Additional options and equipment for clocks (to be agreed on at the ordering stage):
!
!
!
!
!
!
!
!
!
!
!
Alternate displaying of time and date (designation /D), time and temperature (designation /T), time and
humidity (designation /W) or time and pressure (designation /H). As a standard, the time is displayed for the
duration of 8 seconds, and the second parameter is displayed for the duration of 2 seconds. For the version
with designation “/D/T” alternately three parameters can also be displayed, e.g. time, date and temperature
in the cycle: 10 seconds (time) / 5 seconds (date) / 5 seconds (temperature).
Color of display : red, green or yellow.
Adjustment of the display brightness (designation /J).
Color of housing : the standard colour is black.
Build-in battery of accumulators supporting operation of the time standard in case of the voltage supply
break for the duration of at least 24 hours (designation /R24), 48 hours (/R48), or one year (/R1J). When the
clock is supplied from the accumulators, its display is switched off.
Build-in function of stopper counting out forward or backward, with the possibility of controlling its operation
through the external contacts or by voltage impulses 24 V.
Build-in relay for synchronization of external devices (designation /S) or for controlling external devices
such as school or church bells, technological processes, time signal impulses for wire broadcasting system
etc. (designation /P). Closing relay contacts may also signalize that the count-out threshold in the build-in
stopper has been exceeded.
Build-in link RS-232 (designation /RS) or RS-485 (designation /R4) for time synchronization in singular PC
computers or computer networks. In the clock operation manual the transmission protocol enabling the
user to make use of this link in his own applications is described. At the request of the purchaser together
with the clocks relevant software working in DOS or WINDOWS 3.x/9x/NT/2000/XP environment can be
delivered.
Build-in controller for analog hand-type clocks with minute indication (designation /C), enabling controlling
the operation of maximum 10 clocks connected in the network. These clocks should be adapted for
controlling impulses with amplitude ±12V. Data of these clocks are available in the separate information
card.
Build-in outputs with RS-485 link (designation /N) for controlling the time network with connected slave
digital clocks.
Build-in infra-red receiver for the remote control, (designation /Q), enabling remote changing of clock
settings. This option is particularly useful in case, when the clock is installed in not easily accessible place
(e.g. under the high ceiling) and there is the necessity for the periodic change of settings for generated
alarms (e.g. school bells).
Technical data of clocks parameters dependant on the digit dimensions :
Parameter
ZWC-45
ZWC-57
ZWC-100
ZWC-125
Power consumption for one-sided clock
Power consumption for two-sided clock
Dimensions of digits for hours and minutes
(days and months)
Dimensions of digits for seconds (year)
Readability of indications
Dimensions of housing (see the drawing - last
page)
Weight of one-sided clock with hanger
assembly
Weight of two-sided clock with hanger
assembly
12W*
17W*
15W*
19W*
22W*
30W*
28W*
40W*
45x27
57x32
100x60
125x76
30x18
15m
38x22
20m
57x32
40m
100x57
50m
256x97x97
315x120x105 560x215x155 760x285x190
2,5kg
2,8kg
8kg
14kg
5kg
6,5kg
22kg
33,8kg
*) The value of the power consumption might change for clocks with displays in color different then the red.
AUTOMATICS AND PRECISE APPARATUS MANUFACTURING PLANT
PL 94-104 LODZ 135 Obywatelska Street TEL/FAX + 48 42 689 02 41
firma@time-net.com.pl
http://www.time-net.com.pl
Ltd.
Technical data of clocks common parameters:
Basic supply
Protection class
Reserve supply without RTC system
Reserve supply with RTC system – in preparation
Duration of time standard support in case of basic supply
break
Time of full charging of accumulators
Automatic disconnection of accumulators
Precision of indication in the whole operating temperature
range:
when operating autonomously
when operating with antenna
when controlled from master clock
Display brightness adjustment /J
Controlling signal for version L
230V± 10%, 50Hz± 2%
I acc. to EN 61140:2002 standard
Build-in accumulator 4.8V /0.7Ah
Build-in accumulator 3,6V/60mAh
Without RTC system : approximately 24h* / with RTC
system : approximately one year
Minimum 60 hours
Without RTC system at Uakum.: approximately 4.2V/ with
RTC system: no such function
±1,5x10-5 (appr. ±1,3s / 24h)
Equal to atomic time standard precision.
Equal to master clock precision.
Discrete , 16 levels.
±24V++10%--25% (digital, containing groups of
polarized impulses, transmitted serially through twoconductor controlling line)
Alternate impulses with amplitude ±24V+10%-25% and
duration 1s, appearing every one minute in normal mode
or every one second in accelerated mode.
Controlling signal for version LA
Maximum current consumption from controlling line for
version L and LA
Maximum allowed length and resistance of controlling line
for version L and LA
Minimum voltage of controlling signal for version
L and LA
Maximum allowed cable length for RS-485 interface
Maximum number of standard RS-485 receivers
Type of conductors for creating network with RS-485
15mA
1500m / 300?
±18V
1200m (recommended 500)
31 receivers with load capacity (2x0,5mA)
One pair of telephone-type stranded wire, diameter of
conductor 0,5mm2
±12V
0,13A (10 analog clocks)
2A, 250V~ (resistance-type load)
Depending on ordered software.
Amplitude of impulses for analog clocks controller /C
Load capacity for analog clocks controller /C
Load capacity of relay output for version /S and /P
Mode of operation of relay output for version /S and /P
Range and resolution for measurement and indication of
-40° C ¸ 100° C/1° C
temperature /T
*) Or 48 hours for clocks with analog output LA
Remark: some parameters refer to additional / optional functions.
Ambient conditions
Protection class of housing
Temperature range
Pressure range
Humidity range
Maximum allowed temperature
change ratio
Insolation
Ventilation
Version for indoor installation
IP40 acc. to EN 60529 standard
From +5°C to +40°C
From 86 to 106kPa
From 20% to 80%
Technical data of GPS antenna:
- Weight:
40g
- Measurements:
38x43x13
- Protection class
IP 65 acc. to EN 60529
- Standard antenna cable length: 5m
(concentric cable type RG174U)
- Supply:
3V-, 30mA
- Operating frequency:
1575,42MHz
- Operating temperature range:
-40C to +100C
Version for outdoor installation
IP50 acc. to EN 60529 standard
From -20°C to +55°C
From 86 to 106kPa
From 5% to 95%
5°C / h
No direct sunlight
Natural
Technical data of DCF antenna:
- Measurements:
28 x 115
- Protection class:
IP 54 acc. EN 60529
- Supply:
10 mA DC
- Operating frequency:
77.5 kHz
- Operating temperature
range:
-20C to +60C
- Standard antenna cable
2
length
2m (OMY 2x0,75mm )
Ltd.
AUTOMATICS AND PRECISE APPARATUS MANUFACTURING PLANT
PL 94-104 LODZ 135 Obywatelska Street TEL/FAX + 48 42 689 02 41
firma@time-net.com.pl
http://www.time-net.com.pl
Determination of clock type when ordering : ZWC-A;B;C;D/E.../ e.g.:
ZWC-57SLP/Z/D/C slave digital clock with indication of seconds, with line digital synchronizing input, two-sided,
displaying alternately time and date, with built-in controller for analog clocks, where the subsequent fields A,
B, C, D and E mean:
A
- height of digits in mm (standard heights are : 45, 57, 100 or 125)
B
- for 4-digit clock with minute indication letter „M”, and for digital 6-digit clock with indication of seconds letter „S”
C
- type of synchronizing input for time synchronizing:
L
- line digital input for using with MC-20 master clock.
LA
- analog line input for using with analog clocks network.
L4
- input of RS-485 type for using with ZWC clocks, with additional function /N or with master clock e.g.
MC-21.
A
- input for using with DCF-77 antenna.
G
- input for using with GPS antenna.
D
- for one-sided clock letter „J”, and for two-sided clock letters „P/Z” which mean respectively :
Z main supplying clock,
P auxiliary clock.
E
- this designation determines the additional function (there might be several additional functions in one clock best
is to agree on this issue at the ordering stage with the manufacturer or the distributor).
/U - version for outdoor installation under the roof.
/D - alternate time and date display.
/T - alternate time and temperature display.
/W - alternate time and humidity display in preparation.
/H - alternate time and pressure display in preparation
/J - function of display brightness adjustment.
/R24
- built-in accumulator supporting time standard operation for 24 hours (without function of time
display the display is switched off).
/R48
- built-in accumulator supporting time standard operation for 48 hours (without function of time
display the display is switched off) only for version with L-type input.
/R1J
- built-in accumulator supporting time standard operation for 48 hours (without function of time
display the display is switched off) in preparation.
/S - build-in relay for synchronization of industrial devices (the pulse/switching program shall be agreed with
the manufacturer).
/P - build-in relay for controlling external devices (e.g. school bells).
/RS - build-in RS-232C interface for communication with the PC computer.
/R4 - build-in RS-484 interface for communication with the PC computer.
/C - build-in controller for analog hand-type clocks with indication of minutes.
/N - build-in output RS-485 for controlling time network equipped with digital slave clocks.
/Q - build-in infra-red receiver and enclosed remote control pilot.
View and overall measurements housing for clocks in one-sided and two-sided versions.
Dimension
A
B
C
H
D
E
F
G
K
ZWC-45
255
65
95
92
267
16
16
975
136
ZWC-57
315
70
105
118
326
16
16
975
176
ZWC-100
555
80
155
214
567
25
25
1440
300
ZWC-125
760
100
190
282
772
25
25
1440
400
There are available two types of hanger
assembly for two-sided clocks:
“Side” hanger fixed to the wall by means
·
of screws.
„Ceiling hanger”, fixed to the ceiling.
·
(dimension H in the table above gives
the distance between the two stakes
fixing the hanger to the ceiling).
Remarks:
Terminal block located on the clock's hanger can have, depending on number of selected additional functions, from 6 up
2
to 14 terminals adapted for cables with the maximum cross-section of wires 2,5mm .
It is possible to apply additional GPS-antenna high frequency cable extension with maximum length 15m.
2
The DCF-77 antenna cable can be extended by maximum 25m with cable (2x0,75mm ) without need for any additional
actions or equipment.
The manufacturer reserves the right for introducing changes in construction of this product.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising