Lumel P21Z Series User manual

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PROGRAMMABLE TRANSDUCER
OF AC CURRENT
AND AC VOLTAGE SIGNALS
AND FREQUENCY
P21Z TYPE
USER’S MANUAL

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Contents
1. APPLICATION.........................................................................5
2. TRANSDUCER SET...................................................................5
3. BASIC REQUIREMENTS AND OPERATIONAL SAFETY .........................6
4. INSTALLATION .......................................................................7
4.1 Mounting .....................................................................7
4.2 Diagrams of external connections .......................................8
5. OPERATION......................................................................... 10
5.1 Transducer configuration with eCon software........................ 12
5.2 Register map (for version with RS-485)............................... 12
5.3 Manufacturer’s parameters ............................................. 16
6. TECHNICAL DATA.................................................................. 18
7. ORDERING CODE .................................................................. 21

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1. APPLICATION
P21Z transducers are used for converting one parameter:
a.c. voltage, a.c. current or frequency into a standardized direct
current signal, direct voltage signal or digital signal available
through RS485 interface. The transducers are designed also
to work with voltage and current transformers.
P21Z transducer may be configured with PD14 pro-
grammer. This programmer and eCon software enable users
to program the following settings:
measurement averaging time,
converting characteristics
value of output signal when limit value are exceeded,
constraining output signal,
transmission parameters of RS485.
The transducer has galvanic isolation between the indi-
vidual blocks of:
power
measurement input,
output and PD14 programmer.
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2. TRANSDUCER SET
The transducer set includes:
P21Z transducer 1 pc
user’s manual 1 pc
guarantee card 1 pc
cap for programmer socket 1 pc
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3. BASIC REQUIREMENTS
AND OPERATIONAL SAFETY
The operational safety of the transducer is compliant
with the requirements of EN 61010-1 standard
The meaning
of the following symbol: - Attention! Danger!
Observations Concerning the Operational Safety:
All operations concerning transport, installation, and com-
missioning as well as maintenance, must be carried out
by qualified, skilled personnel, and national regulations
for the prevention of accidents must be observed.
Before switching the transducer on, one must check
the correctness of connections to the network.
Before removing the transducer housing, one must switch
the supply off and disconnect measuring circuits.
The removal of the transducer housing during the guaran-
tee contract period may cause its cancellation.
The P21Z transducer is destined to be installed and used
in industrial electromagnetic environment conditions.
One must remember that in the building installation,
a switch or a circuit-breaker should be installed.
This switch should be located near the device, easy
accessible by the operator, and suitably marked.
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4. INSTALLATION
4.1 Mounting
P21Z transducers are designed for mounting
on a 35 mm according to PN-EN 60715. Dimensions and moun-
ting method are presented in Fig. 1.
Fig 1. Dimensions and mounting of the transducer.
Connection of
PD14
programmer

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4.2 Diagrams of external connections
The transmitter transducer has a detachable
terminal strip with screw terminals that enable user to connect
external power supply and output cables with cross section
up to 2.5 mm2. Input signals shall be connected with wires
of a maximum diameter of 1.5 mm2to fixed screw terminals.
Direct measurement
of voltage Indirect measurement with
voltage transformer
Direct measurement of
current
Indirect measurement with
current transformer
I1I2I1I2
I1I2I1I2
I1I2I1I2
I1I2I1I2

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Fig. 2. Electric connections of P21Z inputs.
Direct measurement
of frequency Indirect measurement
of frequency with voltage
transformer
I1I2I1I2
I1I2I1I2
a) analog
output
b) interface
RS-485
Fig. 3. Electric connections of P21Z power supply
and output.
supply analog
output supply

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5. OPERATION
After the transducer is switched on, its Status LED
should illuminate in red (transducer initialization), then it should
turn green (normal operation).
Status LED of the transducer:
when illuminated in green – normal
operation;
when illuminated in red – incorrect
operational parameters; re-configure
the transducer;
when flashes in red – no calibration
or damaged non-volatile memory;
transduce should be returned to the
manufacturer;
LEDs installed only in version with RS485
interface:
RxD LED is on – data receipt;
TxD LED is on – data transmission.
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Fig. 4. P21Z transducer view.
Data entry into the register is confirmed by a short illu-
mination of the Status LED in red.
Before the required number of correct measurements
(according to Table 1) is achieved, the device displays arithme-
tic mean from the completed measurements. Subsequent me-
asurements are added applying the walking window principle,
i.e. the “oldest” measurement is deleted and replaced
by the most recent one. When values outside the measuring ran-
ge are measured, the device indicates it and correct measure-
ments are counted from the beginning. Default time is set to 1s.

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Table 1
Averaging
time
Number
of averaged
measurements
Refreshing processed value
(time of one
measurement)
0.5 s 1 every 0.5 s
1 s 2 every 0.5 s
3 s 6 every 0.5 s
5 s 10 every 0.5 s
10 s 20 every 0.5 s
15 s 30 every 0.5 s
30 s 60 every 0.5 s
1 min 100 every 0.6 s
2 min 100 every 1.21 s
5 min 100 every 3 s
7 min 100 every 4.2 s
12 min 100 every 6 s
15 min 100 every 9.1 s
The transducer may be programmed with analog
output values (values of the output register in RS-485 design)
at exceeded input measurement range. The following para-
meters are adjustable: expected output value when lower
limit is exceeded (Out-d) for values below the lower limit (In-d)
and expected output value when upper limit is exceeded (Out-u)
for values above the upper limit (In-u) – the values are presen-
ted in Table 3.

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5.1 Transducer configuration with eCon software
Configuration of P21Z transducers is performed with
eCon software available free of charge at www.lumel.com.pl.
Detailed description of parameter configuration is presented
in the Manual for Transducer configuration with eCon software.
Transducers with RS-485 interface may be configured directly
via the interface. When configuring the transducer via PD14
programmer, disconnect RS-485 interface.
5.2 Register map (for version with RS-485)
Table 2
Register
address
Opera-
tions
Range Decription
4000 RW 0..12 Averaging time: 0 – 0.5 s; 1 – 1 s;
2- 3 s; 3 – 5 s; 4 – 10 s; 5 - 15 s; 6 - 30 s;
7 - 1 min; 8 – 2 min s; 9 - 5 min;
10 – 7 min; 11 – 12 min; 12 – 15 min;
4001 RW 0..2 Continuous output: 0 - normal work,
1 – value from register7602,
2- value from register 7603
4002 RW 0..3 Continuous output – Operation with
exceeded limit values and type of measu-
red signal:
0 – inactivated, 1 – activated,
4003 RW 1..247 Address in MODBUS network
4004 RW 0..3 Transmission mode: 0->8n2, 1->8e1,2-
>8o1, 3->8n1

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4005 RW 0..2 Transmission mode: 0->4800, 1->9600,
2->19200
4006 RW 0, 1 Change MODBUS transmission parame-
ters: 1 - change
4007 R 0...65535 Status
4008 R 0 reserved
4009 R 0..65535 reserved
4010 R 0..65535 reserved
4011 R 0..65535 Software version
Bit-15 Uncalibrated transducer
0 – transducer measuring input calibrated
1 – signal of uncalibrated transducer input
Bit-14 Error of transducer parameter values
0 – transducer parameters correct
1 – signaling of an incorrect transducer parameter readout
Bit – 13 Signaling of an range overflow
0 – normal work
1 – range overflow
Non-calibrated transducer Error of transducer parameter values Range overflow Averaging state Reserved Reserved Reserved Reserved Reserved Transducer input code Transducer output code
X X X X X X X X X XXXX XXX
15bity 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
MSB LSB
Status register description

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Bit-12 Averaging
0 – full measurement averaging time expired
1 – full measurement averaging time not expired
Bits- 11 – 7 Reserved
Bits - 6 - 3 Measuring input
Bit 6 Bit 5 Bit 4 Bit 3 Meaning
0 0 0 0 reserved
0 0 0 1 100 V a.c.
0 0 1 0 250 V a.c.
0 0 1 1 400 V a.c.
0 1 0 0 1 A a.c.
0 1 0 1 5 A a.c.
0 1 1 0 20...500 Hz
Bity-2 - 0 Output
Bit 2 Bit 1 Bit 0 Meaning
0 0 0 reserved
0 0 1 current output 0(4)…20 mA
0 1 0 current output 0(4)…20 mA
0 1 1 voltage output 0…10 V
1 0 0 RS-485

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Table 3
Regi-
ster
ad-
dress
2x16
bit
Regi-
ster
ad-
dress
32 bit
Operations
Description
7200 7600 RW Continuous output – lower input value (x1)
7202 7601 RW Continuous output – upper input value (x2)
7204 7602 RW Continuous output – lower output value (y1)
7206 7603 RW Continuous output – upper output value (y2)
7208 7604 RW Input lower overflow In-d
7210 7605 RW Input upper overflow In-u
7212 7606 RW Expected value on the output Out-d at lower
overflow In-d
7214 7607 RW Expected value on the output Out-u at upper
overflow In-u
7216 7608 R
Value measured, taking into account regi-
sters 7604 and 7605
reg. 7608 = reg. 7604 if reg. 7609 register
7604
reg. 7608 = rej. 7605 if reg. 7609 regi-
ster7605
7218 7609 R Measured value
7220 7610 R Output value

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5.3 Manufacturer’s parameters
Table 4
Parameter description Range / Value Default value *
Averaging time**** 0.5 s; 1 s; 3 s; 5 s;
10 s; 15 s; 30 s; 1 min;
2 min s; 5 min; 7 min;
12 min; 15 min;
1 s
Continuous output:
operation mode
normal work, minimum
output, maximum
output
normal work
Continuous output:
transition characteristic:
(x1, y1) (x2, y2)
-999999…999999 x1 = 0 or –Un or –In;
x2 = Un or In,
y1 = 0 or –Un
lub –In or 4;
y2 = 10 or 20
Continuous output:
overflow service
inactivated, activated inactivated measure-
ment **
Lower input overflow -999999…999999 0
Upper input overflow -999999…999999 Un or In **
Expected value on the
output at lower overflow
-999999…999999 0, 4 **,1e+20***
Expected value on the
output at upper overflow
-999999…999999 11 V or 24 mA
or 1e+20***
Address in MODBUS
network ***
1…247 1
Transmission mode *** 8n2, 8e1, 8o1, 8n1, 8n2
Baud rate *** 4800, 9600, 19200 9600

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* - depending on design
**- For 4..20 mA version, overflow service is activated,
minimum output value is set at 4 mA, input values: minimu
and maximum are calculated according to transition data.
*** - only for version with RS-485 output
****- for transducers with the input for frequency measurement,
the measurement time is always 1s, regardless the values
in registers 7200 and 7600.

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6. TECHNICAL DATA
Measuring ranges
INPUTS:
Measuring range for AC voltage (Un):
0..1..100…130 V a.c.
0..2.5..250…325 V a.c. input resistance > 2 M
0..4..400…600 V a.c.
Measuring range for AC current (In):
0..0.01..1.0…1.3 A a.c. input resistance 10 m10 %
0..0.05..5.0…6.3 A a.c. input resistance 2 m10 %
Frequency measurement 20...500 Hz:
(in range of 24...480 V) ) input resistance > 2 M
Analog output current 0(4)…20…24 mA
load resistance 250 
voltage 0…10…11 V
load resistance 500 
resolution 0.01 % of range
output response time: 200 ms
Serial interface RS485: address 1..247
mode: 8N2, 8E1, 8O1,8N1
baud rate: 4.8, 9.6, 19.2 kbit/s
transmission protocol: Modbus RTU
response time: 200 ms
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Basic conversion error (by default settings):
voltage and current: 0.2% of range in the
frequency range 45...65 Hz
frequency: 0.02 % of range
Additional errors in rated operating conditions:
from ambient temperature changes (100 % of basic error/10 K)
Sustained overload: 150 % Un (in. 400V a.c.),
120 % Un (other inputs),
120 % In
Short duration overload (1 s): voltage input 2 Un
(<1000 V)
current input: 10 In
Admissible peak factor: current: 2
voltage: 2
Rated operating conditions:
supply voltage 85..253 V a.c. 40..400 Hz; 90..300 V d.c.
20..40 V a.c. 40..400 Hz; 20..60 V d.c.
ambient temperature - 20...23...60 C
storage temperature -25...+85 C
humidity < 95 % (inadmissible condensation)
work position any
Averaging time – measurement (programmable): 0.5 s
Pre-heating time: 15 minutes

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Galvanic isolation between:
- supply – meas.input: 3.2 kV d.c.
- supply – output: 2 kV d.c.
- measuring input – output: 3.2 kV d.c.
Ensured protection grade acc. to EN 60529:
- for the housing IP40
- from the terminal side IP20
Dimensions: 22.5 x 100 x 120 mm
Weight: 0.125 kg
Fixing: 35 mm rail acc. to EN 60715
Input power: < 3 VA
Electromagnetic Compatibility:
noise immunity acc. to EN 61000-6-2
noise emissions acc. to EN 61000-6-4
Safety requirements acc. to EN 61010 -1 standard:
– isolation between circuits: basic
– installation category III (for version 400 V – cat. II)
– pollution level 2
– maximal phase-to-earth working voltage:
- for power supply circuit 300 V
- for measuring input 600 V – cat. II (300 V – cat. III)
- for programming input 50 V
- for output 50 V
– altitude above sea level < 2000 m.
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