PMA Digital 280-1 Operating Manual
PMA Prozeß- und Maschinen-Automation GmbH
g
Digital 280-1
digital indicator
Digital280-1
Di
ital 280-1
Operating manual
English
9499-040-67311
Valid from: 8415
û
BlueControl
More efficiency in engineering,
more overview in operating:
The projecting environment for the BluePort
controllers
ATTENTION!
Mini Version and Updates on
Description of symbols:
g General information
a General warning
l Attention: ESD sensitive devices
© PMA Prozeß- und Maschinen-Automation GmbH • Printed in Germany
All rights reserved.
No part of this document may be reproduced or published in any form or by any means
without prior written permission from the copyright owner.
www.pma-online.de
or on PMA-CD
A publication of PMA Prozeß- und Maschinen Automation
P.O.Box 310229
D-34058 Kassel
Germany
Content
1 Mounting ..............................5
2 Electrical connections .......................7
2.1 Connecting diagram .........................7
2.2 Terminal connection.........................7
3 Operation .............................11
3.1 Front view .............................11
3.2 Behaviour after power-on .....................11
3.3 Operating level ...........................12
3.3.1 Min/max function ............................12
3.3.2 Tare function ..............................13
3.3.3 Sample&hold amplifier .........................13
3.3.4 O
3.3.5 Extended operating level ........................15
3.3.6 Alarm handling .............................16
measurement .............................14
2
3.4 Maintenance manager / Error list .................17
4 Controller .............................19
4.1 Operation..............................19
4.2 Control parameters .........................19
4.3 Self-tuning .............................20
4.3.1 Self-tuning start ( Ù + È )......................20
4.3.2 Self-tuning cancellation ........................20
4.3.3 Acknowledgement procedures in case of unsuccessful self-tuning . 21
4.3.4 Examples for self-tuning attempts ..................22
4.3.5 (controller inverse, heating or heating/cooling) ...........22
4.4 Manual tuning ...........................22
4.5 Operating structure.........................24
5 Configuration level ........................25
5.1 Configuration survey........................25
5.2 Configuration ...........................26
5.3 Configuration examples ......................34
5.3.1 On-Off controller / Signaller (inverse) .................34
Digital 280-1 3
5.3.2 2-point controller (inverse) .......................35
5.3.3 Continuous controller (inverse) .....................36
5.3.4 Digital 280-1 with measured value output ...............37
6 Parameter setting level ......................39
6.1 Parameter survey ..........................39
6.2 Parameter..............................40
6.3 Input scaling ............................41
6.3.1 Input Inp ...............................41
7 Calibration level .........................43
7.1 Offset correction ..........................43
8 BlueControl ............................47
9 Versions ..............................49
10 Technical data ..........................51
11 Safety hints ............................57
11.1 Resetting to factory setting.....................58
12 Notes ................................59
4 Digital 280-1
1 Mounting
Mounting
10
(0.4")
max.
(4.65")
60°C
0°Cmin.
118
max.
95% rel.
%
10V i mA/Pt
(1.89")
48
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
F
min max
96 (3.78")
1..10
+0.02
+0,6
45
(1.77" )
(0.04..0.4")
+0,8
92
+0.03
(3.62" )
min.48
(1.89")
Loc
security switch
or
Ü
Ü
*
a
*
Loc 10V mA/Pt
Safety switch:
For access to the safety switches, the indicator must be withdrawn from the hou
sing. Squeeze the top and bottom of the front bezel between thumb and forefinger
and pull the controller firmly from the housing..
10V i mA/Pt right 1 Current signal / Pt100 / thermocouple/mV at InP
left Voltage signal (V) at InP
Loc open Access to the levels is as adjusted by means of BlueControl
(engineering tool) 2
closed 1 all levels accessible wihout restriction
1 Factory setting 2 Default setting: display of all levels
suppressed, password PASS = OFF
Safety switch 10V i mA/Pt always in position left or right. Leaving the
safety switch open may lead to faulty functions!
l
Caution! The unit contains ESD-sensitive components.
Digital 280-1 5
Electrical connections
abcd e
2 Electrical connections
2.1 Connecting diagram
Option
6
6
7
Modbus RTU
RGND
8
DATA B
DATA A
RS485 RS422
RXD-B
GND
RXD-A
TXD-B
TXD-A
di2
di3
U
1
(2)
3
4
5
T
6
7
8
9
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
L
N
ghi
Logic
+
U
di1
0
100%
90...250V
24V AC/DC
7
8
9
3
+
mA
mV
+
-
+
4
V*
-
1
OUT1
OUT2
OUT3
5
di1
INP1
2
f
* Safety switch mA i V in position left
g
The indicator is provided with screw terminals from 0,5 to 2,5mm².
2.2 Terminal connection
Power supply connection 1
See chapter 10 "Technical data"
Connection of input INP1 2
Input for variable x1 (process value)
a thermocouple
b resistance thermometer (Pt100/ Pt1000/ KTY/ ...)
c potentiometer
d current (0/4...20mA)
e voltage (-2,5...115/-25...1150/-25...90/ -500...500mV)
f voltage (0/2...10V/ -5...5V)
6 Connecting diagram Digital 280-1
Electrical connections
Connection of input di1 4
Digital input, configurable as switch or push-button
Connection of outputs OUT1/2 5
Relay outputs 250V/2A normally open with common contact connection
Connection of output OUT3 6
g logic (0..20mA / 0..12V)
h voltage (0/2...10V)
i current (0/4...20mA)
i transmitter power supply
Connection of inputs di2/3 7 (option)
Digital inputs (24VDC external), galvanically isolated, configurable as switch or
push-button
Connection of output U
8 (option)
T
Supply voltage connection for external energization
Connection of bus interface 9 (option)
RS422/485 interface with Modbus RTU protocol
78 di2/3, UT2-wire transmitter supply
Option
+24VDC
3
J
0V
17,5V
22mA
+
1
K
2
-
5mA
5mA
1
(2)
3
4
5
+
6
7
-
8
9
10
11
12
13
14
15
16
17
1
5
3
4
5
6
7
8
9
10
11
12
+
13
14
-
15
J
OUT3
6 OUT3 transmitter supply
-
7
8
9
10
11
12
13
14
15
+
13V
22mA
+
-
2
3
K
1
x
a
Digital 280-1 Terminal connection 7
If UTand the universal output OUT3 is used there may be no external galvanic
connection between measuring and output circuits!
Electrical connections
6 OUT 3 als Logikausgang mit Solid-State-Relais (Reihen- und Parallel-Schaltung)
Logic
3
3
4
4
5
5
6
6
7
7
7
8
8
8
9
9
9
10
10
serial installation
I=22mA
max
4V
12V
4V
4V
SSR
_
+
SSR
_
+
SSR
_
+
parallel installation
I=22mA
max
7
7
7
12V
8
8
8
9
9
9
SSR
_
+
SSR
_
+
9 RS485 interface (with RS232-RS485 interface converter) *
RT
RGND optional connection
RGND RGND
DATA B
DATA A
13
13
14
14
15
15
(16)
16
17
17
10
10
11
11
12
12
13
13
14
14
15
15
DATA B
DATA A
12
12
J
12
12
13
13
14
14
15
15
(16)
16
17
17
10
10
11
11
12
12
13
13
14
14
15
15
RGND
DATA B
DATA A
max. 1000m
twisted pair
* Interface description Modbus RTU in seperate manual: see page .
12
12
13
13
14
14
15
15
(16)
16
17
17
10
10
11
11
12
12
13
13
14
14
15
15
PC
interface
converter
RT
R = line resistanceT
RS485-RS232
8 Terminal connection Digital 280-1
L1
L2
Electrical connections
Connecting exampleDigital 280-1:
Digital 280-1
N1
N2
Logic
fuse
fuse
TB 40-1
fuse
1
temperature limiter
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
SSR
_
+
contactor
+
heating
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
9
10
11
12
13
14
15
resetswitch
+
a
1
TB 40-1 temperature limiter
standard-version (3 relay)
TB40-100-0000D-000
r
further versions on demand
CAUTION:
Using a temperature limiter is recommendable in systems where
overtemperature implies a fire hazard or other risks.
Digital 280-1 Terminal connection 9
Operation
F
FUNC
ADA
OUT1
OUT2
OUT3
ERR
min max
Digital 280-1
2
3
4
5
6
1
0
987
3 Operation
3.1 Front view
1 measured value display
2 statuses of switching outputs OuT.1... 3 (or alarm statuses)
3 lit with self-tuning activated
4 lit with tare or sample & hold function activated
5 lit with entry in the error list
6 function-key
7 down-key
8 up-key
9 enter-key: calls up extended operating level/ errorlist
0 pc connection for BlueControl (engineering-tool)
g
The measured value is displayed as standard. At parameter setting, configuration,
calibration level and at the extended operating level, the display changes
cyclically between parameter name and parameter value.
3.2 Behaviour after power-on
After supply voltage switch-on, the unit starts with the operating level.
The unit is in the condition which was active before power-off.
If KS4x-1 was in manual mode before power-off, the controller starts with cor
recting value Y2 after switching on again.
-
10 Front view Digital 280-1
3.3 Operating level
3.3.1 Min/max function
The minimum and maximum values are stored.
Operation
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Ì
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
As long as the Ì key is pressed, the minimum
value is displayed.
min
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Ì
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
As long as the È key is pressed, the maximum
value is displayed.
max
Deleting the minimum value
Keeping the Ì key pressed whilst actuating key È deletes the minimum value.
Additionally, determination whether a digital input or key è should delete the minimum value is possible during configuration (rES.L).
Deleting the minimum and maximum values can be done also via interface.
Deleting the maximum value
Keeping the È key pressed whilst actuating key Ì deletes the maximum value.
Additionally, determination whether a digital input or key è should delete the maximum value is possible during configuration (rES.H).
Deleting the minimum and maximum values can be done also via interface.
g
When switching off Digital 280-1, minimum and maximum values are deleted.
Digital 280-1 Operating level 11
3.3.2 Tare function
When switching on the tare function, the instantaneous measured value is set to
zero. In this case, measurement is continued with this offset. By switching off the
tare function, the actual measured value is displayed again.
measured value
effective value
è
ADA
FUNC
ERR
è
è
ADA
ADA
FUNC
FUNC
ERR
ERR
Operation
t
è
ADA
FUNC
ERR
Tare can be activated during configuration (Func r Fnc.1 = 1).
Dependent of configuration, tare can be made effective via one of the digital inputs di1, di2, di3, the
è key or interface (LOGI r tArA).
3.3.3 Sample&hold amplifier
With the sample & hold function activated, the measured value is held on the display. By switching off the sample & hold function, the actual measured value is
displayed again.
measured value
effective value
t
è
è
ADA
FUNC
ERR
è
ADA
FUNC
ERR
è
ADA
FUNC
ERR
è
ADA
ADA
FUNC
FUNC
ERR
ERR
è
ADA
FUNC
ERR
Sample & hold can be activated during configuration (Func r Fnc.1 = 2).
Dependent of configuration, sample & hold can be made effective via one of the
digital inputs di1, di2, di3,the
è -key or via interface (LOGI r HOLd).
Digital 280-1 Operating level 12
3.3.4 O2measurement
For measurement, lambda probes (λ probes) are used.
The electromotive force (in Volt) supplied by the λ probes is dependent of the
instantaneous oxygen content and of the temperature. Therefore, Digital 280-1
can display accurate measurement results only, provided that the probe tempera
ture is known to the indicator.
Enter the temperature in °C in parameter tEmP. When using heated λ probes, the
Operation
-
g
probe temperature can be entered directly. When using non-heated λ probes, ho
-
wever, the displayed values can be accurate only for a narrow temperature band.
Unless the probe temperature is known, we recommend using our KS90-1
Oxygen (temperature measurement via a second input).
Configuration:
Adjust O
measurement in function 1:
2
Func r Fnc.1 3 O2 measurement
Display: The displayed value is always a % value.
As it is mostly necessary to cover a wide measuring range, we recommend adjusting a high number of digits behind the decimal point during configuration, whereby loss of high values is prevented due to floating decimal point display
(0,0001 (1 ppm) to 99999 is possible) .
Specify the number of digits behind the decimal point below othr :
0 0 digits behind the decimal point
1 1 digit behind the decimal point
othrr dP
2 2 digits behind the decimal point
3 3 digits behind the decimal point
4 4 digits behind the decimal point
Adjust the sensor type to one of the high-impedance voltage inputs in InP:
Specification in BlueControl Effective measuring range
41 Special ( 0...100 mV) -2,5...115 mV
Inp.1r
S.tYP
42 Special ( 0...1000 mV) -25...1150 mV
43 Special ( -25...90 mV)
44 Special ( -500...500 mV)
These high-impedance inputs are not provided with break monitoring. If necessa
ry, measurement input protection is possible via limit value processing.
-
Digital 280-1 Operating level 13
Operation
3.3.5 Extended operating level
The content of the extended operating level is determined by means of BlueCon
trol (engineering tool). Parameters which are important or which are used fre
-
quently can be copied into the extended operating level.
Actuating key Ù switches to the first value
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
of the extended operating level (may be
preceded by error list or set-point).
The selected parameters can be changed
by pressing keys Ì and È.
Ù
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Ù
Ù
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Press Ù to go to the next parameter.
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Press Ù to return to the normal display
after the last parameter .
-
14 Operating level Digital 280-1
3.3.6 Alarm handling
Operation
Max. three alarms can be configured and assigned to the individual outputs. Ge
nerally, outputs OuT.1... OuT.3 can be used each for alarm signalling. If more
than one signal is linked to one output the signals are OR linked. Each of the 3 li
mit values Lim.1 … Lim.3 has 2 trigger points H.x (Max) and L.x (Min), which
can be switched off individually (parameter = “OFF”). Switching difference
HYS.x of each limit value is adjustable.
Operaing principle absolut alarm
L.1 = OFF
InL.1
H.1
HYS.1
H.1 = OFF
LED
InH.1
Operating principle relative alarm
L.1 = OFFF
SP
InL.1
H.1
HYS.1
H.1 = OFF
-
-
InH.1
LED
InL.1
InL.1
H.1
L.1
L.1
HYS.1
LED
HYS.1 HYS.1
LED
InH.1
InH.1
LED
normally closed ( ConF / Out.x/O.Act = 0 )
normally open ( ConF / Out.x/O.Act = 1 )
InL.1
InL.1
LED
LED
HYS.1
HYS.1
L.1
SP
InH.1
L.1
SP
InH.1
H.1
HYS.1
LED
Digital 280-1 Operating level 15
Operation
g
The variable to be monitored can be selected seperately for each alarm via
configuration
The following variables can be monitored:
process value
w
control deviation xw (process value - set-point)
w
control deviation xw + suppression after start-up or set-point change
w
As there is automatically a control deviation after starting up and after
set-point changes, however, the alarm is suppressed, until the signal was
within the limits once.
Set-point
w
Correcting variable y (controller output signal)
w
g
If measured value monitoring + alarm status storage is chosen ( ConF / Lim /
Fnc.x=2), the alarm relay remains switched on until the alarm is resetted in the
error list ( Lim 1..3 = 1) or via interface.
3.4 Maintenance manager / Error list
In case of one or several errors, the extended operating
level always starts with the error list. A current entry
into the error list (alarm or error) is displayed by the
Err LED in the display.
For displaying the error list, pressing 1x Ù is necessary.
(with configuration as a controller, press 2x Ù).
Digital 280-1
OUT1
OUT2
OUT3
ADA
FUNC
ERR
Err LED status Signification Proceed as follows
- Determine the error type in the error list via the error number
- Remove the error
-
Acknowledge the alarm in the error list pressing key È or Ì
-
The alarm entry was deleted.
g
blinks Alarm due to
existing error
lit Error removed,
Alarm not
acknowledged
off No error, all alarm entries deleted
Saved alarms (Err-LED is lit) can be acknowledged and deleted with the digital
input di1/2/3 or the Ò-key.
Configuration, see page 31: ConF / LOGI / Err.r
g
If an alarm is still valid that means the cause of the alarm is not removed so far
(Err-LED blinks), then other saved alarms can not be acknowledged and deleted.
Error status Signification
2 Existing error Change to error status 1 after error removal
1 Stored error Change to error status 0 after acknowledgement in error list
0 No error/message not visible, except with acknowledgement
16 Maintenance manager / Error list Digital
280-1
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