Page 1
Operating Instructions
R2700
Compact Controllers and Temperature Limiters
3-349-383-03
19/2.15
Page 2
Page 3
CONTENTS Page CONTENTS Page
Safety Features and Precautions .........................................................4
Maintenance .....................................................................................5
Repair and Replacement Parts Service ................................................5
Product Support Industry ....................................................................5
Device Identification ..........................................................................6
Mechanical Installation / Preparation .................................................8
Electrical Connection ........................................................................8
Operation ....................................................................................... 10
Disabling Modifications ....................................................................11
Performance after Activating Auxiliary Voltage ..................................11
Operating Flow Chart ......................................................................12
Automatic Operation / Off ................................................................13
Manual / Automatic Selection ..........................................................13
Configuration ...................................................................................14
Controller Types ..............................................................................20
Controller Sorts ...............................................................................21
Conversion of Parameter Sets ..........................................................22
Backup Functions ............................................................................22
PI Performance ................................................................................22
Configuring the Switching Outputs and the Continuous Output ...........23
Relay Outputs for Actuating Signals ..................................................23
Actuator Output for Contactor ...........................................................24
Water Cooling .................................................................................24
Extra derivative action for cooling ......................................................24
GMC-I Messtechnik GmbH R2700– 3
Configuration of the Controller with Continuous Output ...................... 25
Setpoint Ramps .............................................................................. 25
Adaptive Measured Value Correction ................................................ 26
Suppression of Periodic Disturbances .............................................. 27
Hot-Runner Control ......................................................................... 28
Feed-Forward Control ..................................................................... 29
Parameters Configuration ................................................................ 30
Balancing ....................................................................................... 33
Program Controller .......................................................................... 34
Program Entry ................................................................................ 36
Manual Optimization ....................................................................... 38
Self-Tuning ................................................................................... 42
Data Logger ................................................................................... 43
Limit Value Monitoring ................................................................... 44
Limiter ........................................................................................... 44
Heating Current Monitoring .............................................................. 45
Heating Circuit Monitoring ............................................................... 46
Alarm History .................................................................................. 47
Error Messages .............................................................................. 48
Error Acknowledgement .................................................................. 49
Error mask ..................................................................................... 50
Replacing an R2600 Controller with an R2700 Controller .................. 52
Technical Data ................................................................................ 54
CompactConfig Configuration Tool ................................................... 55
Page 4
GMC-I Messtechnik GmbH R2700– 4
Continuous doubled or
Warning concerning a point of danger
Indicates EC conformity
reinforced insulation
Attention: observe documentation!
Functional earth terminal,
earthing for functional purposes only
(no safety function)
The device may not be disposed of with the trash. Further
information regarding the WEEE mark can be accessed on
the Internet at www.gossenmetrawatt.com by entering the
search term WEEE.
Meanings of Symbols on the Instrument Safety Features and Precautions
The R2700 controller is manufactured and tested in accordance with safety
regulations IEC 61010-1 / DIN EN 61 010-1 / VDE 0411-1. If used for its
intended purpose, the safety of the user and of the device is assured.
Read the operating instructions completely and carefully before
using the device, Follow all instructions contained therein. Make
sure that the operating instructions are available to all users of the
instrument.
Observe the following safety precautions:
– The device may only be connected to an electrical system which com-
plies with the specified nominal range of use (see circuit diagram and
serial plate), and which is protected with a fuse or circuit breaker with
a maximum nominal current rating of 16 A.
– The installation must include a switch or a circuit breaker which serves
as a disconnecting device.
The controller may not be used:
– If it demonstrates visible damage
– If it no longer functions flawlessly
– After long periods of storage under unfavorable conditions (e.g.
humidity, dust or extreme temperature)
In such cases, the instrument must be removed from operation and
secured against unintentional use.
Page 5
Maintenance
Housing
No special maintenance is required for the housing. Keep outside
surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use
of solvents, cleansers and abrasives.
Repair and Parts Replacement
Repair and replacement of parts conducted at a live open instrument may
only be carried out by trained personnel who are familiar with the dangers
involved.
Return and Environmentally Sound Disposal
The R2700 is a category 9 product (monitoring and control instrument) in
accordance with ElektroG (German electrical and electronic device law).
This device is subject to the RoHS directive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on
the Internet at www.gossenmetrawatt.com by entering the search term WEEE.
We identify our electrical and electronic devices in accordance with WEEE 2012/19EU and ElektroG with the symbol
shown at the right per DIN EN 50419.
These devices may not be disposed of with the trash. Please
contact our repair and replacement parts service department regarding
the return of old devices.
GMC-I Messtechnik GmbH R2700– 5
Repair and Replacement Parts Service
If required please contact:
GMC-I Service GmbH
Service Center
Thomas-Mann-Str. 20
90471 Nürnberg, Germany
Phone +49 911 817718-0
Fax +49 911 817718-253
E-Mail service@gossenmetrawatt.com
www.gmci-service.com
This address is only valid in Germany. Please contact our representatives
or subsidiaries for service in other countries.
Product Support Industrial Division
If required please contact:
GMC-I Messtechnik GmbH
Product Support Hotline – Industrial Division
Phone +49 911 8602-500
Fax +49 911 8602-340
E-Mail support.industrie@gossenmetrawatt.com
Page 6
GMC-I Messtechnik GmbH R2700– 6
Device Identification
Feature Designation
Compact controller, 96 x 48 mm, IP 67, with self-tuning, 2
Controller Type Outputs
Two-step, three-step, step-action controller 2 transistor, 2 relay A1
Two-step, three-step, step-action controller 2 transistor, 4 relay A3
Continuous, split range controller, discontinuous action controller 1 continuous, 2 transistor, 2 relay A4
Continuous, split range controller, discontinuous action controller 1 continuous, 2 transistor, 4 relay A6
Measuring Ranges
Configurable measurement input
Thermocouple Type J, L 0 ... 900 °C / 32 ... 1652 °F
Type K, N 0 ... 1300 °C / 32 ... 2372 °F
Type R, S 0 ... 1750 °C / 32 ... 3182 °F
Type B 0 ... 1800 °C / 32 ... 3272 °F
Type C 0 ... 2300 °C / 32 ... 4172 °F
Type E 0 ... 700 °C / 32 ... 1292 °F
Type T 0 ... 400 °C / 32 ... 752 °F
Type U 0 ... 600 °C / 32 ... 1112 °F
Resistance thermometer Pt100 – 200 ... 600 °C / –328 ... 1112 °F
Ni100 – 50 ... 250 °C / –58 ... 482 °F
Ohm 0 ... 340 Ω
Linear 0 ... 50 mV
nd
setpoint and 2 alarms, R2700
B1
Page 7
Feature Designation
Measurement input: configurable standard signal 0 / 2 ... 10 V or 0 / 4
... 20 mA B2
Two inputs can be mutually configured as with designation B1 for differential and switch controllers. B3
First measurement input can be configured as with designation B1, and second as with designation B2 for slave controllers. B4
Two measurement inputs can be mutually configured as with designation B2 for differential, slave and switch controllers. B5
Auxiliary Voltage
85 ... 265 V AC, 48 ... 62 Hz C1
20 to 30 V DC C2
Connectors
Standard D0
Connection at rear D1
Data Interface
None F0
RS 485 F1
Profibus DP F2
Configuration
Default settings K0
Configured per customer requirements K9
Operating Instructions
German L0
English L1
Italian L2
French L3
None L4
GMC-I Messtechnik GmbH R2700– 7
Page 8
GMC-I Messtechnik GmbH R2700– 8
48
96
114
129
5
Connectors:
screw terminals for wire with
1.5 square mm cross-section or
two-core wire-end ferrules for
2 × 0.75 square mm
1
2
3
4
5
6
7
8
9
10
12
12
14
15
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Mechanical Installation / Preparation
Several devices can be mounted next to each other without separators at
the side.
In general, unobstructed air circulation must be assured when one or
several devices are installed. The ambient temperature underneath the
devices may not exceed 50 °C.
In order to assure IP 67 protection, an appropriate seal must be installed
between the device and the panel.
Electrical Connection
Figure 1: Housing Dimensions and Panel Cutout
The R2700 controller is intended for installation to a control panel. The
installation location should be vibration-free to the greatest possible
extent. Aggressive vapors shorten the service life of the controller.
Requirements set forth in VDE 0100 must be observed during the
performance of all work. Work on the device may only be carried out by
trained personnel who are familiar with the dangers involved.
Set the housing into the panel cutout from the front, and secure it from
behind at the top and bottom with the two included snap retainers.
Figure 2: Connector Terminal Positions
Page 9
Attention: to ensure radio interference suppression, the protective conductor and/or control cabinet grounding must be connected to terminal 18..
110 / 230 V A
N
L
24 V DC
–
+
20 mA / 10 V
20 mA
10 V
out 3
20 mA
10 V
out 4
~
Binary
Input 1
Binary
Input 2
Transistor Outputs Cont.
output
RS 485
Profibus DP
Auxiliary voltage
SP2 A1, A3, A4, A6 A4, A6 F1 / F2 C1 C2
1116
2 – 2 – 17
3318
4 + out1 4 C 19
55+B20
6 + out2 6 A 21
7722
8823
9924
10 10 25
12 12 26
12 12
14 14 28
15 15
15 15 30
B1, B3, B4
Measurement Input 1 Meas. Input 2 Relay Outputs
GMC-I Messtechnik GmbH R2700– 9
B2, B5
Heating Cur-
rent Transf.
B3 B4
Relay
Outputs
27
A1
29
A2
A3, A6
Page 10
GMC-I Messtechnik GmbH R2700 –10
Select: off/manual ↔ automatic operation
Setpoint 2 active
Manual operation
Reduce value
Switch displays, levels and values
(see operating flow chart)
Figure 3: Controls
Increase value
Switching output for heating active
Switching output for cooling active
Alarm 1 active
Alarm 2 active
Actual Value
Setpoint / heating current /
Infrared interface (see page 55)
manipulating factor (operating level)
Operation
Setting Values with the Up and Down Scroll Keys
– At the operating level, the setpoint can be adjusted within a range extending from the minimum to the maximum setpoint.
– Configuration and parameter settings can be changed if password protection has not been activated, or if the correct password has been entered.
– In order to avoid erroneous settings, changes must be acknowledged within 5 seconds with the key.
– The change can be discarded by pressing the key.
Page 11
Disabling Modifications
Actual Value
Setpoint or oFF
U/M
Firmware Version
LED Segment Test
Approx. 1.5 s Approx. 1.5 s
Approx. 1.5 s
Designations
The default setting (PSEt = dEF) allows for modification of all parameters and configurations. The following settings can be used in order to disable the
entry of changes:
Disabling Setpoint Changes
The setpoint can only be adjusted between its minimum and maximum values. The SPL and SPH parameters must be set accordingly.
Disabling Changes to Parameters and Configurations
After password protection for device operation has been activated (PASS not equal to diS), changes can only be made after the correct password has
been entered. However, changes are always possible via infrared or bus interface!
Disabling Self-Tuning
Starting self-tuning by pressing the corresponding keys can be separately disabled with the configuration tunE = diS.
However, self-tuning can always be started via infrared or bus interface!
Performance after Activating Auxiliary Voltage
GMC-I Messtechnik GmbH R2700 –11
Page 12
GMC-I Messtechnik GmbH R2700 –12
Actual
Ht. Current Manip.
Automatic Operation
Actual
Setpoint
Actual Actual
Param. Value
Param. Value
Press key briefly. Press and hold key until display switches.
(page 30)
(page 14)
With heat current
monitoring only
Setpoint can only be
set here
Configuration
Configuration
CONFIGUREPARAMETER LEVEL
*
*
*)
If password protection for device operation is activated (configuration:
PAS S
=
EnA
), the
correct password must be entered in order to change values.
Otherwise
-no-
appears at the display if an attempt is made to change a value.
1st Actual
2nd Actual
With differential
controller only
Actual
With program
controller only
Program
Program
Program Controller
*
Operating Flow Chart
Press and hold both keys until display switches.
Page 13
Automatic Operation / Off
Actual
Off
– No alarm function
– No indication of errors
Operating Level
If the key is configured to on/off, the controller can be deactivated
by pressing and holding.
Manip.
Actual
Manual Operation
Operating Level
– Alarm function and error indication identical to automatic operating mode.
– The actuator outputs are controlled with the scroll keys and not by the controller
function.
– Switching between manual and automatic modes is bumpless in both directions.
– PDPI controller:
Manipulating factor is displayed as a percentage. Value changes
are forwarded immediately to the control outputs.
– Step-action controller:
Switching outputs can be adjusted directly with “more” or
“less” by pressing the up and down scroll keys.
If the key is configured to
manual / automatic
Manual / Automatic Selection
GMC-I Messtechnik GmbH R2700 –13
Page 14
GMC-I Messtechnik GmbH R2700 – 14
+
Configuration
Press and hold simultaneously
Configuration Display Selection Standard Comment
Sensor type
U/M
Input quantity
Linearization
Controller type
Derivative action
SEnS
SEnS
SEnS
SEnS
COut
tu 11
tYP.j
Typ J
tYP.v
tYP.L
L
tYP.K
K
tYP.b
B
tYP.S
S
tYP.r
R
tYP.n
N
tYP.E
E
tYP.t
T
1° C, 1° F, 0.1° C, 0.1° F
0 - 20 / 4 - 20 dead / live zero
Lin / PH Linear / titration curve
MEAS Measure only
P0W Actuator
0n0F Limit transducer
PdP1
ProP Proportional actuator
dis / ena
2/3 step, step-action, split range
–/ extra derivative action for cooling
U
tYP.C
C
tYP.-
–
Pt 1
Pt100
ni 1
Ni100
ni12
Ni120
rES
–
0HM Resistance in Ω
Lin Voltage in mV
Typ e J
1°C
0 - 20
Lin
PdPI See page 20
diS
Not with standard signal
With standard signal only
With standard signal only
and designation F2
only with 3-step
controllers
Page 15
Configuration Display Selection Standard Comment
Controller sort
C1n
Binary Input 1/ 2
1n 1
1n 2
Binary Inputs
GMC-I Messtechnik GmbH R2700 – 15
1n
nor Fixed setpoint controller
diff Differential controller
sla Slave controller
swit Switch controller
rati Ratio controller
mean Mean value controller
phlt Pause program controller
prun Start/stop program controller
oFF No function
SP 2 Setpoint 2 active
LooP Controller on
HAnd Manual operation
tunE Start self-tuning
Quit Clear limit value error
FEF0 Feed-forward control
StvP Start-up active
booS Start boosting
LoGG Data logger recording
darK dark Display (only In 1)
SWit
set2 / SET3 Parameter set conversion
baCk Backup function
stat static input
dyn dynamic, switching by key
Switch controller active (only for B3,
B5 and In 2)
nor
SP 2 /
oFF
StAt
Only for designation B3 or B4
The function of the binary
input has precedence over
operation and
configuration.
Page 16
GMC-I Messtechnik GmbH R2700 – 16
Configuration Display Selection Standard Comment
out1 switching output,
out2 switching output
Switching output selection
Relay output out3
Relay output out4
0ut1
0ut 2
0ut
0ut3
0ut4
tr4 Controller 4
tr3 Controller 3
tr2 Controller 2
tr1 Controller 1
phlt Program pause
prun Program running
oFF No function
HEAt Heater, more heat
CooL Cooling, more cooling
H20 Water cooling
Hclo Less heat with step-action controller
Cclo Less cooling with step-action controller
Hotr Hot-runner heat
1ndu Induction heating
al1l 1st lower limit value
Same as out1 switching output
nor
xCh Outputs out1 and out2
Same as switching output out1, but without Hotr
Same as switching output out1, but without Hotr
with step-action controller
with step-action controller
As configured
exchanged with A1 and A2
HEAt
oFF
nor
oFF
oFF
See page 23
Only with designation A1,
A4, see page 23
See page 23
Page 17
Configuration Display Selection Standard Comment
Continuous output
Cont
Continuous output
Alarm 1
Alarm 2
Channel error mask A1
Device error mask A1
Channel error mask A2
Device error mask A2
Alarm 1
Alarm 1
Alarm 1
Alarm 2
Alarm 2
Alarm 2
Limiter
GMC-I Messtechnik GmbH R2700 – 17
Cont
A 1
A 2
A1M1
A1M2
A2M1
A2M2
AL 1
AL 1
AL 1
AL 2
AL 2
AL 2
L1M
oFF No function
HEAt Heater
CooL Cooling
Proc Current controlled variable
SP Current setpoint
mea1 Current measured quantity 1
mea2 Current measured quantity 2
0 - 20 / 4 - 20 dead / live zero
20-0 / 20-4 dead / live zero invers
noc / ncc Operating current / idle current
noc / ncc Operating current / idle current
def / 1 ... 3FFF
0 ... 03FF
0 ... 3FFF
0 ... 03FF
rEL / AbS Relative / absolute
nSvP / SvP Start-up inhibiting off / on
nSto / Stor Alarm memory off / on
rEL / AbS Relative / absolute
nSvP / SvP Start-up inhibiting off / on
nSto / Stor Alarm memory off / on
no / yes
oFF
0 - 20
noc
noc
def
0
0
0
rEL
nSUP
nSto
rEL
nSUP
nSto
no See page 44
See pages 23 and 25,
only if a continuous
output is present
(designation A4/A6)
See page 44
See page 50
See page 44
Page 18
GMC-I Messtechnik GmbH R2700 – 18
Configuration Display Selection Standard Comment
Heating current
acquisition
Heating circuit monitoring
Adaptive Measured Value
Correction
Actuator Output for Contactor
PI Performance
Manual key function
Start self-tuning
Setpoint staircase
Actuation inactive
Bus protocol
Baud rate
Interface address
Status Profibus DP
Data logger recording
Alarm History
HCUR
LbA
AMC
rELA
p1
HKEY
tune
sp
Stvp
Prot
bAUd
Addr
dP
logg
h1st
4121 / AC with GTZ4121/
no / yes
no / yes
no / yes
no / yes
oFF / HAnd
EnA / diS Enable / disable
ramp Setpoint ramp
step
no / yes
r260 DIN 19244 E same as R2600
Mod Modbus
r217 DIN 19244 E same as R0217
hbth HB-Therm
9.6 / 19.2 9.6
0 ... 255 250
WAit / dXch not ready / data exchange
no / yes no
no / yes no
Current transformer 50 mA AC
Setpoint staircases, configurable
with SPuP, SPdn and tSP
4121
no See page 46
no See page 26
no See page 24
no See page 29
oFF See page 13
EnA See page 42
rAMP
no See page 28
r260 With bus interface only
only for designation F2
only for program
controller
R5-485 (F1)
Not with DIN protocoll
With bus interface only
only for Profibus
interface (F2)
Page 19
Configuration Display Selection Standard Comment
Program Controller
Password for operation
Device settings,
parameter set
1)
Universal key = 42
prog
1)
PASS
pset
EnA / diS Enable / disable diS
EnA / diS Enable / disable
1 ... 499 access with CompactConfig
diS See pages 11 and 12
500 ... 999 read access only with CompactConfig
Act
dEF Load default settings
GEt1 Load user configuration 1
GEt2 ...
GEt3 ...
GEt4 Load user configuration 4
Put1 Save active configuration
Put2 ..
Put3 ...
Put4 Save active configuration
Retain active configuration
Act
as user configuration 1
as user configuration 4
Configuration per
customer specification
(K9) is saved to the user
settings. All settings
are overwritten during
loading!
GMC-I Messtechnik GmbH R2700 – 19
Page 20
GMC-I Messtechnik GmbH R2700 – 20
Controller Types
Controller Type Applications
Measure (Cout = MEAS) This configuration is intended for temperature monitoring.
Limit value monitoring can be configured. System deviation is not used for any other purposes.
Actuator (Cout = POW) Same as controller type 1 (measure)
Limit transducer (Cout = OnOF)
PDPI controller and PDPI step-action
controller (Cout = PdPI )
Proportional actuator
(Cout = ProP)
In addition, the actuator manipulating factor is read out with the actuating cycle.
The maximum manipulating factor is read out if the actual value is less than the momentary setpoint.
The minimum manipulating factor is read out if the actual value is greater than the momentary setpoint plus the
dead zone.
Switching hysteresis is adjustable, and status changes are possible after each actuating cycle.
Actuating cycle time is used as a time constant for an additional input filter.
The PDPI control algorithm assures short settling time without overshooting.
The actuating cycle is at least as long as the selected value.
The dead band inhibits switching back and forth between “heating” and “cooling” if no lasting deviation occurs.
Selection of these two controller types, namely PDPI and PDPI step-action controller, defines the controller it-
self on the basis of the output configuration.
The control variable is proportional to system deviation, and a statistical dead zone can be adjusted at the
cooling side.
Actuating cycle time is used as a time constant for an additional input filter.
This controller type is not intended for temperature regulation, because it does not demonstrate the dynamics
required for control without overshooting.
Page 21
Controller Sorts
Controller Sort Applications
Fixed setpoint controller (C In = nor)
Differential controller (C In = diff)
Slave controller (CIn = SLA) The external setpoint which is applied to the 2nd measurement input replaces the internal setpoint.
Switch controller (CIn = SWit)
Ratio controller (C In = rAti) Both actual values are controlled to a fixed ratio. The second actual value is multiplied by the setpoint (as a
Mean value controller (C In = MEAn) The mean value = (1
GMC-I Messtechnik GmbH R2700 – 21
Only the first measurement input is used for the controlled variable.
Actual value difference, i.e. 1st actual value versus 2nd actual value, is regulated to the selected differential
setpoint. The differential setpoint can be set within a range of
Limit value monitoring is relative to actual value difference, and not the two actual values.
The setpoint ramp function is retained.
After switching to setpoint 2 (e.g. via binary input) the controller becomes a
SP 2
setpoint.
Upper and lower limits for the external setpoint are scaled with the
The
SP L
and
SP H
If an attempt is made at the operating level to change the setpoint (display mode: actual value / setpoint),
appears briefly at the bottom display.
If a control loop has only one actuator and two sensors, and if the sensor to be used depends upon the operating
state, the switch controller can be used.
As long as “switch controller active” has not been selected, the first sensor and the first set of control parameters
(
Pb I
and tu) are active, as is also the case with fixed value control.
If “switch controller active” has been selected (e.g. via binary input), the second sensor and the second set
of control parameters (Pb 2 and tu 2) are active. This state is indicated by a short blinking of the W2 LED.
Relative limit values are only monitored for the respectively active sensor, and absolute limit values are always monitored for both.
percentage) and used as a command value.
Limit value monitoring refers to the mean value and not to the two actual values.
parameters limit the external setpoint for control and display purposes.
st
actual value + 2nd actual valule)/2 is controlled to the fixed setpoint value.
±
½ of the measuring range.
fixed setpoint controller
rn L
and
rn H
parameters.
using the
no
Page 22
GMC-I Messtechnik GmbH R2700 – 22
Conversion of Parameter Sets
If the binary input is configured to parameter set conversion (SEt2 / SEt3), parameter set 2/3 is loaded when the contact is closed, and paramter set 1
is loaded when the contact is open. The active configuration is overwritten in each case. The W2 LED lights up when parameter set 2 and/or 3 is active.
Backup Functions
If the binary input is configured to backup function (bACK), the momentary actual value is adopted as setpoint value when the contact is closed. Control
is inactive and the manual operation LED lights up. When the contact is open2, control is effected with the adopted setpoint value according to configuration.
PI Performance
The differential component of the PDPI controller type can be attenuated to such an extent by activating PI performance (configuration: PI = YES) that
practically no more derivative action occurs. As opposed to a pure PI controller, response to setpoint changes can be configured without overshooting.
This setting is advisable for control systems which include true delay time.
Page 23
Configuring the Switching Outputs and the Continuous Output
As a standard feature, a 2-step heating controller is configured to switching output out1 (transistor output).
Control performance (2-step heating or cooling, 3-point discontinuous, step-action controller, continuous-action controller, split range controller) is
determined by the configuration selected for the actuating outputs. See also the “Configuration” table on page 16.
– Actuators for heating and cooling are selected independent of each other (this allows for the combination of, for example, step-action control for
heating, as well as for cooling.)
– If 2-step control is required, heating and cooling outputs may not be configured simultaneously for the respective controller.
– Several switching outputs can be assigned to the same controller output for separate control of several actuators with a single controller output.
– If a continuous and a discontinuous output are both configured for heating (or cooling) at the same time, the channel performs like a
continuous-action controller and the discontinuous output is inactive.
– If, inadvertently, only one “Less” output is configured for heating (or cooling), it remains inactive.
– The settings can be freely combined regardless of controller type and controller sort.
Relay Outputs for Actuating Signals
If, in the case of device variant A1 or A4, two relay outputs are required for the actuating signals, for example in the case of three-step or step-action
control, the alarm outputs can be exchanged with the actuator outputs.
The Out = XCh configuration (see page 16) exchanges the functions of out1 with A1 and out2 with A2.
GMC-I Messtechnik GmbH R2700 – 23
Page 24
GMC-I Messtechnik GmbH R2700 – 24
Actuator Output for Contactor
If, during ascertainment of control parameters (manual optimization or self-tuning), a cycle time results which is significantly shorter than advisable
for the service life of the contactor, cycle time can be increased to the limit of system controllability by configuring the actuating outputs for contactor
control (rELA = YES). If the bit is set before self-tuning is started, cycle time is set to the highest possible value by the self-tuning function.
Water Cooling
In order to account for the disproportionately powerful cooling effect which prevails when water is evaporated, the cooling control variable can be read
out in a modified fashion by configuring the switching output for water cooling (Outx = H2O).
Extra derivative action for cooling
In controlled systems in which cooling has much better or worse thermal contact than heating, control performance for a cooling work point can be
improved by setting the tu II configuration to EnA. This makes it possible to set the delay time for cooling (parameter tu II ) independently.
In the case of water cooling, half the derivative action is automatically used for cooling when configuration tu II = diS has been selected.
Page 25
Configuration of the Controller with Continuous Output
Switching back and forth between current output and voltage output is automatic based upon load impedance.
Continuous output = heating or cooling Cont = HEAt or CooL
Continuous output = controlled variable, setpoint or measured quantities Cont = Proc, SP or MEA1, MEA2
The manipulated variable is read out within a range of 0 to 100% depending upon controller type.
The momentary controlled variable, the currently valid setpoint or the current measured quantities are read out.
The read-out is scaled with the rnL and rnH parameters.
Setpoint Ramps
Function The parameters SPuP / SPdn cause a gradual temperature change (rising / falling) in degrees per minute.
Activated by:
– Switching auxiliary power on
– Changing the momentary setpoint, activating setpoint 2
Setpoint display The targeted setpoint is displayed (not the currently valid setpoint) with an r at the left-hand digit.
Limit values Relative limit values make reference to the ramp, not the targeted setpoint. As a rule, no alarm is triggered for this reason.
GMC-I Messtechnik GmbH R2700 – 25
– Switching from manual to automatic operation
Page 26
GMC-I Messtechnik GmbH R2700 – 26
Adaptive Measured Value Correction
If a control loop is interfered with by periodic disturbance of the actual value, control can be improved by activating adaptive measured value correction.
Periodic disturbance is thus suppressed, without impairing the controller’s ability to react to system deviations. Correction is adapted to the oscillation
amplitude of the disturbance to this end, and only the mean value is forwarded to the controller.
Adaptation of correction to the disturbance is matched to prevailing control dynamics and requires no further parameters.
Prerequisites for improved control:
– The oscillation amplitude of the disturbance must be constant, or may only change slowly.
– The oscillation period must be less that half of the system’s delay time (parameter tu).
Due to the fact that correction greatly influences actual value ascertainment, control may also be worsened, for example if:
– Measured value deviations are irregular
– Individual measured value outliers occur
– Fluctuation is not periodic
– The disturbance is noise-like
Page 27
Suppression of Periodic Disturbances
If the measured value is superimposed with highly periodic oscillation which, for example, occurs due to cyclical withdrawal of energy from the control
loop, the manipulated value may fluctuate between its extreme values resulting in unsatisfactory control results.
If the period is constant, this oscillation can be filtered out by setting the period in the oscillation suppression tSUP parameter. This is accomplished
by means of narrow-band filtering in order to remove the signal component with the selected period, which is then disregarded for measuring signal
control. The actual values for the display are not influenced.
As opposed to adaptive measured value correction (see also page 26), oscillation can also be suppressed with this function whose periods are greater
than half of the system’s delay time.
Periods can be selected within a range of 0.3 to 25 seconds, and the filter remains inactive for other setting values.
Due to the fact that this suppression filter influences control dynamics, ascertainment of control parameters by means of self-tuning or manual
optimization has to be performed while oscillation suppression is active.
GMC-I Messtechnik GmbH R2700 – 27
Page 28
GMC-I Messtechnik GmbH R2700 – 28
Hot-Runner Control
By configuring the switching output for heating as a hot runner (Outx = Hotr), the manipulated variable is read out as a rapidly pulsating signal, i.e.
actuation cycle time is 0.1 seconds regardless of the actuation cycle time parameter setting.
With the help of this configuration, the start-up circuit and boost functions are also enabled.
Start-Up Circuit
The start-up circuit is enabled with the StUP = YES configuration, or by means of the binary input when it has been configured as follows: In1 = StUP.
The start-up circuit is only enabled for controller type PDPI. No start-up occurs for other controller types.
The start-up procedure is initiated if the actual value is more than 2° less than the start-up setpoint after auxiliary voltage is turned on (reset) or
Start-up continues until the actual value exceeds the start-up value minus 2 °C.
Dwell time then begins, which is selected with the dwell time parameter.
The actuation operation is ended as soon as dwell time has expired.
If the currently valid setpoint is still so far beneath the start-up setpoint that the condition for ending actuation cannot be fulfilled, the start-up procedure
continues indefinitely. In this case, control variable limiting by means of maximum manipulating factor would be advisable.
after the off state has been ended,
or if the actual value drops to more than 40° less than the start-up setpoint after a start-up procedure has
been completed or during dwell time.
The control variable is limited to the start-up manipulating factor.
The controller regulates temperature to the actuation setpoint.
The controller then regulates temperature to the valid setpoint.
Page 29
Temporary Setpoint Increase (boosting)
Temporarily increasing the setpoint in the hot-runner control mode can be used to free clogged mold nozzles of “frozen” material remnants.
This procedure is triggered by bit 3 of the controller function, which is set via the interface, keyboard or the binary input. The binary input must be configured as follows to this end: In1 = booS. If the binary input is not used to this end, setpoint increase is activated or stopped by simultaneosly pressing
and holding the keys . Boosting is ended by clearing this bit, or is stopped automatically after maximum boosting time has elapsed.
The relative increase is saved to the setpoint increase parameter, and the maximum duration of the increase is saved to the boost time parameter.
The increase effects the setpoint or setpoint 2 only, and has no influence on the start-up setpoint or the ramp function. The setpoint value, and not the
increase, is indicated with a b in the left digit.
Feed-Forward Control
When configured as a discontinuous or continuous-action controller (not as a step-action controller), control quality can be significantly improved by
means of feed-forward control where abrupt load fluctuations prevail, if the binary input is configured for feed-forward control (In 1 = FEFO).
– When the contact at the binary input is closed, the controller’s manipulating factor is increased by an amount of Y FF,
– and is reduced by the same value when the contact is opened.
– No function during self-tuning.
Example: If a machine requires an average of 70% heating power during production operation, but only 10% during idle time, the difference of Y FF is
set to 60%, and the binary input is only activated during production.
GMC-I Messtechnik GmbH R2700 – 29
Page 30
GMC-I Messtechnik GmbH R2700 – 30
Parameters Configuration
Press and hold X1 = lower range limit, X2 = upper rang limit, MRS = X2 – X1
Parameters Display Range Standard Comments
Upper limit value for relay A1
Lower limit value for relay A1
Upper limit value for relay A2
Lower limit value for relay A2
Setpoint 2
Ramp for rising setpoints
Ramp for falling setpoints
Heating current setpoint
(see balancing)
Proportional band heating
Proportional band cooling
Dead band H/C
Path delay time
Cooling path delay time
Read-out cycle time
al1h
al1l
al2h
al2l
sp 2
spup
spdn
amps
pb 1
pb11
dbnd
tu
tu11
tc
oFF, 1 ... MRS/2
oFF, X1 ... X2
SP L ... SP H X1
oFF, 1 ... MRS/2 per min. oFF
oFF, 1 ... MRS/2 per min. oFF
Auto, oFF, 0.1 ... A H oFF
0 ... MRS/2 50
0 ... MRS/2 50
0 ... MRS/2 0
0 ... 900 s 50 s
0 ... 900 s 50 s
0.1 ... 300 s 1 s
oFF
oFF
Relative (= default config.)
Absolute
See page 25
Not with step-action
controller
and only for
designation F2
Only with 3-step controllers
Not with 2-step controllers
only for 3-step controllers if
extra derivative action has been
configured
Page 31
Parameters Display Range Standard Comments
Proportional band heating 2
System 2 delay time
Motor run-time
Switching hysteresis
Maximum setpoint
Minimum setpoint
Maximum manipulating factor
Minimum manipulating factor
Actual value correction
Actual gain value
Decimal point position
Upper range limit, standard signal
Lower range limit, standard signal
Upper range limit, standard signal
Lower range limit, standard signal
Transformer primary current
Current monitoring threshold
Manip. factor for actuation mode
Manip. factor for feed-forward control
GMC-I Messtechnik GmbH R2700 – 31
pb 2
tu 2
ty
hyst
sp H
SP L
y H
y l
Cal
gain
dpnt
rn h
rn l
rn 1h
rn 1l
A H
HC %
y st
y ff
0 ... MRS/2 50
0 ... 900 s 50 s
1 ... 600 s 60 s Only with step-action
0 ... MRS/2 4
SP L ... X2 X2
X1 ... SP H X1
–100 ... 100% 100%
–100 ... 100% –100%
–MBU/2 ... +MRS/2 0
0 ... 500% 100%
0, 0.1, 0.02, 0.003 0
rn L ... 9999 100
–1999 ... rn H 0
rn L ... 9999 100
–1999 ... rn H 0
1 ... 200 A 50 A
def, 1 ... 100 % def
–100 ... 100% 0
–100 ... 100% 0 See page 29
With switch controller only
For limit value monitoring
and limit transducers
Limiting the setpoint entry
Not with standard signal
With standard signal only
for B5 only, input 1
only for HCur = AC and only
for designation F2
Page 32
GMC-I Messtechnik GmbH R2700 – 32
Parameters Display Range Standard Comments
Sensor error manipulating factor
Actuation Setpoint
Start-up manipulating factor
Dwell time
Boosting (setpoint increase)
Boosting time
Oscillation inhibiting
y se
spsv
y sv
t sv
spbo
t bo
tsvp
–100 ... 100% 0 See page 48
SP L ... SP H 0
–100 ... 100% 10
0 ... 300 s 0
0 ... MRS/2 0
0 ... 600 s 0
oFF, 0.3 ... 25 s oFF See page 27
For hot-runner controllers
only, see pages 28 and 29
Page 33
Balancing
Thermocouple Correction (parameter: CAL)
The correction value is selected in °C / °F. The displayed correction value is added to the measured temperature.
Cable Compensation for Pt 100 with 2-Wire Connection (parameter: CAL)
Balancing is performed manually if the sensor temperature is known:
CAL = known sensor temperature – displayed temperature value
Correction of a Temperature Gradient (parameter: GAin)
If the measured temperature value is not to be displayed, but rather a value which deviates from it, the GAin parameter is set to a value other than 100%:
temperature to be displayed in °C
GAin =
measured temperature in °C
Ascertaining the Nominal Heating Current Value (parameter: AMPS)
By setting AMPS = Auto, control is interrupted for about 1 second, heating is activated and heating current is measured and saved as the nominal
value. If the value is not equal to zero, heating current monitoring is automatically activated.
GMC-I Messtechnik GmbH R2700 – 33
• 100%
Page 34
GMC-I Messtechnik GmbH R2700 – 34
Program Controller
Activation At the configuration level with ProG = EnA
Function The current setpoint is determined exclusively by the program.
Eight programs with twelve segments each are saved to the controller and can be selected.
The functions which otherwise influence the setpoint, such as setpoint swapping and setpoint ramps, as well as external
setpoint with master controller and the start-up circuit and boosting for hot-runner control, are without function.
Program Each of the twelve program segments is defined by means of segment duration, targeted setpoint and the control tracks, and
Sequence StoP The program has been completed or stopped, or hasn’t yet been started (after a reset).
the program can be set to end upon completion of the first through the eleventh segment as well.
The controller and the actuator outputs are inactive, relative limit value errors are suppressed.
The momentary setpoint is set to the actual value.
The program is started over again after it has been stopped.
run.X The program has been started, possibly automatically after a reset (X stands for the current segment).
The controller and the actuator outputs are active, relative limit value errors are enabled.
Segment 1 is always executed when the program is started, and the initial setpoint is the actual value.
The program can be started and stopped with a binary input: In... = Prun.
Wt.X Same as for run.X.
If “wait until setpoint is reached” has been selected (with WAit = YES), the program waits until system deviation
amounts to only 2 °C before activating the next segment.
Page 35
hLt.X The running program has been halted, the momentary setpoint has been frozen (X stands for the current segment).
The program can be halted with a binary input: In... = PhLt.
Control tracks Control tracks can be activated for the duration of the segments. They can be assigned to available switching outputs with the
Control parameters When the program controller is active, the control parameters should not (cannot) be set manually of by means of self-tuning,
Display The displays are supplemented as follows at the operating level:
Operation The sequence can be controlled in the status display with the help of the up and down scroll keys, if it has not been configured
GMC-I Messtechnik GmbH R2700 – 35
setting: Out... = tr...
The states run and hLt can also be assigned to available switching outputs with the settings: Out... = Prun and Out... = PhLt.
because a constant setpoint is required for usable optimization results.
Select ProG = diS to this end.
The momentary setpoint appears at the setpoint display when a program is running, and only dashes appear after the
program has been ended because there is no longer an active setpoint. The setpoint cannot be changed.
A status display also appears. Current status, namely StoP, run.X, Wt.X or hLt.X (X stands for the current segment), appears
at the bottom display.
to binary inputs.
In order to avoid erroneous settings, changes must be acknowledged within 5 seconds with the key.
The change can be discarded by pressing the key.
Page 36
GMC-I Messtechnik GmbH R2700 – 36
+
Program Entry
Press and hold simultaneously
Configuration Display Selection Standard Comment
Program selection
Performance after reset
Wait until setpoint is reached
Type of segments
Unit of time for segments
Duration of segment 1
Target setpoint, segment 1
Control tracks, segment 1
Duration of segment 2
Target setpoint,segment 2
Control tracks, segment 2
...
ProG
Auto
wait
segs
tIME
MS 1
SP 1
tr 1
MS 2
SP 2
tr 2
no. 1 Load program 1
... no. 8 Load program 8
Put1 Save current program
to program 1
...Put8 Save current program
to program 8
cLr Delete current program
StoP / run StoP Valid for all 8 programs
no / yes no Valid for all 8 programs
ramp / step Ramps/increments rAMP Valid for all 8 programs
M-S / H-M Seconds / minutes M-S Valid for all 8 programs
0:00 ... 99:59 0:00
SP L ... SPH 0°C
---- ... 4321 ----
End End of program
0:00 ... 99:59
SP L ... SP H 0°C
---- ... 4321 ----
no. 1
Specified numbers designate active control tracks.
End If End is selected, no further entries are
displayed.
Page 37
Configuration Display Selection Standard Comment
Setpoint
Actual value
Control track 1
Control track 2
Duration of segment 12
Target setpoint, segment 12
Control tracks, segment 12
Example:
Desired temperature-time profile:
MS12
SP12
tr12
End, 0:00 ... 99:59 End
SP L ... SP H 0 °C
---- ... 4321 ----
The pertinent program:
Segment 1234567
Duration MS 1...7 (HM 1...7 ) 0:40 0:30 0:20 0:50 0.00 0:50 End
Setpoint SP 1...6 100 100 180 180 120 120 —
Tra ck s tr 1...6 ---1 ---1 ---- --2- --2- --2- —
GMC-I Messtechnik GmbH R2700 – 37
Page 38
GMC-I Messtechnik GmbH R2700 – 38
Manual Optimization
Parameters Pb I, Pb II, tu and tc are determined by means of manual optimization in order to maintain optimized controller dynamics. A start-up test or
an oscillation test is performed to this end.
Preparation
– Complete configuration (page 14) and parameter settings (page 30) must first be performed for use of the controller.
– Deactivate the program controller, because a constant setpoint is required for the optimization procedure.
– The actuators should be deactivated with the Off or Manual Operation function (page 13).
–A recorder must be connected to the sensor and adjusted appropriately to prevailing circuit dynamics and the setpoint.
– For 3-step or split range controllers, on and off time of the switching output for heating or the continuous output must be recorded (e.g. with an
additional recorder channel or a stopwatch).
– Configure limit transducer (Cout = OnOF).
– Set read-out cycle time to the minimum value: tc = 0.1.
– If possible, deactivate manipulating factor limiting: YH = 100.
– Reduce (or increase) the setpoint so that overshooting and undershooting do not cause any unallowable values.
Performing the Start-Up Test
– dbnd = MRS Setting for 3-step and split range controllers (switching output for cooling may not be triggered)
dbnd = 0 Setting for step-action controllers (switching output for cooling must be triggered)
– Start the recorder.
– Activate the actuators with Automatic Operation.
– Record two overshoots and two undershoots. The actuation test is now complete for 2-step, continuous-action and step-action
controllers.Continue as follows for 3-step and split range controllers:
–Set dbnd to 0 in order to cause further overshooting with active switching output for cooling. Record two overshoots and two undershoots.
– Record on-time T
and off-time TII for the last oscillation at the switching output for cooling or the continuous output.
I
Page 39
Evaluating the Start-Up Test
P
Δt
Δx
x
ss
T
I
T
II
dbnd = 0dbnd = MRS
(3-step and split range controllers only)
– Apply a tangent to the curve at the intersection of the actual value and the setpoint, or the cut-off point of the output.
– Measure time Δt.
– Measure oscillation amplitude x
, or for step-action controllers overshooting Δx.
ss
Parameter Value
tu 1.5
tc tu / 12 tY / 100
Pb I x
Pb II – Pb I
Parameters 2-step controller 3-step controller
If manipulating factor limiting was active, the proportional band must be corrected:
ss
• (T
I
• Δt Δt – (tY / 4)
2 • x
ss
Δx / 2
/ TII)–Pb I • (TI / TII)–
Cont.-action controller Split range controller Step-action controller
YH positive: Pb I multiply by 100% / YH
YH negative: Pb II multiply by -100% / YH
GMC-I Messtechnik GmbH R2700 – 39
Page 40
GMC-I Messtechnik GmbH R2700 – 40
T
I
T
II
x
ss
Performing the Oscillation Test
If a start-up test is not possible, for example if neighboring control loops influence the actual value too greatly, if the switching output for cooling must be
active in order to maintain the actual value (cooling operating point), or if optimization is required directly to the setpoint for any given reason, control parameters can be determined by means of sustained oscillation. However, calculated values for
tu
may be very inaccurate in this case under certain circumstances.
– Preparation as described above. The test can be performed without a recorder if the actual value is observed at the display, and if times are
measured with a stopwatch.
– dbnd = 0 Setting for 3-step, split range and step-action controllers
– Activate the actuators with Automatic Operation, and if applicable start the recorder. Record several oscillations until they become uniform in size.
– Measure oscillation amplitude x
– Record on-time T
and off-time TII for the oscillations at the switching output for heating or the continuous output.
I
.
ss
Evaluating the Oscillation Test
Parameter Value
1
tu
0.3 • (TI + TII)0.2 • (TI + TII – 2tY)
tc tu / 12 tY / 100
Pb I x
Pb II – Pb I
Parameters 2-step controller 3-step controller
1
If either T
or TII is significantly greater than the other, value tu is too large.
I
x
ss
(T
• TII
ss
+ TII)
I
• (T
/ TII)–Pb I • (TI / TII)–
I
• x
2 • xss • TII
2
ss
(T
+ TII)
I
x
ss
Cont.-action controller Split range controller Step-action controller
/ 2
Page 41
Correction with manipulating factor limiting YH positive: Pb I multiplied by 100 % / YH
YH negative: Pb II multiplied by -100% / YH
Correction for step-action controllers in the event that T
tY
Pb I multiplied by , if T
The value for tu is very inaccurate in this case. It should be optimized in the closed loop control mode.
• tY tY • tY
• T
T
I
is smaller, or by , if TII is smaller.
I
I
or TII is smaller than tY:
I
TII • T
II
Closed Loop Control Mode
The closed loop control mode is started after self-tuning has been completed:
– Configure the desired control algorithm with controller type (Cout).
– Adjust the setpoint to the required value.
– For 3-step, split range and step-action controllers, the dead band can be increased from dbnd = 0, if control of the switching outputs (or continuous
output) changes too rapidly, for example due to an unsteady actual value.
GMC-I Messtechnik GmbH R2700 – 41
Page 42
GMC-I Messtechnik GmbH R2700 – 42
Cur
rent
Current
Current
Start
Abort
Slow Blinking
or
Self-Tuning
Self-tuning is used to optimize controller dynamics, i.e. the Pb I, Pb II, tu and tc parameters are set.
Preparation
– Complete configuration must be performed before
– The setpoint value is adjusted to the value which is required after
– Deactivate the program controller.
Start
– Self-tuning can only be started if the operation of self-tuning has been enabled (configuration:
– Briefly pressing simultaneously at the operating level triggers self-tuning. Self-tuning cannot be
started in the “actuator” or “limit transducer” mode.
– tun1...tun9 blinks at the display at all levels during self-tuning.
– The controller is switched to the automatic operating mode after self-tuning has been successfully completed.
– In the case of 3-step controllers, cooling is activated if the upper limit value is exceeded in order to prevent overheating. Self-tuning then performs an
oscillation test around the setpoint.
Sequence
– The setpoint which is active when tuning is started remains valid and can no longer be changed.
– Activation or deactivation of setpoint 2 does not
become effective.
– Selected setpoint ramps are not taken into consideration.
– If started at the operating point (actual value approximates the setpoint value), overshooting cannot be avoided.
– There are no time limitations for the sequence. Self-tuning may take quite a long time, depending upon the control system.
Abort
– Self-tuning can be aborted at any time with the keys (→ automatic operating mode), or by switching off with the key .
– If an error occurs during self-tuning, the controller no longer reads out an actuating signal. In this case, self-tuning must be aborted with the
Self-tuning is enabled upon shipment from the factory (default setting). Starting the self-tuning function can be disabled in the configuration.
keys. Additional information regarding error messages is available upon request.
self-tuning is started.
self-tuning.
tunE
=
EnA
).
Page 43
Data Logger
• The data logger has enough capacity for 3600 sampled value pairs including actual values and manipulated variables. The logger sampling cycle
can be configured within a range of 0.1 to 300.0 seconds. This results in recording times of 0.1 to 300 hours (6 minutes to 12 days).
• Recording must be started over again each time the device is reset, and data are lost if auxiliary power fails.
• Recording can be started via a binary input, with the setting LoGG = YES in the configuration or via interface.
• After the ring buffer has been filled to capacity with 3600 entries, the oldest values are deleted as new ones are recorded.
• Entries can only be read out via the bus interface or the infrared interface. See the interface description for detailed information.
GMC-I Messtechnik GmbH R2700 – 43
Page 44
GMC-I Messtechnik GmbH R2700 – 44
Actual ValueSetpoint
Hysteresis adjustable with HYSt parameter
Limit Value Monitoring
Alarm Relay, NO Contact
Alarm Relay, NC Contact
AL L AL H
Start-up inhibiting: Alarm suppression is active during start-up (configuration: ALx = SUP) until temperature has exceeded the lower limit level for the
first time. During cooling, suppression is active until temperature has fallen below the upper limit value for the first time. It is active when auxiliary power
is activated, if the current setpoint is changed or setpoint 2 is activated, or if switching takes place from off to automatic operation.
AL L AL H
Relative Limit Values
Absolute Limit Values
Limiter
If a controller needs to be deactivated in the event of a limit value violation within the control loop, the controller must be configured as a limiter (
The limiter can be combined with all controller types.
– The limiter responds to the second limit value, which must be set and configured accordingly.
– The controller is deactivated as soon as a second limit value is exceeded. The controller becomes active again when there are no more limit value errors.
– If the controller is to remain continuously deactivated, the alarm memory must be activated (configuration: AL2 = Stor).
– The limit value errors must then be cleared in order to reactivate the controller. This is accomplished by pressing the key and acknowledging
the Quit AL display within 5 seconds with the key.
– These errors can also be cleared with the binary input, if it has been configured to clear limit value errors (In 1 = quit).
LIM
=
YES
).
Page 45
Heating Current Monitoring
Current measurement Heating current is acquired with an external transformer. This process is compatible with R2600 with GTZ 4121 for alternat-
ing and 3-phase current. In the case of designation F2, acquisition is also possible with a commercially available xA transformer: 50 mA (for alternating current only).
Primary current is set with the AH parameter.
Function An alarm is triggered if the current setpoint is fallen short of by more than 20% with activated heat (control output active), or
if current is not “off” when the heat is switched off. The alarm is not triggered until heating current is high enough when the
switching output for heating is active, and
Monitoring is only active if discontinuous heating has been selected in the configuration, and not in the case of continuous
and step-action controllers.
Threshold The default monitoring threshold of 20% can be modified with parameter HC% for the alternating current input (Hcur = AC).
AMPS current setpoint Heater phase current is entered for this parameter. AMPS can be set to Auto for automatic adjustment with the heater
switched on. The measured current value is saved to memory.
Activation Parameter AMPS not set to oFF.
GMC-I Messtechnik GmbH R2700 – 45
when current drops to zero when the switching output for heating is inactive.
Page 46
GMC-I Messtechnik GmbH R2700 – 46
Heating Circuit Monitoring
– Function – Can be set to active or inactive with the LbA configuration
– Without external transformer, without additional parameters
– Assumes correct optimization of tu and Pb I control parameters!
Due to the fact that self-tuning generates other results in certain cases when heating circuit monitoring is activated, heating circuit monitoring must be activated before self-tuning is started.
– In the event of manual optimization or subsequent adaptation of control parameters, the lower limit for the tu parameter
must be observed:
Minimum tu =
Δϑ
⁄ Δt = maximum temperature rise during start-up
– Error message LE appears after approximately 2 times tu, if heat remains on at 100% and measured temperature rise is
too small.
– Monitoring is not active:
Where controller type = limit transducer, actuator or step-action controller
During self-tuning
With standard signal input (designation B2)
Where manipulating factor limiting YH < 20%
2·Pb I
Δϑ
⁄ Δt
Page 47
Alarm History
• The alarm history includes 100 error status entries with the respective time stamps. Whenever at least one entire bit of the overall error status
changes, the complete error status is saved with the current time stamp.
• Recording is started over each time the device is reset, and data are lost if auxiliary power fails. Recording can be activated with the setting
HISt = YES in the configuration, or via interfaces.
• After the ring buffer has been filled to capacity with 100 entries, the oldest entry is deleted each time a new one is recorded.
• Entries can only be read out via the bus interface or the infrared interface. See the interface description for detailed information.
GMC-I Messtechnik GmbH R2700 – 47
Page 48
GMC-I Messtechnik GmbH R2700 – 48
Controller Sort
Manipulating Factor Read-Out
2 or 3-step
YSE = –100/0/100% YS E ≠ –100/0/100%
–100/0/100%
If the controller has settled in:
last “plausible” manipulating
factor, If not:
YSE
Step Control outputs inactive
On/Off control
YSE
Actuator No response to error
Error Messages
Responses in the event of an error:
1. Alarm output A1 is activated; its performance is determined by the configuration (see page 17).
2. LED A1 blinks at all levels, but the error message only appears at the operating level (upper display blinks).
3. Exceptions and additional information are included in the following table:
Display Error Message Source Response Remedy
sensor error high
sensor error low
current error Current transformer has reversed
Heating current
display
no tune
tune error 2
Broken sensor or
actual value > upper range limit
Sensor polarity reversed or
actual value < lower range limit
polarity, is unsuitable or defective
Self-tuning cannot be started (controller
sort: “actuator” or “limit transducer”).
Disturbance in self-tuning sequence in
step 1 ... 9 (in this case step 2)
Same as heating current monitoring alarm, continues to
control temperature
No response to error, error display remains until
acknowledged (see below)
Control outputs inactive, self-tuning must be aborted with
the and keys
1
2
–
3
Page 49
Display Error Message Source Response Remedy
1. Eliminate sensor error.
2. Inspect current transformer.
3. Avoid disturbances which impair the self-tuning sequence, e.g. sensor
errors.
4. Close the control loop: Check the sensor, the actuators and the heater for
correct functioning. Check sensor-heater assignments (wiring). Correctly
optimize control parameters
tu
and
Pb I
.
5. Restore default configuration and default parameters, and then
reconfigure or load user-defined default settings.
6. Arrange for repair at authorized service center.
Remedies
loop error
parameter error
digital error
analog error
Measured temperature rise is too small
with heat on at 100%
Parameter not within permissible limits Control outputs inactive, the parameter level is disabled
Error detected by digital component
monitoring
Hardware error detected by analog
component monitoring
Control outputs inactive, error message remains until
acknowledged (see below)
Control outputs inactive 6
Control outputs inactive 6
4
5
Error Acknowledgement
Errors are acknowledged by pressing the key and acknowledging the Quit AL display within 5 seconds with the key.
GMC-I Messtechnik GmbH R2700 – 49
Page 50
GMC-I Messtechnik GmbH R2700 – 50
Error mask
With the default setting (configuration A1M1 = def), relay output A1 reads out alarms from limit value monitor 1, as well as all other errors (sensor
errors, heating current errors etc.), and relay output A2 only reads out alarms from limit value monitor 2.
The individual error messages can be assigned to outputs A1 and A2 in a targeted fashion with the error masks. The values must be added and entered
hexadecimally to this end. (Configuration is more user friendly with the Compact Config PC tool.)
Device error mask (A1M2 and A2M2)
Value Meaning Display default
0002
0004
0010
0020
0040
0080
0100
0200
Heating current overrange
Cold junction error
Heating current not off
Heating current too low
Heating current too high
CRC-Error
Memory error
Parameter error
CE A1
CJE A1
Blinks A1
Blinks A1
Blinks A1
––
FE A1
PE A1
Page 51
Channel error mask (A1M1 and A2M1)
Wert Meaning Display default
nd
0001 Broken sensor, 2
0002 Reversed polarity, 2
0004 Analog error AE A1
0008 Broken sensor SE H A1
0010 Reversed polarity SE L A1
st
0020 1
0040 2
0080 1
0100 2
0200
Lower limit value fallen short of Blinks A1
nd
lower limit value fallen short of Blinks A2
st
upper limit value exceeded Blinks A1
nd
upper limit value exceeded Blinks A2
Parameter impermissible for entry via interface
0800 Heating circuit error LE A1
1000 Self-tuning start-up error no t –
2000 Self-tuning error or abort tE X A1
GMC-I Messtechnik GmbH R2700 – 51
input SE H A1
nd
input SE L A1
–
Page 52
GMC-I Messtechnik GmbH R2700 – 52
Replacing an R2600 Controller with an R2700 Controller
Replacement with regard to feature A
R2600 R2700
Feature
A1 (A3)
A1 (A3)
A1 (A3)
A1 (A3)
A2, A4 (A3)
A2, A4 (A3)
A2, A4 (A3)
A2, A4 (A3)
A3
A3
A3 Continuous Relay
A3 — Continuous 4x3x
A3 Transistor Continuous 8x4x A4 Out1 = HEAt Out2 = oFF Cont = CooL
A3 Relay Continuous 8x4x A6
(A3) The continuous output is used for reading out the actual value and/or setpoint value. For R2700, feature A4 or A6 is to be selected.
* 0xxx may also be 1xxx, 2xxx, 3xxx; 4xxx may also be 5xxx, 6xxx, 7xxx; 8x4x may also be 9x4x, Ax4x, bx4x.
• When configured as a step-action controller (R2600, features A2, A4), the configuration of the corresponding output is not Outx = CooL in the case of the R2700, but rather Outx = HcLo.
Heating Output Cooling Output
Tra ns i st or — 0 x2 x
Relay — 0x2x
— Transistor 0x3x
— Relay 0x3x
Transistor Transistor
Relay Transistor
Tra ns i st or R el ay
Relay Relay
Continuous —
Continuous Transistor
CnF1 *) Feature Configuration
0x4x, 0x5x
0x4x, 0x5x
0x4x, 0x5x
0x4x, 0x5x
4x2x
4x4x, 4x5x
4x4x, 4x5x
A1 (A4)
Out1 = HEAt Out2 = oFF
A3 (A6)
Out1 = oFF Out2 = oFF Out3 = HEAt Out4 = oFF
A1 (A4)
Out1 = CooL Out2 = oFF
A3 (A6)
Out1 = oFF Out2 = oFF Out3 = CooL Out4 = oFF
A1 (A4)
Out1 = HEAt Out2 = CooL
A3 (A6)
Out1 = oFF Out2 = CooL Out3 = HEAt Out4 = oFF
A3 (A6)
Out1 = HEAt Out2 = oFF Out3 = oFF Out4 = Cool
A3 (A6)
Out1 = oFF Out2 = oFF Out3 = CooL Out4 = HEAt
A4
Out1 = oFF Out2 = oFF Cont = HEAt
A4
Out1 = oFF Out2 = CooL Cont = HEAt
A6 Out1 = oFF Out2 = oFF Out3 = oFF Out4 = Cool Cont = HEAt
A4
Out1 = oFF Out2 = oFF Cont = CooL
Out1 = oFF Out2 = oFF Out3 = HEAt Out4 = oFF Cont = CooL
Page 53
Replacement with regard to B and C features:
Attention!
!
• Features B1 through B5 are identical for both devices.
• Features C1 and C2 for the R2600 are feature C1 for the R2700.
• Feature C3 cannot be replaced with the R2600.
• Feature C4 for the R2600 is feature C2 for the R2700.
The following functions cannot be replaced:
• Position acknowledgement display for step-action controller (R2600, feature A4 does not exist). Step-action controller function is available.
• Feature B5 cannot be replaced with the R2600.
• 24 V AC auxiliary power (R2600, feature C3) not possibile.
• The bus interface cannot be switched to RS 232 operation.
The following rewiring is required:
• The connector terminals on the R2600 can still be used, because the pin assignments are identical except for a few exceptions. The two plug
connectors can be pulled out after loosening the lacquered screws.
• Terminals 20 and 21 at the RS 485 bus interface have to be reversed.
Converting Parameters
In the case of the R2700, the proportional bands are specified in the unit of measure of the controlled variable, instead of as a percentage of the
measuring range span as is the case with the R2600. Conversion is accomplished as follows: Pb (R2700) = Pb (R2600) x MRS (R2600) / 100%.
To ensure radio interference suppression, the protective conductor and/or control cabinet grounding
GMC-I Messtechnik GmbH R2700 – 53
must
be connected to terminal 18.
Page 54
GMC-I Messtechnik GmbH R2700 – 54
Technical Data
Ambient Conditions
Annual mean relative humidity, no condensation
Ambient temperature Nominal range of use
Auxiliary Voltage
Nominal Value
110 V AC
230 V AC
24 V DC 20 to 30 V DC —
Relay output Floating NO contact, common phase for switching
Switching capacity AC/DC 250 V, 2 A, 500 VA / 50 W
Service life
Interference suppression Utilize external RC element (100 Ω - 47 nF) at
Nominal Range of Use Power Consumption
Voltage Frequency
85 to 265 V AC 48 to 62 Hz
Operating range
Storage range
outputs A1 and A2
> 5 •105 switching cycles at nominal load
contactor
75%
0 °C ... + 50 °C
0 °C ... + 50 °C
–25 °C ... + 70 °C
Typically 1.5 W
Electrical Safety
Safety class II, panel-mount device per DIN EN 61010-1, section 6.5.4
Fouling factor 2, per DIN EN 61010-1, section 3.7.3.1 and IEC 664
Measuring category II, per DIN EN 61010 appendix J and IEC 664
Operating voltage 300 V per DIN EN 61010
EMC interference emission
EMC interference immunity
EN 61326
EN 61326
Refer to the data sheet for complete technical data (3-349-382-03).
Page 55
CompactConfig Configuration Tool
This software (languages: D, GB, F) runs under Windows XP, and allows for
• Online and offline parameter settings and configuration
• Saving and printing of data records
• Automatic generation of a wiring diagram
• Online viewing of the control process
• Read-out and storage of values from the data logger and from alarm history
• Administration of 4 parameter sets
• Programming of the program section (8 programs with 12 segments each)
The Z270I IR adapter is required in order to use the configuration tool.
Further information regarding accessories and the latest version of the software, which can be downloaded free of charge, are available on the Internet at:
http://www.gossenmetrawatt.com (→ Products → Controllers; Control Systems → Compact Controller → R2700)
GMC-I Messtechnik GmbH R2700 – 55
Page 56
Edited in Germany • Subject to change without notice • PDF version available on the Internet
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg •
Germany
Telefon+49 911 8602-111
Telefax +49 911 8602-777
E-Mail info@gossenmetrawatt.com
www.gossenmetrawatt.com
Loading...