Samson Trovis 6400 Service manual

Automation System TROVIS 6400
Compact Controller TROVIS 6494
Edition June 1994 Mounting and operating instructions
EB 6494 E

Contents
1. Description
1.1 Version
1.2 Technical data
2. Installation
3. Electrical connections
4. Operation
4.1 Control panel, displays and operating elements
4.2 Operation of the three levels
4.2.1 Operating level
Modify setpoint W1
Display sensor line breakage
4.2.2 Parameterization level
Determine and modify the control parameters
Open the parameterization level
Proportional-action coefficient
P
(Kp)
Integral-action (reset) time
I
(Tn)
Derivative-action (rate) time
d
(Tv)
Derivative-action (rate) gain
dP
Output variable limits
Y__
and
Y
—
Working point
YP
Limit values
1A
and
2A
Differential gap
1H
and
2H
Duration of switching period and motor operating time
t1
Dead band (neutral zone)
td
Hysteresis
th
4.2.3 Configuration level
Determine and modify controller functions
Open the configuration level
Select input signal
In
Measuring range limits
In__
and
In
—
Decimal point
Ind
Select the current or voltage ranges of controlled variable x with
In0
Unit of temperature
Int
Digital filter
InF
Select the input circuitry of the D (derivative)-action component with
dI
Select setpoint
SP
Setpoint ramp
SPr
Inhibit (HOLD) modification of setpoint
SPH
Lock (HOLD) the MANUAL/AUTOMATIC key
YH
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Contents
Select controller output
Y
Operating direction
Yr
Select the current range of controller output Y with
Y0
Safety output (restart) value
YSt
Limit alarm condition for switching output Y1
Switching output Y1 as break or make contact
Y1C
Limit alarm condition for switching output
Y2
Switching output Y2 as break and make contact
Y2C
Adaption (self-tuning)
AdP
Enter code numbers
CPA
and
CCO
Code number for servicing
Figure, setpoint ramp
SPr
5. Switching outputs
Y1
and
Y2
5.1 Three-step controller with internal feedback (Y = 1)
5.2 Limit contacts
5.2.1 General definition
5.2.2 Assignment of the limit alarm conditions for switching outputs
Y1
and
Y2
5.2.3 Monitor output signal Y
5.2.4 Pulse-modulated on-off controller output at switching output
Y1
and/or
Y2
5.2.5 On-off pulse-modulated controller output with limit alarm
5.2.6 Two pulse-modulated on-off switching outputs
6. Start-up procedure
EEPROM version
6.1 Configure the different controller outputs
6.1.1 Continuous-action controller (
Y
=
0
)
6.1.2 Three-step controller with internal feedback (
Y
=
1
)
6.1.3 Controlled variable x as recorder input (
Y
=
2
)
6.2 Optimize the control parameters
6.3 Adaption (self-tuning)
6.4 Checklist
Figure depicting front view, see folding page on back cover
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1. Description
TROVIS 6494 is a digital controller integrating many sophisticated functions into a single com-
pact module used to automate plants used in industrial applications and process engineering.
Its well-thought functional design, which takes user needs into mind, allows diverse control cir-
cuit arrangements to be configured. TROVIS 6494 can be effectively used in a wide-range of
applications as a either a continuous-action controller, on-off (two-step) controller or three-step
controller with the option of P (proportional), PI (proportional-plus-integral), PD (proportional-
plus-derivative) or PID (proportional-plus-integral-plus-derivative) action.
Self-tuning, a standard option, uses the built-in intelligence capabilities to automatically deter-
mine and set the appropriate control parameters.
Operation of this advanced controller is designed according to the concept of user friendliness
and uses the following three-level operating structure: 1) operating level (standard operation),
2) parameterization level and 3) configuration level.
The first level, the operating level, contains visual displays for standard control operation and
can be accessed at any time, whereas the parameter and configuration levels are protected by
user-definable code numbers. Functions in the second level, the parameterization level, include
modification of control parameters and optimum adaption to the controlled system. Selection of
controller functions is facilitated in the third level, the configuration level.
Controller input options include the following: Pt 100 resistance thermometers, Ni 100 resist-
ance thermometers and standardized current/voltage signals.
The controller’s command variable, to be called the setpoint (SP) in the remainder of this text for
reasons of conformity, can be selected between setpoint W1 and setpoint W2 via a key, or by
means of a binary signal.
Bumpless transfer in the respective operating mode (MANUAL or AUTOMATIC) is facilitated by
means of the MANUAL/AUTOMATIC key.
1.1 Version
This compact controller is delivered in panel-mount design according to DIN 43 700 (dimen-
sions of front frame: 48 mm x 96 mm) as the following versions:
Universal input options:
Ni 100 or Pt 100 resistance thermometer in three-wire circuit, standardized mA/V signals
Standard controller output:
Continuous/on-off/three-step/limit contact
Power supply:
100 to 253 V AC (TROVIS 6494-0111)
20 to 30 V AC (TROVIS 6494-0121)
Connection:
Crimp contacts or optional screw terminals
This manual applies to controllers implementing firmware version 1.00 or later
WARNING
Assembly, commissioning and operation of this controller may only be performed
by experienced personnel.
4

Fig. 1 ⋅Functional structure of controller
W2
ext. BE
SP
4
1,2
2,3
01,2,3
X
+
_
In
In0 InF
Y0
Y
Y
Y0,2
1
0
1,2
0,2
YSt
YH
-
-
YHd
SPr
dP
d
P
P
I+
dI
P
I
YPID
P
Yr
W1
SPh
D
Output analog
0(4) to 20 mA
Y or X
Three-step
on-off
-Switching
-Clocked
for
Y
=
1
————————
Limit contacts
for
Y
=
0,2
MANUAL/
AUTOMATIC
key
Safety output
(restart) value
Operating direction
Setpoint key W1/W2
Inhibition (HOLD) of setpoint modification
On
Setpoint ramp
Digital filter
5

1.2 Technical data
Input options Controlled variable x
d.c. current signal 4(0) to 20 mA Ri = 50 Ω
d.c. voltage signal 2(0) to 10 V Ri > 100 kΩ
Resistance thermometer Pt 100 (three-wire circuit)
Measuring ranges –100.0 to 400.0 °C
–30.0 to 150.0 °C
Resistance thermometer Ni 100 (three-wire circuit)
Measuring ranges –60.0 to 180.0 °C
–20.0 to 90.0 °C
External changeover of the setpoint
Binary input for selection of setpoint W1 – W2 with 24 V d.c.
Signal 0 V →W1; 24 V →W2 (select using
SP
) or
external restart of the setpoint ramp
Controller outputs Standardized output signals
Standardized current signal 4(0) to 20 mA, load RB < 650 Ω
Switching outputs
Y1
and
Y2
a.c. voltage contacts 24 to 250 V a.c./0.5 A
CAUTION:
Never apply d.c. voltage
Power supply 100 to 253 V a.c.
48 to 62 Hz, 7 VA or optionally 20 to 30 V AC/DC 7 VA
Permissible temperature Ambient 0 to 50 °C Shipping and storage 0 to 70 °C
Measuring accuracy Linearity error Zero error Span error
mA, V, Pt 100, Ni 100 0.2 % 0.2 % 0.2 %
Temperature effect Zero error Span error
Pt 100, Ni 100 0.3 % / 10 °K 0.3 % / 10 °K
mA, V 0.2 % / 10 °K 0.2 % / 10 °K
Utilization category
according to DIN 40 040 Humidity rating F
Degree of protection IP 54 (front side), IP 20 (encapsulation)
Power failure All control parameters and configuration blocks are stored in a
non-volatile EEPROM protected against power down (i.e. no-
battery design)
Weight 0.3 kg
6

2. Installation
TROVIS 6494 is smartly engineered as a panel-mount unit, the front dimensions of which com-
pactly measure 48 x 96 mm2. A panel cut-out of 45+0.6 x 92+0.8 mm2is to be fabricated for as-
sembly of the plastic enclosure. After sliding the controller in the panel cut-out, the supplied
clamps depicted in Fig. 3 are to be locked in place at the top and bottom in the accommodating
pins of the enclosure. A screw driver can consequently be used to turn the threaded rods, clamp-
ing the controller’s front frame against the panel.
Fig. 2 ⋅Dimensions in mm (inch)
Fig. 3 ⋅Assembly
48 (1.89)
96 (3.78)
123 (4.84)
111 (4.37)
89.5 (3.52)
Front Front
Pivot 2)
Lock in
place
3)
Screw tight
1)
Inserting on pivot
and turning
7

3. Electrical connections
The easy-to-install compact controller is equipped with plug-type connectors (snap-in contacts)
for lead sizes 0.3 to 0.8 mm2and an insulating diameter of 1.3 to 2.4 mm2or screw terminals
for lines 0.5 to 1.5 mm2. When connecting the electric leads, note the pertinent VDE 0100 regu-
lations and the currently valid regulations mandated by the country where the controller is in-
tended for use.
Wiring information
The signal and sensor leads are to be isolated from those of the controller and power supply.
To avoid measuring errors when radio interference is present, use shielded lines for signals and
sensors.
The power supply lines of each controller are to be led separately to the corresponding distribut-
ing bus bar.
Suppress contactor circuits located in the vicinity against interference using an RC element.
Fig. 4 ⋅Terminal assignment
1C
L N
5F7H5F7H
+_
Y1 Y2
LN
+_
5EDC4C 3
+
-
+
-
2B
+-
mA V
A
B
C
D
E
G
H
1
2
3
4
5
7
8
X1 X2
H7F5C1
X1 X2
mA
A1
+-
51E423C/D A/B
A
B
C
E
F
G
H
1
2
3
5
6
7
8
Snap-in Contacts
Screw terminals
Code
Back
Back
Power supply
100 to 253 V a.c.
or 24 V a.c./d.c. 2 x limit contacts (TRIAC) Three-step switching output
for a current >0.5 A requires
contactors or relays
Note:
Y1 or Y2 can only be operated with
a.c. voltage. Note correct phase
connection of power supply.
Pt 100/Ni 100 4(0) to 20 mA 2(0) to 10 V
Terminals X2
Controller input (controlled variable x)
Binary input BE
0/24 V Controller output (output signal y)
(continuous) 4(0) to 20 mA
Note:
When using a three-step switching output or limit contacts,
the continuous controller output is available as analog output
for controlled variable x.
Terminals X1
8

Fig. 5 ⋅Diagram of connections
WARNING
Always disconnect the power supply lines prior to plugging/removing the plug
connectors.
If this is ignored, the glass fuse Type T63 mA/250 V (order no. 8834-0298) con-
tained on the power board in the device may be required to be exchanged.
5
E
D
4
C
3
C
+
+
I
U
V
mA
PE PE PE
HE
HE
+ - + -
Pt 100
Ni 100
_
_
LN
1C
BE
2B
1
A
F
5
7
H
+
Y
Y1
Y2
_
t
A
PE
PELN
+
_
24 V DC
+ _
+ _
x-Recorder
4(0) to 20 mA
Y1 and Y2 can defined by the user for use
as limit values or motor drive
9

4. Operation
4.1 Control panel, displays and operating elements
1 Controlled variable display (top display)
Controlled variable x, sometimes referred to as the Process Variable PV, is displayed in the
operating level. The value of the selected entry option is can be viewed in the parameteriza-
tion and configuration level.
2 Setpoint (SP) display
The current setpoint is displayed in the operating level. The display mode can be modified
in the following sequence by actuating the operating key (7): setpoint W1, control deviation
(error) XD, output variable Y, setpoint W2.
Configuration blocks and parameters values are presented in both the configuration and
parameterization levels, resp.
3 Control deviation
Whenever xd is greater than 0.9 % or less than –0.9 %, the red LED (light-emitting diode) il-
luminates.
4 Display of switching outputs Y1 and Y2
Two red LEDs display indicate the circuit state of the three-step/on-off controller output, or
the limit alarms.
Fig. 6 ⋅Front view
W1
XD
XD
Y
W2
Y1
Y2
°C
W2
11
1
2
7
5
6
9
8
4
3
10
10

5 Cursor keys
Increase displayed value
Decrease displayed value
Function in the operating level (standard operation):
After selecting setpoint W1 or W2 →(modify setpoint directly), acknowledge the value
using ENTER key (8).
In MANUAL operating mode:
Direct adjustment of output signal Y.
Function in the parameterization/configuration level:
Selection of the individual entry options in both directions.
Adjustment of the related numeric value in the top display (1).
6 MANUAL/AUTOMATIC changeover
When selecting manual adjustment to either controller output Y or switching outputs Y1 and
Y2, the yellow LED located in the key illuminates:
Using the MANUAL/AUTOMATIC key, the controller can be bumplessly switched over from
MANUAL to AUTOMATIC operation (or vice versa).
The MANUAL setting allows the user to directly operate the connected control valve. Con-
troller output value Y can be modified using cursor keys (5) and . In MANUAL opera-
ting mode, the controller output value can be viewed in the bottom display panel.
7 Operating key
Function in the operating level (standard operation):
Switch over to select the controller variables in one direction; following sequence: setpoint
W1, XD, output variable Y, setpoint W2 (see section 4.2.1).
Function in the parameterization/configuration level:
Return to the operating level (standard operation) from the current levels.
8 ENTER key
Function in the operating level (standard operation):
Accept and store the numeric value specified for setpoint W1 or W2. Access the code num-
bers for parameterization level
PA
and configuration level
C0
.
To acknowledge the code number entered and simultaneously enter the selected level.
Function in the parameterization/configuration level:
Selection of the entry options (flashes when selected).
Accept and store the numeric value entered.
9 Changeover between setpoints W1 and W2
Choice between setpoint W1 and W2. When setpoint W2 is active, the yellow LED located
in the key illuminates.
In addition, selection can be made between setpoint W1 to W2 by applying 24 V d.c. to an
external signal (note configuration block
SP
, page 19).
10 Display variables XD, Y and W2
The three yellow LEDs indicate which variable (control deviation XD, controller output Y, set-
point W2) is displayed in the bottom display panel that was selected using the operating
key (7). Setpoint W1 is usually displayed here.
11 Label for physical unit of temperature
Physical unit specification of the top and bottom display. It is attached above the top display
panel using the supplied adhesive label. For this purpose, first remove the clamped-on
frame.
11

4.2 Operation of the three levels
Operation of the controller is divided into the following three levels of operation, also referred to
as operating modes: 1) operating level (standard operation), 2) parameterization level and 3)
configuration level.
4.2.1 Operating level
This is the standard operating level of the controller.
Controlled variable x is displayed in the top display panel; setpoint W1 is
displayed in the bottom display panel.
Controlled variable x
The range of values in the display depends on the minimum and maximum
measuring range limits, which are to be specified in the configuration level
(see page 18) with
In__
and
In
—
.
Setpoint W1
Setpoint W2 is displayed in the bottom display panel. If no LED (10) illumi-
nates, setpoint W1 is selected in the display. The range of values depends
on the measuring range limit
In__
and
In
—
specified for controlled vari-
able x. Any decimal points are displayed analogous to the controlled vari-
able display.
Modify setpoint W1
The displayed value can be modified to the desired value using cursor keys
(5) and .
After a single press of a cursor key (5), the display of the setpoint flashes, in-
dicating that a new value may now be set.
Afterwards actuate the ENTER key (8) to accept and store the value, which is
then retained in non-volatile memory even in event of power loss. If the new
setpoint is not to be stored or activated, return can be made to the operating
level (standard operation) by means of the operating key (7).
If other controller variables are to be displayed in the bottom display panel,
the operating key (7) must be actuated each time.
In the sequence of the defined display, the following control parameters are
displayed in the bottom display in conjunction with a yellow LED (10):
Control deviation (error) xd (xd = w – x)
The numeric value of the control deviation is displayed in the bottom display
panel. In connection with this yellow LED, XD illuminates for the display
mode control deviation (10). The displayed value is specified as a percent.
Output variable y
The numeric value of the output variable is displayed as a percent in the bot-
tom display panel. The range of values in the display depends on the
measuring range limit, which is to be specified with
Y__
and
Y
—
in the par-
ameterization level. The yellow LED (10) of output variable Y illuminates.
12

Modify setpoint W2
Setpoint W2 is presented for viewing purposes in the bottom display panel.
A change of setpoint W2 is performed analogous to that of setpoint W1.
The yellow LED (10) of setpoint W2 illuminates.
If no LED (10) illuminates, W1 is selected as active setpoint in the display.
Display sensor line breakage
If a sensor wire break or short-circuit is detected at the controller input or an
input range is exceeded in either direction, three bars appear in the top dis-
play panel, designated
o
(over) or
u
(under). In this case, the output signal is
automatically set to the value specified in configuration block
YSt
(safety
output value to restart) when AUTOMATIC mode is enabled.
After correcting the defect, the controller operates in standard operation.
13

4.2.2 Parameterization level
Control parameters can be set in the parameterization level.
Values set in this level are protected against unauthorized access by means of a code number
(personal security code lock).
Access to the parameterization level must be first obtained by entering the code number before
set values can be modified.
The code number is pre-set (factory configuration) to
0
and can be modified in configuration
block
CPA
(see page 22).
Determine and modify the control parameters
If control parameters are to be set, the parameterization level is opened after the code number
has been entered and accepted.
Select the desired parameterization option using cursor keys (5) and . If the yellow ENTER
key (8) is consequently pressed, the selected option flashes in the bottom display panel.
Use cursor keys (5) and to set the desired value in the top display; press the ENTER key (8)
to accept and store this value.
Advance to the next parameterization option using cursor keys (5) and , or return to the
operating level (standard operation) by pressing the operating key (7).
Open the parameterization level
Press yellow ENTER key (8)
PA
appears in the bottom display panel; code number
0
appears in the top
display panel.
Press ENTER key (8).
PA
flashes in the bottom display panel.
Enter the specified code number (if no number was entered, the factory de-
fault value
0
is assumed) in configuration block CPA using cursor keys (5)
and .
Press ENTER key (8) again to open the parameterization level.
P
appears
as the first control parameter in the display.
If the wrong code number is entered, the controller returns to the operating
level.
The following parameterization options listed can be selected and modi-
fied using cursor keys (5) and .
14

Proportional-action coefficient P (Kp), P-action component of the controller
Range of values 0.1 to 100.0
Integral-action (reset) time I (Tn), I-action component of the controller
Range of values 0 to 2000 s, disabled when set to
0
Derivative-action (rate) time D (Tv), D-action component of the controller
Range of values 0 to 2000 s, disabled when set to
0
Derivative-action (rate) gain
dP
, gain of the D-action component
Range of values 0.0 to 10.0 (D-action component only enabled when a
value >0 is specified for
dP
.
Output variable limits
Y__
= –110.0 % to Y—
Y
—
= Y__to +110.0 %
This limit is ineffective for MANUAL function.
Selection of the output variable range determines the lower-limit (start) and
upper-limit (end) value of the output signal range. The numeric values are
displayed as percents of the selected controller output range.
Example:
Y0
= 0, current range 0 to 20 mA
Y__
= 20 %, Y—= 80 % →controller output Y = 4 to 16 mA
Working point
YP
(only active if I-action component = 0)
The setting range of working point
YP
corresponds to the setting range for
output variable Y.
To set working point
YP
, the current value of the output variable display must
be read when the plant is in the steady-state and set as value for the working
point. Thus, the offset (steady-state deviation) of a P or PD controller is elimi-
nated when the setpoint is fixed-set.
The limit value and the differential gap for switching outputs
Y1
and
Y2
are defined with the dis-
plays shown below:
Selection of the limit value and the alarm condition is set in the configuration level via configura-
tion block
Y1
or
Y2
.
Further explanations on the switching outputs can be found in chapter 5.
For
Y
=
0
or
2
Limit value
Y1
For
Y
=
0
or
2
Differential gap for
Y1
For
Y
=
0
or
2
Limit value for
Y2
For
Y
=
0
or
2
Differential gap for
Y2
15

For
Y
=
0
or
2
Duration of period for pulse-pause
Switching output (Y1/Y2 = 8 or 9)
Setting range: 1 to 9999 sec.
For
Y
=
1
Motor operating time of the final control
element connected
Setting range: 1 to 9999 sec.
Dead band (neutral zone)
td
Range of values 0.1 to +100.0 % in reference to the output signal.
The dead band (for
Y
=
1
) is entered for the three-step controller, and the
minimum pulse duration is entered for the switching outputs (see chapter 5,
page 9 for further details).
For
Y
=
1
Differential gap
Range: 0.1 to 100.0 %
After actuating the operating key (7), the controller returns to the operating level (standard
operation).
16

4.2.3 Configuration level
In the configuration level, the controller function is determined for the required control task to be
solved.
Access can be made to the configuration level by entering the code number.
The code number is preset (factory preconfiguration) to
0
and can be modified in configuration
block
CCO
(see page 22).
Determine and modify the controller functions
If controller functions are to be set, the configuration level is opened, considering the code num-
ber has been entered and stored first.
Use cursor keys (5) and to select the desired configuration block. If the yellow ENTER key
(8) is subsequently pressed, the block chosen flashes in the bottom display panel.
Now use cursor keys (5) and to set the desired value or selection block in the top display
panel. Accept and store this entry by pressing the ENTER key (8).
After modifying a value and actuating the ENTER key (8), the controller operates in MANUAL
mode.
Use cursor keys (5) and to advance to the next configuration block, or press the operating
key (7) to return to the operating level.
The MANUAL function is activated, and switch was made to output variable Y in the bottom dis-
play. Switch can be made to AUTOMATIC operation by actuating the MANUAL/AUTOMATIC
key (6).
Open the configuration level
Press the yellow ENTER key (8);
PA
appears in the bottom display panel.
Press cursor key .
CO
appears in the bottom display panel. Code number
0
appears in the top display panel.
Press ENTER key (8);
CO
flashes in the bottom display panel.
Use cursor keys (5) and to set the specified code number in configu-
ration block
CCO
(if no number was entered in
CCO
, the factory default
0
remains in force).
Press the ENTER key (8) to confirm the code number and open the configu-
ration level. The first configuration block
In
appears.
If the wrong code number is entered, the controller returns to the operating
level (standard operation).
All the configuration blocks listed below can be selected and modified via
cursor keys (5) and .
17

Select input signal
In
Configuration block
In
determines the controller input signal. The following
input options can be defined using selection options 0 to 5:
0
— Pt 100 – 30.0 to 150.0 °C
1
— Pt 100 –100.0 to 400.0 °C
2
— Current 0(4) to 20 mA
3
— Voltage 0(2) to 10 V
4
— Ni 100 – 20.0 to 90.0 °C
5
— Ni 100 – 60.0 to 180.0 °C
Measuring range limits
In__
and
In
—
In__
— Starting value (minimum value)
In
—
— End value (maximum value)
The measuring range of controlled variable x is determined in configuration
block
In
. Using
In__
and
In
—
, the measuring range can be determined by the
user in the range of
In
. Both the lower-limit and upper-limit range value mu-
tually limit each other. If, for example, the configuration is assigned
In
=
0
(for Pt 100 with –30.0 to 150.0 °C measuring range), the measuring range
of controlled variable x is defined at
In__
= –30.0 and
In
—
= 150.0. This
measuring range can be modified within limits
In__
and
In
—
. For the input
signals involving current or voltage, the measuring range is determined at
In__
= 0.0 and
In
—
= 100.0 in the configuration process. If the measuring
range limits are modified in the range from –1999 to 9999 with variable
decimal point, the input signals are only converted for display purposes.
Example: x-input = 0 to 20 mA,
In__
= 100.0,
In
—
= 300.0
x = 50 % = 10 mA = display 200.0
Decimal point
Ind
(for
In
=
2
or
3
)
The decimal point and the controlled variable can be selected by the user in
the bottom display and top displays, resp.
0
— No decimal point e.g., W1 = 132
1
— One decimal point e.g., W1 = 13.2
2
— Two decimal points e.g., W1 = 1.32
3
— Three decimal points e.g., W1 = 0.132
When input signal of resistance thermometers Pt 100 or Ni 100 is selected,
Ind
=
1
is set; i.e., a decimal point is shown.
Select the current or voltage ranges of controlled variable x with
In0
0
— 0 to 20 mA or 0 to 10 V Depending on the selection
1
— 4 to 20 mA or 2 to 10 V Depending on the selection
(inapplicable for Pt 100 or Ni 100)
18

Unit of temperature
Int
Temperatures can be displayed in either °Celsius or °Fahrenheit.
0
—°C
1
—°F
Any change of this configuration block causes the new measuring range
limits to be stored.
Example:
In
=
0
→Measuring range
In__
= –30.0 and
In
—
= 150.0 in °C
(with
Int
=
0
).
Change the unit of temperature to Fahrenheit with
Int
=
1
.
The new measuring range is now modified according to the limits below:
In__
= –22.0 and
In
—
= 302.0 in °F.
Digital filter
InF
Digital filter
InF
has the function of filtering analog input x. Range of values
0.0 to 120.0 sec., with 0.0 disabled; e.g., for fast controlled systems.
Select the input circuitry of the D (derivative)-action component with
dI
The differential-action component of the controller can be either directly ap-
plied to controlled variable x, or behind the setpoint/actual reference junc-
tion of xd (Fig. 1).
0
— To x-input
1
— To control deviation xd
Select setpoint
SP
Switching between setpoints W1 and W2 is accomplished either by actua-
ting the W1/W2 key (9), or applying an external signal (+24 V) via termi-
nal connections 2 and B of the binary input. Selection and combination op-
tions of the setpoints are determined via configuration block
SP
.
0
— W1 active, W2 disabled
1
— W1/W2 Switchover only permitted via key
2
— W1/W2 Switchover permitted by either key or binary input
(binary input has priority, i.e.,:
BE = 0 →Switchover permitted via key
BE = 1 →Switchover not permitted via key, W2 is active)
3
— Switchover permitted only via binary input
4
— Restart the setpoint ramp via binary input BE beginning from existing
x-value; W2 is disabled.
19

Setpoint ramp
SPr
(explanatory Fig. 7, see page 23)
The setpoint ramp causes a modification of the setpoint over a defined time.
Range of values: 0 to 9999 sec.
The time in which a modification of the setpoint by 100 % should be set. This
time ramp is effective for every modification of setpoint. To disable this op-
tion, set the parameter to
0
.
In this context, note configuration block
SP
=
4
, which performs an x-track-
ing (w = x) by enabling the binary input of the setpoint. After the input is
switched back (disabled), the setpoint is modified with the set speed until the
set value is reached.
Inhibit (HOLD) modification of the setpoint
SPH
0
— W1/W2 can be modified
1
— W1 can be modified, W2 inhibited
2
— W2 can be modified, W1 inhibited
3
— W1/W2 inhibited
Lock (HOLD) the MANUAL/AUTOMATIC key
YH
0
— Switchover to MANUAL/AUTOMATIC permitted with key
1
— Switchover to MANUAL upon sensor breakage; safety output value YSt
applied
2
— Switchover to MANUAL/AUTOMATIC locked using key
Select controller output
Y
0
— Continuous controller output with limit contacts Y1 and Y2
1
— Three-step controller and recorder input for controlled variable x
2
— Continuous controller output is available as recorder input for
controlled variable x, with limit contacts Y1 and Y2
Operating direction
Yr
Setting
0
Inverse <>, Increasing x →decreasing Y or
decreasing x →increasing Y
1
Direct >>, Increasing x →increasing Y or
decreasing x →decreasing Y
Select the current range of controller output Y with
Y0
0
— 0 to 20 mA
1
— 4 to 20 mA
20