ABB EAN823 User manual

Instructions
4268822 EN Power Electronic Units for Field Installation
EAN823, EBN853, EBN861 (Contrac)
For the Control of Contrac Actuators
of the PME, LME, RHD or RSD Series

2
Content
Device Identification . . . . . . . . . . . . . . . . . . . . . . . . . 2
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety and Precautions . . . . . . . . . . . . . . . . . . . . . . . . 3
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Long-time Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Delivery settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
EAN823 / EBN853 . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
EBN861 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Current Consumption of EAN823 . . . . . . . . . . . . . . . . . 6
Current Consumption of EBN853 . . . . . . . . . . . . . . . . . 7
Current consumption of EBN861 . . . . . . . . . . . . . . . . . . 7
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preparing the electronics . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting of EAN823 / EBN853 . . . . . . . . . . . . . . . . . . . 8
Mounting of EBN861 . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 9
EAN823 / EBN853 / EBN861 (Standard) . . . . . . . . . . . . . 9
EAN823 / EBN851 / EBN861 (PROFIBUS DP) . . . . . . . . . 9
Connecting the cable shield . . . . . . . . . . . . . . . . . . . . 10
Example for signal input / output . . . . . . . . . . . . . . . . . 10
Cable guidance at the plug . . . . . . . . . . . . . . . . . . . . 11
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set-up via local control panel (LCP) . . . . . . . . . . . . . . . 12
Adjustment using the configuration program . . . . . . . . . 13
Functions and signals at the LCP . . . . . . . . . . . . . . . . 13
Alarms / Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Alarm scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Failure scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Legend
1. Device Identification
1.1 General
The ID labels of the power electronics are located both
on the base (power supply) and on the cover (electronics
and software memory) of the unit. As the base and cover
are considered as separate assemblies, they may have
different serial numbers (F. no.).
1.2 ID Label on the Base
1. Electronics type
2. Device no./ No. of non-standard version
3. Permissible supply voltage range / Year of manufacture
4. Permissible frequency range / Max. power input
5. Permissible ambient temperature / Protection class
6. Information on external fuse
1.3 ID Labels on the Cover
ID Label for Software Description
1 Associated actuator type
2 Rated values for torque / force / speed
3FabricationNo.
4 No. of non-standard version
5 Actuator firmware release
1.3.1 ID Label for Hardware Description
1. Electronics type
2. Device number / No. of non-standard version
3. / Year of manufacture
4. /
5. Permissible ambient temperature / Protection class
6.
Danger
Indicates an imminently hazardous situation
which, if not avoided, will
result in death or serious injury
Warning
Indicates a potentially hazardous situation
which, if not avoided, could result in death or se-
rious injury or serious property damage.
Caution
Indicates a potentially hazardous situation
which, if not avoided, may result in minor or mo-
derate injury or property damage.
Important
Indicates useful hints or other special informati-
on which, if not observed, could lead to a decli-
ne in operating convenience or affect the
functionality.
1Elektronik / Electronics Type: ....
Made in Germany
2 B-Nr./No. ...... NL
3 U = 190...260 V ... Jahr/Year
4 f = 50/60 Hz ± 5% P = max. ..... W
5 t = ..................°C IP 66 CE
6 Ext. Sicherung / Fuse .......
Automation
D-32425 Minden
1 Für / For
Antrieb / Actuator Typ / Type . . . . . . . .
2 Nennwerte / Rated values
M=....... .......°/s
3 F-Nr. / No.: . . . . . . . . . . . . . . . . . . . . . .
4 NL . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 SW Version . . . . . . . . . . . . . . . . . . . . .
6
1Elektronik / Electronics Type: ....
Made in Germany
2 B-Nr./No. ...... NL
3Jahr/Year
4
5 t = ..................°C IP 66 CE
6
Automation
D-32425 Minden

3
2. Application
Use this instruction only together with the actuator instruction.
3. General
3.1 Proper Use
Power electronics models EAN823, EBN853 and EBN861 are to be used exlusively for triggering elek-
trical actuators of the PME120, LME 620, RSD... or RHD... series. Do not use them for any other pur-
pose. Otherwise, a hazard of personal injury or of damage to or impairment of the operational reliability
of the device may arise.
3.2 Safety and Precautions
When mounting the electronics in areas which may be accessed by unauthorized persons, take the re-
quired protective measures.
- Only qualified specialists who have been trained for these tasks are authorized to mount and adjust
the electronics, and to make the electrical connection.
- When working on the electronics always observe the locally valid accident prevention regulations
and the regulations concerning the construction of technical installations.
- Switch-off the voltage supply; make sure that unintentional switching on is not possible
- Make sure that cutting off the voltage supply does not affect the plant process
- Consider restoring process forces from the final control element when cutting off the voltage
4. Storage
The devices may be stored under moist and aggressive condition for a short time. The equipment is
protected against external corrosive influences. However, direct exposure to rain, snow, etc. must be
avoided
Condensation may occur in the terminal box. Therefore, it is protected by a desiccant, which ensures
sufficient protection for approximately 150 days. The desiccant can be regenerated at a temperature of
90° C within 4 h.
The desiccant must be removed prior to commissioning the electronics.
4.1 Long-time Storage
If you intend to store or transport the device for a longer time, we recommend to wrap it in plastic foil
and add desiccant. Regularly check if the desiccant is still active.
5. Delivery settings
Behavior in 0/100% position: Keep closed with rated torque
Setpoint function: Linear; setpoint = positioning value
Input (setpoint): 4 ... 20 mA 1)
Function: Positioner, parameter: setpoint
Output (actual value): 4 ... 20 mA 1)
Digital inputs: 1) DI 1 switch-over manual/automatic and v.v.
DI 2 / DI 3 manual control +/-
Digital outputs: 1) DO 1 ready to operate, DO 2/3 end position signalling
Range: Not adjusted (to be adjusted during commissioning)
The configuration of your actuator may differ from the standard configuration specified above. It can be
called up for display using a notebook / PC and the related configuration program.
1) not with fieldbus communication.

4
6. Assemblies
Power electronics EAN823, EBN853 and EBN861 consist of 2 parts each, one containing the connect-
ing units (EAN823 and EBN853) and the transformer, the other containing the electronics and the local
control panel (LCP) for local operation and adjustment of the actuator.
6.1 EAN823 / EBN853
1 taphole for cable glands
2 cover for connection chamber
3 connection housing
4 electronic hod
5 cover for local control panel
6.1.1 Connection chamber
Fig. 3: connection chamber EAN823 / EBN853 with removed cover.
The standard scope of delivery considers tapholes covered with srew-in plugs. Adapters for PG or NPT
cable glands are available on request.
Fig. 1: Electronic unit EAN823 Fig. 2: Electronic unit EBN853
1
25
4
3
d0146rxa
34
5
2
1
d0147rxa
tapholes
signal terminals
motor terminals
terminals for
mains fuse
fuse for anti
fuse for analogue
setpoint input
cable
condensation heater
mains supply
glands
terminals and

5
6.2 EBN861
Fig. 4: EBN861 without LCP and connection chamber cover
mains
signal
transformer and
elctronic unit
hinge screws
cover screws
signal
motor /
cable
power
cable
entry
(motor)
cable
brake
entry
cable
cover
power part
hinge screws
cover screws
local control panel
(LCP)
terminals
terminals

6
7. Technical Data
7.1 General
1) Not available for communication via PROFIBUS DP
7.2 Current Consumption of EAN823
Table 2
EAN823 EBN853 EBN861
Supply voltage 115 V AC (94 V ... 130 V) or
230 V AC (190 V ... 260 V) ;
47.5 ... 63 Hz; 1Ph
230 V AC (190 V... 260 V);
47.5 ... 63 Hz; 1Ph
External fuses 16 A; slow-blow 35 A fuse
16 A thermal safety cutout
Analog input1) 0 / 4 ... 20 mA; impedance 50 Ohm
Analog output1) 0 / 4 ... 20 mA, electricallly isolated;
max. load resistance 500 Ohm
Digital inputs, DI1) Logical 0:-3V ... + 5 V or open, electrically isolated
Logical 1:+12 V ...+ 35 V, electrically isolated
Digital outputs, DO 1) Potential-free relay contact, max. 60 V, 150 mA
Digital
communication
RS 232 for commissioning and service, optional FSK / HART® or
PROFIBUS DP
Default settings Behavior in 0/100% position: Keeping closed with rated torque
Setpoint function: Linear;
setpoint = positioning value
Input (setpoint): 4 ... 20 mA1)
Function: Positioner, parameter: setpoint
Output (actual value): 4 ... 20 mA1)
Digital inputs: DI 1 switch-over manual/automatic and
v.v., DI 2 / DI 3 manual control +/-1)
Digital outputs: DO 1 ready to operate, DO 2/3 end positi-
on signalling 1)
Individual settings See data sheet 68-2.40 or on request
Protection class IP 66
Humidity ≤95% annual average (condensation permitted)
Ambient temperature -25° C ... +55° C
Mounting orientation Mounting on vertical mounting plate, cable
glands to the left
Mounting on vertical mounting
plate, cable glands at the bot-
tom
Varnish 2-component epoxy resin (RAL 9005, black)
Link cable between
actuator and electron-
ics
2 m... 30 m (max.) 2 m... 100 m (max.)
Weight approx. 10 kg approx. 11 kg approx. 42 kg
Table 1
Imax 115 V Imax 230 V I pos.
PME 120 AN 1.0 A 0.55 A each around
40 ... 50% of Imax
LME 620 AN 1.0 A 0.55 A

7
7.3 Current Consumption of EBN853
Table 3
7.4 Current consumption of EBN861
Table 4
7.5 Fuses
1) The 35 A fuse and the thermal safety cutout (16 A) are included in the scope of delivery. They ensure
safe operation for the special swiching conditions of power electronics EBN861. Note that the cable
cross-sectional area between the fuse and the electronics must be at least 2.5 mm2.
Imax 115 V Imax 230 V I pos.
RHD250-10 1.8 A 0.9 A
each approx.
40 .. 50% of Imax
RHD500-10 2.2 A 1.1 A
RHD800-10 3.4 A 1.7 A
RHD1250-12 6.0 A 3.0 A
RHD2500-25 4.8 A 2.4 A
RHD4000-40 4.0 A 2.0 A
RHD8000-80 4.0 A 2.0 A
RSD10-5,0 3.4 A 1.7 A
RSD10-10,0 3.8 A 1.9 A
RSD20-5,0 4.8 A 2.4 A
RSD20-7,5 3.8 A 1.9 A
RSD50-3,0 4.0 A 2.0 A
RSD100-1,5 4.4 A 2.2 A
RSD200-0,7 5.0 A 2.5 A
Imax 230 V I pos.
RHD2500-10 5.3
each approx.
40 ... 50% of Imax
RHD4000-10 10.0
RHD8000-12 9.0
RHD16000-30 10.2
RSD50-10,0 6.4
RSD100-10,0 12.5
RSD200-5,5 13.0
Electronic
unit
Fuse type Mounting site U = 115 V U = 230 V 1)
EAN823 External fuse external 16 A, slow
Mains fuse in connection chamber 6.3 A, slow 3.15 A, slow
Analogue setpoint input in connection chamber 40 mA; fast
Anti condensation heater in connection chamber 2 A; slow
EBN853 External fuse external 16 A, slow
Mains fuse in connection chamber 12.5 A, slow 10 A, slow
Analogue setpoint input in connection chamber 40 mA; fast
Brake fuse power board 0.315 A, medium time-lag
Intermediate circuit fuse power board 10 A, super-quick
Anti condensation heater in connection chamber 2 A; slow
EBN861 External fuses1) external
--
35 A fuse
16 A thermal
safety cutout
Brake fuse on board (power section)
--
0.315 A,
medium time-
lag
Intermediate circuit fuse power board -- 15 A, medium
time-lag
Table 5

8
7.5.1 External fuses for EBN861
Apart from the internal fuses (see also 7.5), the EBN861 power electronic unit requires two additional
external fuses, which are supplied separately to the unit.
Fig. 5: External fuses
8. Mounting
Install the electronics close to the actuator. The connection is made via a 24-pin connector (additional
10-pin connector if heater is used) on the actuator side and screw terminals on the electronics side. The
electronics are provided with the appropriate metric cable holes (see Figures 1 to 3 for the assignment).
8.1 Preparing the electronics
- Make sure that disconnection on site is possible.
- Shield all signal cables and the motor cable between the actuator and the electronics
- The shield of the connection cable between the electronics and the actuator must be applied to both
housings.
8.2 Mounting of EAN823 / EBN853
Disconnect the electronics and the actuator prior to all installation and service works.
- Fasten the unit to the vertical mounting plate, using screws of property class 8.8 (tensile strength
800 N/mm2; yield strength 640 N/mm2)
- Make sure that there is enough spacing for mounting, and that the unit can be easily accessed
- Make sure that the cable holes are oriented to the left
- Remove the cover of the connection chamber (2)
- Insert the cables through the cable glands and connect them according to the wiring diagram.
- Use appropriate cable glands to ensure a water-tight installation
- Check if the cable is connected properly; then close the connection chamber cover.
Adjust as described in section 9.
8.3 Mounting of EBN861
Electronics unit EBN861 has a total weight of around 42 kg. For safety reasons it may be necessary to
mount each of the two parts separately.
- Undo and remove the cover screws.
- Fold down the front part, then lift it off from the hinge bolts towards the top.
- Undo the internal connection between the two housing parts.
- Undo the hinge screw
- First mount the rear part of the housing
- Attach the front housing part to the hinge bolts, insert a screw into the top bolt and fasten.
- Make the internal connections between the two housing parts.
- Close the cover and fasten the cover screws
- Connect the cables
Fig. 6: External fuse; 35 A Fig. 7: External thermal fuse; 16 A
L
AC 230 V 1~
16 A (ϑ)
35 A
N
PE
Electronic
unit

9
9. Electrical connection
Each actuator requires a Contrac electronic unit. Proper actuator operation requires an actuator specific
software loaded in the associated electronic unit. Compare the data labels on both, electronic unit and
actuator, in order to ensure a correct hardware and software assignment.
The electrical connection is done with a plug at the actuator and with screw terminals at the electronic
unit.
9.1 EAN823 / EBN853 / EBN861 (Standard)
Fig. 8: 1) max 50W with EAN823 and actuator for temperature range -25° ... +55°C
9.2 EAN823 / EBN851 / EBN861 (PROFIBUS DP)
Fig. 9: 1)max 50W with EAN823 and actuator for temperature range -25° ... +55°C
24V
Uv
30
+- -
+
RB
+-
31
I
U
26 27
1
+-+-+- +
-
7
28 39410 13 5111461215
LN
Uv
24V
+
RB
+-
28 29
17 18 19 20 21 22 23 24
17 18 19 20 21 22 23 24
UVWBrBr
1212 31314
M
3~
H1 H2 PE
single sided screening
in further wiring possible
r00350x1
Sub distribution board
screen grounded at both ends
Contrac Electronic Unit
Contrac Actuator
sensors
motor brake
heater
approx. 6 W
(Option)
Han 10E Han 24E
MAN/AUT MAN(+) MAN(-) ok/fail. end pos. end pos out
setpoint
+HART
0/4...20mA
transmitter.
4...20 mA act. value
0/4...20mA
mains supply
AC115 / 230 V
EBN861:
only AC230 V
ext. fuse
1)
0% 100%
DI1 DI2 DI3 DO1 DO2 DO3
LN
Bus out
Bus in
28 29 30
BBAA
31 S1
17 18 19 20 21 22 23 24
UVWBr
H1 Br H2
17 18 19 20 21 22 23 24
1231314
M
3~
PE
12
(r00010x1)
Contrac
electronic unit
Contrac
Actuator
red
green
bus termination
motor brake sensors
bus terminals
Han 10E
mains supply
AC115 / 230 V
EBN861:
only AC230 V
ext. fuse
Han 24E
1)
red
green
heater
approx. 6 W
(Option)

10
9.3 Connecting the cable shield
Fig. 10: Connecting the cable shield of EAN823; EBN853; EBN861
Screen connection at the actuator ist done accordingly.
9.4 Example for signal input / output
(conventional analogue / binary control)
Premises to switch the actuator into automatic mode (AUT):
- digital inputs D1, D2, and D3 may not be activated via the configuration software (standard config-
uration with default factory settings).
- activate the AUT mode using the configuration software (standard configuration with default factory
settings).
9.4.1 Standard wiring (analogue setpoint)
Fig. 11: Possible wiring for standard terminal assignment
9.4.2 Behind a step controller
(binary control without an analogue setpoint)
Contrac actuators feature smooth and continous operation even if the elctronic unit receives binary
commands from a step controller. Use the configuration software for the appropriate settings. The elec-
tronic unit will then integrate the step commands and internally generate an analogue setpoint signal.
Fig. 12: Possible wiring for „operation behind step controller“
This operating mode requires the switch for the reference potential to be set to .
1
1
2
4
4
3
3- Remove approximately 2 cm of the cable
sheathing (1) at the cable entry of the
housing (4).
- Open the cable shield in this area and fold
it back over the cable sheathing (1).
- Insert the cable end in the cable entry and
fasten it with the clamp; make sure that the
shield is folded back and in contact with
the clamp and the electronics housing.
r00331x1
Uv
24V
24V
+-
--
+
+
RB RB
+-
+- I
U
Uv
+- +- +- +
AUT
-Y+Y
MAN
14 28 30
26
131211
910
8
7
6
4
32
1515 29 31
27
Ok
r00358x1
act. value 0/4...20 mA
setpoint (+HART) 0/4...20 mA end pos. 100%
end pos. 0%
DI1
DI2
DI3
DO1 DO2 DO3
Uv
24V
24V
+-
--
+
+
RB RB
+-
+- I
U
Uv
+- +- +- +
-Y+Y
14 28 30
26
131211
910
8
7
6
4
32
1515 29 31
27
Ok
r00359x1
DI1 DI2
DO1 DO2
DO3
act. value 0/4...20 mAact. value 0/4...20 mA
end pos. 100%
end pos. 0%
controller
DI3
SYS

11
9.5 Cable guidance at the plug
Pass and connect both the signal and the power cable separately within the plug housing in order to
avoid electro magnetic interferences. A metal plate separates both cable areas from eachother. Con-
nect the screen acc. to fig. 13.
Fig. 13: Cable guidance within the plug
Leistungskabel
Trenn-
steg
Signal-
kabel
Abschirmung
Abschirmung

23
13.Setup
The actuator only requires the basic settings (adaptation to the operating range) in order to be operated
with the standard or custumer specific configuration. Use the Local Control Panel (LCP) for these set-
tings. Use the appropriate configuration software for more detailed parameter changes or diagnosis
functions.
13.1Set-up via local control panel (LCP)
13.1.1Operating elements
1. Write-protect switch (Default setting: OFF)
2. LED for 100% position Indication if adjustment procedure, saved position, or fault by different
flash frequencies.
3. Drive buttons Press to cause drive motion
4. Reset button Press to restart processor
5. Power LED Indicates available mains supply
6. RS 232 socket Connection socket to PC
7. Potential toggle switch Connection of reference potential to the system or protective earth (by
default set to system) of electronic unit
8. LED for 0% position Indication if adjustment procedure, saved position, or fault by different
flash frequencies..
9. Accept button (0%) Press to define current position as 0%; simultaneously press push but-
ton 9 + 10 to complete the adjustment procedure.
10. Accept button (100%) Press to define current position as 100%; simultaneously press push
button 9 + 10 to complete the adjustment procedure
Figure 25: Local Control Panel (LCP)
The actuator range is not preset in factory!
13.1.2Setup procedure
- Undo the screws of the LCP cover
- Swing the cover to the side
13.1.3Initial situation
- Electronics connected to power supply and actuator
- Write-protect switch (1) set to “OFF” position
- Electronics in operating mode “MAN” (no signal on DI 1)
- No fault (if a fault occurs, both LEDs flash alternately at 4 Hz)
1
2
3
4
5
6
7
8
9
10
(r0110rxa)

24
13.1.4Setting
13.1.4.1 “Setting” mode
- Set electronics to “setting” mode by pressing both push buttons (3) simultaneously for approx. 5
seconds, until both LEDs (2 + 8) are flashing synchronously at approx. 4Hz. („setting mode“ is the
standard electronic unit status after passing the final factory test)
13.1.4.2 Defining first position (0% or 100%)
(Higher precision in 2nd position)
- Move to desired position by pressing one of the push buttons (3).
- To accept the position for 0% or 100%, press push button (10) or (9); the associated LED flashes at
approx. 2 Hz when value is correctly accepted, the other one continues to flash at approx. 4Hz
13.1.4.3 Defining second position (0% or 100%)
- Move to second position by pressing tho other of the push buttons (3).
- To accept the position, press push button (10) or (9); both LEDs (2) and (8) are flashing at approx. 2
Hz when values are accepted correctly.
13.1.4.4 Saving the settings
- Save the settings by simultaneously and shortly pressing the push buttons (10 + 9); the LEDs (2 + 8)
are „ON“ (without flashing) for approx. 5 sec before they extinguish and the setting procedure is
completed.
- If the selected range is too small for the actuator, both LEDs will flash again at 4Hz. Repeat the ad-
justment procedure with a wider range (min. positioning travel).
(See positioning travel specification on actuator ID label)
13.1.4.5 Correction after setup
- If the setting is to be corrected after accepting the first value, first press the Reset button (4) and
then repeat the setting.
- If the correction is to be re-done after saving the settings, the entire adjustment procedure must be
repeated.
13.2Adjustment using the configuration program
Context-sensitive help information is available in the configuration program at all times. For basic han-
dling and installation instructions refer to the associated manual, number 41/68-001.
A conductive ground connection is established between the PC and the CONTRAC electronics with the
RS 232 communication cable. If the PC is grounded, this may cause a ground loop in the installation.
13.3Functions and signals at the LCP
Table 7:
Function Indication
Adjustment
Change-over to adjustment mode:
Press and hold both drive buttons for approx. 5
seconds
Both LEDs flash synchronously at approx 4Hz
after time has expired.
Moving to an end position
Use associated drive button on LCP
Both LEDs continue to flash at 4Hz while driv-
ing.
Saving the first end position
Press button 0% or 100%
The associated LED flashes at approx. 2Hz,
the other continues at 4Hz.
Saving the second end position
Press button 0% or 100%
The associated LED flashes at approx. 2Hz
synchronously to the first one.
Confirm settings
Press 0% and 100% buttons simultaneously
Both LEDs are briefly „ON“ together and then
extinguish.
Operation
Normal operation: MAN / AUT LED off
Driving with button on CSF
Priority over control system
LED off
Bootstrap mode
Electronic is in bootstrap mode during the data trans-
fer of e. g. firmware, objects or motor charcteristics;
use ECOM688 software for this procedure.
Both LED are „ON“; actuator is not available
Fault (both LEDs flash alternately at 4Hz)
Reset:
Resets fault indications
If no „Failure“ conditions exist, both LEDs
extinguish (if the actuator had been moved out
of its operating range, drive it back prior to the
reset).

25
14. Alarms / Failures
14.1 Definition
14.1.1 Alarms
The actuator / electronic unit is exposed to critical conditions (e. g. high temperature) which currently
do not affect the actuator, the electronic unit, the process or persons. The actuator functions are still
available. Previous alarms are saved in the „Saved Alarms“ memory of the electronic unit. Use the con-
figuration software to display the current and saved alarms.
14.1.2 Failures
The actuator / electronic unit is exposed to critical conditions (e. g. setpoint monitoring signal) which
instantly might affect the actuator, the electronic unit, the process or persons. The actuator will be
switched off and the actuator functions are no longer available. Previous failures are saved in the
„Saved Failures“ memory of the electronic unit. Use the configuration software to display the current
and saved failures. Failure messages can not be reset as long as the reason for the failure exists.
14.2 Alarm scheme
Fig. 26:
transmitter temperature
monitoring
ON
&
Alarm Signal
upper limit
lower limit
setpoint monitoring monitoring maintenance
lubricants / elastom.
motor / gearing
actuator
temperature
electronics
process contr.
ON
actuator
stop
safety pos.
last setpoint
(high / low) (high / low)
behav. at crit.
temp.
MAN
AUT
actuator runs
in selected
mode
saved alarms
(reset option)
&
&&
upper limit
lower limit

26
14.3 Failure scheme
Fig. 27:
positioning loop hardware monitoring
frequency converter
end position
software monitoring
position sensor memory error
flash error
RAM error
watchdog monitoring activated
monitoring
ON
Failure Signal
failure message
via act. value ON
&
saved failures
analogue output
1 ... 3.5 mA at „low alarm“
21.5 ... 25 mA at „high alarm“
&
monitoring
- standstill
- min. speed
- movem. to wrong direct.
(reset option)

27
15. Troubleshooting
This section mainly describes how to handle hardware errors. Refer to the configuration program’s on-
line help for errors related to the software.
Table 8:
Error Possible reason Measures to be taken
Valve cannot be moved by actuator Malfunction of actuator or valve (e.g.
stuffing box tightened too much)
Disconnect the actuator from the
valve.
If the actuator is working properly
then, the valve is likely to be defec-
tive. Otherwise, the actuator seems
to be the error source.
Actuator does not react
Wrong electronic unit or wrong data Compare data lables of actuator and
electronic unit
Faulty electronic unit settings Check / modify settings using the
configuration software
Faulty communication to DCS Check wiring
Faulty wiring between the electronic
unit and the actuator
Check wiring
Motor / brake is defective Check the winding resistances of the
motor and brake. Check the brake
fuse.
Digital inputs of electronic unit are
not connected
Connect
Actuator does not work in automatic
mode, although “AUT“ has been
selected in the configuration program
Digital input 1 (DI 1) has not been
connected.
- Connect DI 1
- Check software settings for digital
inputs
LEDs on the commissioning and ser-
vice field are flashing simultaneously
Actuator operating range has not
been adjusted properly
Adjust the actuator operating range
(see instruction for electronic unit).
Fault when approaching an end posi-
tion
Actuator is working in the limit range
of the position sensor
- Move the actuator either manually
or with the LCP buttons to a posi-
tion beyond the end position (dis-
connect from valve if required).
- Move actuator back. If required,
reconnect to to the valve (if appli-
cable)
- Adapt actuator to new operating
range

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Printed in the Fed. Rep. of Germany (08.05)
© ABB 2005
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42/68822 EN Rev. D