18
automatically to the regime Regulation. In case that an error occurs the parameters are not stored and the actuator
should be reset. After repairing the error and switching-on the feeding, the parameters should be reset and the
auto-calibration repeated.
Operation and error messages in the regime Auto-calibration
Regime of regulation
During the operation, the actuator reacts to the changed control signal. During the regulation intervention, the pilot
light D3 is lit on; during the delay, neither D3 nor D4 is lit on. In case of an error, D4 is lit on and the pilot light D3 blinks
the code of error
(see table 1.5.1)
. After repairing the error, the regulator returns to the regime Regulation.
Operation and error messages
Relay KOK.
An error output from the regulator is, in addition to optical signalization, also the relay KOK contact. If any of the
specified errors occurs the lighting on of the pilot light D4 is accompanied by closing the contact
(connectors J1-4 and
J1-5)
of the error relay KOK.
Auxiliary functions
Function Test
By connecting terminal connector (J1-1) to the terminal (J1-2) GND, the actuator will shift into a predefined state given
by setting of the parameter P2. If the function TEST is not used terminal J1-1 is not connected. The regulator will shift into
the state given by the parameter P2 also in case of the lost control signal.
Reset
It is applied in case of a suspicion of a software error and for releasing the regulator in an erroneous course of the
Auto-calibration. The function Reset consists in short-time switching off of the regulator feeding
(ca 20 s, to allow for
discharging the filtration capacitors in the supply source)
and restarting.
Message
D3
(yellow)
D4
(red)
State or type of defect
Response to error
Operation
Error
lit on
regulation intervention in progress
Normal operation state
no
no
regulation deviation in
the insensitivity zone
no
1x
Regime TEST
According to setting
P2.
lit on
2x
Voltage control signal missing
According to setting
P2.
4x
The actuator switched off by the
limit switches in an intermediate
position (obstacle in the valve)
Actuator without response.
Regulation only if the opposite
direction is required.
5x
Error of position transmitter
Actuator without response.
6x
Action of TP
Actuator without response.
7x
Error in current control signal
(control current < 3.5 mA)
According to setting
P2.
Parameter
D3
(yellow)
D4
(red)
Parameter value
Note
P6
Auto-calibration
6x
6x
no
A. error-free run
3x
A. start on the limit switch or
failure of
limit switch
4x
incorrectly connected
limit
switch
5x
incorrectly connected or defective
current position sensor CPT
8x
wrong direction of rotation, opposite
connection of the R position sensor
The name "limit switch" indicates
the torque- or position-limit witch,
which is connected in the control
circuit.
Содержание Modact MOKP 100 Ex Series
Страница 2: ......