STR 0PA 9
End positions adjustment:
End position relays are adjusted to the specified stroke with accuracy of ± 0.5mm.
It is possible to set up (with buttons situated on the control unit, resp. with buttons situated on the local
control, resp. program after connecting the EA with PC) the shutting off in end positions as follows:
- Z = Torque + O = Torque
- Z = Torque + O = Position
- Z = Position + O = Torque
- Z = Position + O = Position
Notes:
C = Torque - shutting off at end limit - thrust „Closed“
O = Torque - shutting off at end limit - thrust „Opened“
C = Position - shutting off at end limit - position „Closed “
O = Position - shutting off at end limit - position „Opened“
Factory’s setup of shutting off in end positions is described in the chapter “Adjusting of actuator”.
Thrust sensing: - using thrust switches.
Thrust switches adjustment:
Thrust switches switch-off in the interval stated in the Specification table and they cannot be adjusted
by user.
Thrust blocking:
The switching-off from thrust can be blocked within a certain range of the stroke starting from a stroke
end position (max..5%), for time agreed on, in range of 0 to 20 sec..
Output relay :
- 3x relays (READY, R1, R2) max.250 V AC/cos phi=1; max. 30 V DC/2A
- relays READY, R1, R2 are free programmable (their function can be changed with buttons on the
control unit or through a PC with the program).
READY relay: - programme selections option – error indication, error or warning, error or not
remote, error or warning or not remote. READY relay factory set is shown in the “Adjusting of
actuator" Chapter.
R1 and R2 relay: - programme selections option – disabled, Position O (position open), Position C
(position close), Torque O (torque open), Torque C (torque close), Torque O or Torque C, Torque
O or Position O, Torque C or Position C, opens, closes, movement, movement – flasher, to
position, from position, warning, control – remote, control – local, (not valid for EA without local
control), control OFF.
Factory setting up of the individual relays is shown in the “Adjusting of actuator" Chapter.
Transmitter (output signal)
Electronic position transmitter (EPV) passive, 2-wire connection (without inbuilt power supply)
Current signal........................................................................................ 4 ÷ 20, resp. 20 ÷ 4 mA (DC)
Voltage at connection of EPV passive......................................................................18 up to 30 V DC
Load resistance .........................................................................................................max. R
L
= 500 Ω
Tolerance of value of output signal of electronic transmitter in end positions: ...................... ±0,5 %
1)
:
Tolerance of linearity of transmitter......................................................................................... ±1 [%]
1)
Hysteresis of transmitter ..................................................................................................max. 1 [%]
1)
Galvanic separation...........................output signal is galvanically separated from input control signal
1) from nominal value of transmitter referred to output values
Program possibilities of output signal : 4 ÷ 20 mA, 20 ÷ 4 mA.
Factory’s setup of output signal is described in the chapter “Adjusting of actuator”.
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