Technical Data; Installation / Commissioning - bürkert 8623-2 Installationanleitung Und Betriebsanleitung

TECHNICAL DATA

General technical data
for controllers 8623-2, 8624-2 and 8625-2
Operating voltage 24 V DC
Power consumption max. 0.3 W (without proportional valve)
Output current max. 1.0 A
(to valve)
Operating temperature -10 ... +60 °C / 14 °F ... 140 °F
Interference resistance to EN 50082-2
Interference emmission to EN 50081-2
Output
PWM output 24 V - pulse width modulated
Housing
Cable outlet rotatable in 90° steps
System of protection IP 65
Material polyamide
Dimension (B x H x T) 54 x 54 x 61 mm
Technical data 8623-2
Inputs
Sensor input 2 frequency inputs, 2 - 1000 Hz
Precision ± 1 %
Signal types sine, square, triangle
1 setpoint input 4 - 20 mA / 0 - 10 V adjustable
Resolution
Input impedance
Input impedance
Controller
Control algorithm PI - control
Scan time T 45 ms
A
Amplification factor K 0.00 - 10.00 ‰/Hz
P
Reset time T 0.1 - 200.1 s
N
K-factors 1 and 2 0.0 - 6552
Ratio 0.00 - 10.00
Scaling 0.00 - 655.2
Filter software filter with PT1 behaviour
time constant = 8*T
Order no. 143569
TECHNICAL DATA
Technical data 8624-2
Inputs
Sensor input
1 setpoint input
Controller
Control algorithm
Scan time T
Amplification factor K
Reset time T
Scaling
Order no.
Technical data 8625-2
Inputs
Sensor input
Temperatur range
(≥ 300 mV ) Resolution
ss
Precision
1 setpoint input
10 Bit
(4 - 20 mA) < 200
(0 - 10 V) > 300 kΩ
Controller
Control algorithm
Scan time T
Amplification factor K
Reset time T
Scaling
Order no.
1) Calibrated to 1 m conductor length and 0.5 mm
A
cross-section.
4 - 20 mA / 0 - 10 V adjustable
Resolution 10 Bit
(4 - 20 mA) < 200 Ω
Input impedance
Input impedance (0 - 10 V)
4 - 20 mA / 0 - 10 V adjustable
Resolution 10 Bit
(4 - 20 mA) < 200 Ω
Input impedance
Input impedance (0 - 10 V)
PI - control
27 ms
A
0.00 - 10.00
P
0.5 - 200.1 s
N
0.000 - 9999
143570
PT 100
-50 °C ... +150 °C / -58 °F ... 302 °F
0.25 °C or 0.45 °F 1)
1)
1.5 °C or 2.7 °F
4 - 20 mA / 0 - 10 V adjustable
Resolution 10 bit
(4 - 20 mA) < 200 Ω
Input impedance
Input impedance (0 - 10 V)
PI - control
50 ms
A
0.00 - 10.00 %/K
P
0.1 - 200.1 s
N
- 50 °C ... +150 °C or -58 °F ... 302 °F
143571
2 conductor

INSTALLATION / COMMISSIONING

Interference with the device is only allowed by specialist
personnel using suitable tools! Before interfering with the
controller, always switch off the voltage!
Connecting to the proportional valve
> 300 kΩ
Fig.: Connecting the controller to the
proportional valve
> 300 kΩ
➔ ➔ ➔ ➔ ➔ Unscrew the 4 screws on the front panel of themcontroller and
remove the cover carefully.
➔ ➔ ➔ ➔ ➔ Place the housing of the controller with the seal onto the valve.
➔ ➔ ➔ ➔ ➔ Screw the required controller tightly to the valve.
> 300 kΩ
On screwing the controller onto the proportional valve,
make sure the seal is correctly seated!
➔ ➔ ➔ ➔ ➔ Place the cover on the controller and screw it tight with the
4 screws.
Make sure the cover is placed on the right way round
(pinned strips must engage in the sockets.)