Electrical Connections - gefran 2300 Manuel D'utilisation

The instrument consists of 2 basic boards and has 22 faston
terminals (6.35 mm).
Signal inputs
Inputs for pressure probe signals and DC signals use fastons
1 (+) and 2 (-). Inputs forDC signals 0-20mA, 4-20mA use
fastons 1 (+) and 2 (-) connected in parallel to fastons 22 and
21. For the potentiometer input, the max. end must be
connected to faston 20 (+Exc), the min. end to fastons 2 and
A3 (-), the cursor to faston 1 (+).
Remote setpoint inputs
Inputs 0-10V, 0-20mA, 4-20mA for any remote setpoints use
fastons 8 (+), 9 (-), 10 (+), 11 (-) as alternative to digital
communication (see HW configuration).
Digital inputs
NPN isolated digital inputs (from switch, relay, open collector)
or PNP 4mA use faston 6 (IN1), 7 (IN2) and 4 (GND).
Calibration output
For input from pressure probe fastons 21 and 22 are available
for calibration contacts.
Probe power output
Power for pressure probes, potentiometers, transmitters,
available on fastons 20 (+Exc) and 3 (-Exc).
Available voltages are: 5V/200mA, 10V/200mA, 15V/200mA,
24V/100mA (see hardware configuration).
Any shielding on the probe connection cable must be
connected to faston 3 (-Exc).
Repetition output W
Available at fastons 5 (+) and 4 (-) with output in voltage
0...10Vdc, -5...5Vdc, -10...10Vdc or 0...20mA, 4...20mA
isolated. Minimum and maximum can be corrected from panel
keys (see calibration of repetition output).
Output for MD8 expansion module
Can be available at fastons 19 (data), 18 (clock), 17 (gnd) as
alternative to OUT3 alarm trip output (see HW configuration).
Digital communication
- Type C.L. interface: reception diode available at fastons
10(+Rx), 11(-Rx), transmission transistor at fastons 8 (+Tx)
and 9 (-Tx).
Resistance in series to diode is 1KΩ, in series to transistor
collector 100Ω.
For connection in series, diode resistance is reduced to 100Ω
(see hardware configuration).
- Type RS485 4 wire interface (RS422 compatible):
transmission line at fastons 8 (+Tx) and 9 (-Tx).
The transmission distance covered by the RS422/RS485 serial
output reaches 500 meters with a maximum of 32 instruments
connected.
For line lengths greater than 50 meters, and when a line
termination impedance is required, solder jumpers X, Y, and Z
on the Solder Side of board 45028X.
Make the termination on the instrument farthest away on the
serial connection chain.
4 • ELECTRICAL CONNECTIONS
20
OUT1 alarm output
Relay output on fastons 16 (c) and 14 (n.c.); contact capacity
is 5A / 250Vac at cosϕ = 1; (see HW configuration for selection
of NO/NC contacts)
isolated logic output (*) type D2 23Vdc Rout 470Ω on fastons
16 (+) and 14 (-).
OUT2 alarm output
Relay output on fastons 16 (c.) and 15 (n.o./n.c.); contact
capacity is 5A / 250Vac at cosϕ = 1; (see HW configuration for
selection of NO/NC contacts)
isolated logic output (*) type D2 23Vdc Rout 470Ω on fastons
16 (+) and 15 (-).
OUT3 alarm output
Relay output on fastons 17 (n.c.),18 (c.) and 19 (n.o.); contact
capacity is 5A/250Vac at cosϕ = 1;
isolated logic output (*) type D2 23Vdc Rout 470Ω on fastons
19 (+) and 18 (-).
Schema equivalente di uscita tipo Logico D2
The OUT3 interface is an alternative to the output for MD8
(see hardware configuration).
(*) not isolation with respect to probe supply.
Instrument power supply
Power supply is applied to fastons 12 and 13.
Fuse
Located inside instrument; not replaceable by operator.
Power supply Type
100...240Vac T
11...27Vac/dc T
Current Voltage
0,5A 250V
1,25A 250V