gefran 1000 Manual De Uso página 11

G F
A
B
D
E
A - Digit height: 14mm (1000), 10mm (1001), 20mm (1101), green.
Value of variable controlled to 3 digits (1000) 3, 5 digits (1001 – 1101) with decimal
point on appropriate scales.
Positive (HI) or negative (LO) off-scale message. Message for broken/incorrect con-
nection of probe (SBR: open circuit / ERR: probe reversed) and display of configura-
tion and calibration messages.
B - Digit height: 14mm (1000), 10mm (1101), 14mm (1101), green.
Setpoint value.
Alarm limit range –199...+999 (1000) –999+1999 (1001 – 1101).
Alarm limits are accompanied by flashing of AL1, AL2, AL3/HB LEDs. Main output
value in percentage (0...99%) followed by letter P.
Parameter values and configuration data.
C - Function key
Accesses setpoint and alarm functions (each function is specified by flashing of LED
for reading and/or changing of values).
If the F key is not pressed to confirm a change, saving is done automatically after 10
POWER SUPPLY
CONTINUOUS
CONTROL
OUTPUT
21 connections are available for 6.35 mm faston terminals.
Main inputs
Inputs from TC or RTD (2 wires) are attached to faston 1 (positive) and 3 (negative).
(Short circuit 3 and 4 for RTD with 2 wires).
For RTD with 3 wires, the single wire is attached to faston 1; for the remaining wires, one goes
to faston 3 and the other to 4.
Input from current transformer (HB function)
If the instrument accepts this input, it is attached to fastons 6 and 7. Secondary current input
for CT, impedance 20mW, 5A, 50/60 Hz.
Power supply
Voltage (100...240Vac) is attached to fastons or terminals 12 and 14. A version with
11...27Vac/dc voltages is available.
Fuse
Inside instrument, not replaceable by user.
Power supply Type
100...240Vac T
11...27V T
3 • DESCRIPTION OF FACEPLATE
G
A
B
C
D
E
4 • CONNECTIONS
MAIN
(D2)
NC
C
MAIN
NO
NC
C
AL1
NO
Current Voltage
0,5A 250V
1,25A 250V
F
A
B
C
sec. and the display returns to setpoint value.
The F key accesses the various configuration and saving procedures for changed
settings.
D - Raise Key / E - Lower Key
These keys raise or lower the value of the displayed function.
The raising (lowering) speed is proportional to the time the key is pushed. The pro-
cedure is not cyclical. When the maximum (minimum) of the setting range is reached
with the key pushed, the raise (lower) function stops.
F - Main output on. Green LED.
G - Alarm signal. Red LED.
Front panel protection IP54 (IP65 available)
C
NO / NC
C
NO / NC
TC
Main output
Relay output to terminals or fastons 19 (N.O.) 18 (C) and 17 (N.C.); contact capacity
5A/250Vac at cosj = 1.
Logic output type D2 24V/20mA max. is available to fastons 16 (positive) and 15 (negative).
Continuous output to terminals or fastons 19 (+) and 17 (-) as alternate to relay output.
Alarm outputs
For alarm relays:
terminals or fastons 20 (N.C.) 21 (C) and 22 (N.O.) for alarm 1; terminal faston 11 and 100
(N.C. or N.O.) for alarm 2; terminals 9 and 8 (N.C. and N.O.) for alarm 3/HB.
NC contacts are available for alarms 2 and 3 by changing the jumpers. Contact capacity is 5A
for alarm 1 and 3A/250Vac for alarms 2 and 3.
Digital communication (Current loop / 485)
If the instrument accepts a 1200 baud Passive Current Loop interface, the reception diode is
available at fastons 8 (Rx+) and 9 (rx-); transmission transistor to fastons 10 (Tx+) and 11 (tx-).
In standard configuration for parallel connection on the serial line, the resistance in series to
the diode is 1K Ohm; 100 Ohm to the transistor collector.
For the series connection, the resistance in series to the diode is 100 Ohm. If the instrument
accepts 1200...9600 baud 4-wire RS485 interface, reception is available to fastons 8 (Rx+)
and 9 (Rx-); transmission to fastons 10 (Tx+) and 11 (Tx-) (see hardware configuration).
11
G F
D E C
AL2
SERIAL
LINE
AL3/HB
Current input from CT 5Aac
PT100 PTC Pt100
3 wires 2 wires