gefran 1000 Manuel D'utilisation page 13

Notes:
1. Work phase 0 (SP)
In normal operation, the upper display shows the process variable (PV) (measured at
input), while the lower display shows the control setpoint. A change in setpoint takes
effect immediately.
2. Work phases 1, 2, 3 (alarms)
Alarm 1 is always enabled. Alarms 2 and 3 depend on the value of the brd code (in
CFG2), which reflects the hardware configuration. If one of the three alarms is config-
ured as HB (see code A.r.F. in CFG2) phase 4 will appear instead of phases 1,2 or 3,
with the respective LED flashing. If it is configured as LBA, the respective phase will
not appear. See Functional Notes/Alarms.
3. Work phase 4 (HB alarm)
Enabled only if the instrument has the CT input (see brd code) and if the HB alarm is
enabled (see Out code in CFG2). Signaled by flashing of letter "A" on least significant
digit of lower display. The most significant digits display the whole value of the HB limit,
while the upper display shows the value of current in the load read by the CT input in
Ampere (resolution 0.1 Ampere). Press the Raise or Lower key instead of letter A to
see the decimal figure of the limit that persists during the change. When the key is
released, "A" reappears after 1 second.
Press F to confirm the set value and go to the next phase. See Functional
Notes/Alarms/HB Alarm.
4. Work phase 5 (CT input)
Enabled only if the instrument has the CT input (see brd code), and is independent of
the HB alarm. The lower display shows the whole value of the load current, followed by
letter "A" (steady). It remains on the display without time limit. See Functional Notes/CT
input function.
5. Work phase 6 (POWER)
Accessible only with the AUTO/MAN function engaged (see brd code in phase CFG.2).
A detailed description of the AUTO/MAN function may be found in Functional Notes /
AUTO/MAN function.
AUTO/MAN and MAN/AUTO switching
In work phase 6, press the Raise and Lower keys simultaneously to switch from auto-
matic to manual. Press F to switch from manual to automatic. ("P" steady in automatic,
flashing in manual). In manual, you can vary output power directly with the Raise and
Lower keys. See Functional Notes.
Self-tuning Start/stop
Press the F and Raise keys simultaneously for 3 seconds to activate the self-tuning
procedure. The same command interrupts the procedure. See Functional Notes /
SELF-TUNlNG.
Introduction to setting and configuration procedures
Programming is performed in 3 phases:
0) Setting 1/2) Configuration
These phases are accessed with the F key.
Phase 0 / Setting
In normal operation, press key F for 5 sec. to set the following parameters:
_Pb_ / Proportional band in range 0.0...99.9% F S.
If the control is ON/OFF (integral, derivative, and cycle time null), the set value defines
hysteresis -199...+999 (1000) -19.9...+99.9 (1000 scale with decimal point) -
999...+1999 (1001-1101) -99.9...+199.9 (1001-1101 scale with decimal point).
_rSt _/: Manual reset in range -199...+999 (1000) -19.9...+99.9 (1000 scale with deci-
mal point) -999...+1999 (1001-1101) -99.9...+199.9 (1001-1101 scale with decimal
point).
When the control has settled, bring the value of the controlled quantity exactly to the
setpoint (at times this is necessary in PD control).
_Ct/: Cycle time in range -2...200. By setting Ct=0, the cycle time is excluded and the
control becomes ON/OFF (in this case, Pb becomes hysteresis in scale points). By set-
ting Ct = -1, you get fast PWM output with cycle time (duty cycle) fixed at 100 millisec-
onds, usable only with output D2 or with continuous output 0...10V or 0...20mA. Set Ct
= -2 for continuous output 2...10V or 4...20mA). Values Ct = 1 at 200 are considered as
cycle time in seconds.
P.St/: Reset power in range 0 -100%. Reset action equals free positioning of the
Proportional band. By setting 0 the P B. is below the setpoint; by setting 100 the P.B. is
completely above the setpoint (with main output in direct function). In case of ON/OFF
control, the reset power set has no effect.
S.tu/: Insertion of Self and Auto-tuning function (see table).
S.tu SELF
0 NO
1 NO
2 YES
3 YES
4 NO
5 NO
+8 to disable the software filter on the controlled variable (recommended for linear scales)
Automatic turn-off of self-tuning at end of calculation
_Lb.t/ Wait time for tripping of LBA alarm (1 ..240 min); by setting 0, the BA function is
deactivated.
6 • WORK MODE
7 • PROGRAMMING
AUTO SOFT-START
NO NO
YES NO
NO NO
YES NO
NO YES
YES YES
Software On/Off
Press the F and Lower keys simultaneously for 5 seconds to put the instrument in OFF
status (display off, outputs deactivated). Press F for 5 seconds to activate the instru-
ment. See the specific section in Functional Notes.
Display of software release number
Keep the "F" key pressed for 3 seconds: the upper display will show the message Upd
and the lower display the software release number (ex. Upd/11.0). When the key is
released, the display returns to work mode, phase 0.
Error messages and signals
Message Sbr on upper display: probe input interrupted (TC-RTD) .
Message Err on upper display: incorrect connection; probe reversed (TC); probe in
short circuit (RTD).
Message Lo on upper display: off scale low.
Message Hi on upper display: off scale high.
Upper display flashing: self-tuning or soft-start in progress. Upper and lower display
flashing: LBA alarm on. Two decimal points (one only for scales with decimal point)
flashing on upper display: auto-tuning on. Decimal point flashing with display off: instru-
ment in software off (OFF) status.
P flashing on lower display: work phase 6 MAN mode (power settable from panel
keys).
P steady on lower display: work phase 6 AUTO mode (power display in automatic).
A flashing on lower display: work phase 4 (HB alarm limit setting).
A steady on lower display: work phase 5 (ammeter input display).
LED AL1, AL2, AL3 flashing: alarm limit setting phase.
LED AL1, AL2, AL3 on: alarm relay energized.
LED AL1, AL2, AL3 off: alarm relay de-energized or alarm not enabled.
MAIN LED on: main output on (MAIN relay energized, output D2 logic level 1)
MAIN LED off: main output off (MAIN relay de-energized, output D2 logic level 0)
MAIN LED flashing rapidly: continuous output (LA) on.
Power on
At power-on, the instrument runs a 5-second initialization cycle during which the out-
puts are disengaged (relays de-energized, D2 and continuous outputs OFF) and all
segments and LEDs on the display flash. The instrument then goes to work phase 0
(automatic start) or 6 (manual start).
For the duration of the first cycle time, the software filter on the signal input is disen-
gaged.
_Lb.P/ Power supplied when LBA alarm is active, settable in range 0...100%
When setting is complete, press the F key to return to normal operation.
Configuration Phase 1 (CFG1)
To access phase 1, press the F key until the message CFG1 appears on the display.
_It/: Integral time in range 0.0...99.9 min (by setting 0.0, the integral action is exclud-
ed). A high integral time generates a weak integral action, while a short integral time
generates a strong integral action.
_dt/ Derivative time in range 0.00...9.99 mln (1000) 0.00...19.99 min (1001-1101) (by
setting 0.00 the derivative action is excluded). The effectiveness of the derivative
action increases proportionately with the derivative time.
SOF/: Soft-start time in range 0.0...99.9 min (by setting 0.0, the Soft-start action is
excluded). The Soft-start action concludes at the set time or with the controlled variable
in Proportional band.
Hy1/: Hysteresis or Proportional band (PD) for AL1 in range -199 +999 digit (1000) -
19.9...+99.9 (1000 scale with decimal point) -999...+1999 (1001-1101) -99.9...+199.9
(1001-1101 scale with decimal point). A negative (or positive) number indicates a hys-
teresis band positioned below (or above) the alarm limit, and is characteristic of a direct
(or reverse) alarm.
Hy2/: Hysteresis for AL2 in range -199.. +999 digit (1000) -19.9.. +99.9 (1000 scale
with decimal point) -999...+1999 (1001 1101) -99.9...+199.9 (1001-1101 scale with
decimal point).
Hy3/ Hysteresis for AL3 in range -199...+999 digit (1000) -19.9...+99.9 (1000 scale with
decimal point) -999...+1999 (1001-1101) -99.9...+199.9 (1001-1101 scale with decimal
point).
Hb.s is selectable only on instruments equipped with input from current transformer
(CT) Full scale current setting from 0...199.9 (99.9).
no / Instrument code connection in serial line in range 0...999; appears only for instru-
ments equipped with serial communication (version 1 H), with specific setting of "brd"
code (see CFG2).
bAU/ Baud rate for serial communication as per the table:
0 1200 baud
1 2400 baud
2 4800 baud
3 9600 baud
Available only for instruments fit with a serial card, with specific setting of "brd" code
(see CFG.2).
N.B.: for information on the serial protocol, see the manual entitled "Introduction to seri-
al communication:"
FA.P/ "Fault action" power in range 0-100%. Supplied to main output in case of broken
input probe (Sbr or Err signal on display).
13
CL, 485
CL, 485
485
485