Installation Notes - gefran 40T 72 Manual De Uso

• Filter - outputs with reference to parameters F.0 and r.A
DON = Delayed activation
Alarm
setpoint
Variable
Output
Alarm
rA
DOF = Delayed deactivation
Alarm
setpoint
Variable
Output
Alarm
rA
• Transformer
TRAFO 1
Size
TRAFO 1: TRAFO 5:
TRAFO 1
L: 44,5mm, L: 51,5mm,
TRAFO 5
B: 46,2mm, B: 52,5mm,
H: 32,5mm H: 35mm
Conform to VDE 0551, EN 60742, CE
25 ±1
Always power the devices by means of the TRAFO1 transformers specified in the manual (one for each device) when:
• The application is unknown
• Multiple devices have input signals that are not isolated from one another, such as, for example: non-isolated grounded thermocouples, transducers or transmitters
powered by a single supply, linear inputs with voltage or current not isolated from one another.
• It is a general rule that devices with shared signals (probes, transmitters, signal retransmission, etc.) must be powered by a separate transformer for each device.
• Any special cases not covered by the above example must be evaluated from time to time.
• One possible example of a power supply by a single transformer is the case of devices with RTD or PTC probes, with relay or logic outputs connected to individually
isolated devices (such as GTS static groups).
ATTENTION: in case of an input with a NON-isolated grounded thermocouple, the secondary of the power transformer for the device CANNOT be grounded: doing so
will cause the device to fail, with probable blowing of the internal fuse.
The diagrams refer to a normal absolute alarm with hysteresis H = 0
F.0 = 1
rA
time
t < rA
F.0 = 3
rA rA
time
7 • ACCESSORIES
TRAFO 5
• ORDER CODE
3VA, 230/24Vac transformer
10VA, 230/24Vac transformer
5,50m

• Installation notes

Alarm
setpoint
Variable
Output
Alarm
Alarm
setpoint
Variable
Output
Alarm
• RS323 interface cable for
• PTC / NTC
TECHNICAL DATA
Mod. probe:
Cap material:
Temperature range:
PTC:
Response time:
Isolation:
Wire material:
Wire length:
16
F.0 = 2
DBI = Delay in turning on output after output is
turned off
rA t < rA
t > rA
F.0 = 4
DP0 = Delayed activation only at power-on
rA
configuration
N.B.:
the PC configuration
cable is supplied with the
programming software.
WARNING: make the
connection with the
device powered and with
inputs and outputs
disconnected.
• ORDER CODE
Cable + Floppy
COD. 1108200
Ambient probe
Plastic (Ø 7 x 25mm)
-20...80°C
R 25°C = 1KΩ ±1%
(KTY 81-110)
20sec (in still air)
100MΩ, 500Vd.c. between cap
and terminals
Unipolar in PVC (12/0,18)
5,50m
time
time
• ORDER
CODE
PTC 7 x 25 5m
NTC