CAME SMA Manual Del Usuario página 5

ACCESSORIES
DIGITAL INDUCTIVE LOOP SENSORS
CANCELLI AUTOMATICI
The CAME digital inductive loop detector range is the ideal solution for parking barrier control, motorized gates and doors,
SMA
Single loop detector
with 12 to 24V ac/dc power supply
TECHNICAL Technology
Tuning
SPECIFICATIONS
Detection mode
Presence time
Pulse time output
Inductance range
Frequency range
Frequency steps
Sensitivity (∆L/L)
Reaction time
Setup time at power on 8 s max by channel
Power supply (depending on model)
Mains Frequency
Power Consumption < 2.5 W
Storage temperature
range
DESCRIPTION
OF
THE SENSOR
Dip Switches
Detection state LED
(only with dual loop)
Detection state LED
LOOPS
A. CABLE SPECIFICATIONS FOR LOOP AND FEEDER
• 1.5mm
INSTALLATION
• Multi-strand cable
TIPS
• Insulation material : PVC or Silicone
• For the feeder cable, the wire must be twisted at least 15 times by meter
• Feeder for long runs used for foil screened cable is recommended (earth at equipment end only)
• The feeder cable must be firmly fixed to avoid any false detection (max length : 100 m)
• Waterproof cable junction box is required
B. LOOP GEOMETRY
Ea
Eb
vehicle access control and industrial control systems.
Dual loop detector
with 12 to 24V ac/dc power supply
p
inductive loop
automatic
presence
1 min to infinity (permanent
presence) with 250 steps
100 ms or 500 ms
20 µH to 1000 µH
20 kHz to 130 kHz
4 for single loop
2 for dual loop (for each loop)
0.005% to 0.5% with 250 steps
25 ms for single loop
50 ms for dual loop (each channel)
12-24 AC/DC ±10%
230 V AC ±10%
90 -----> 125 V AC ± 0%
48 to 62 Hz
–30°C to +70°C
Power LED
cross section area
2
L
Feeder cable
SMA2
p
Operating temperature
range
Degree of protection IP40
2 Output relays (free potential change-over
contact)
• max contact voltage : 230 VAC
• max contact current : 5A (resistive)
LED indicators
• 1 green LED : power
• 1 red LED : Loop status 1
• 1 red LED : Loop status 2
Protections
• loop insulation transformer
• zener diodes
• gas discharge clamping
Connection
Dimensions
Weight
Product compliance R&TTE 1999/5/EC
Presence time
adjustment
Sensitivity adjustment
potentiometer
(only with dual loop)
Sensitivity adjustment
potentiometer
• With two adjacent loops connected to a dual channel sensor, it is possible for
these loops to share a common slot, if so required.
As the channels are multiplexed, no interference will occur
• Avoid large loops or long feeder (max 100 m), the sensitivity will be affected
Documentazione
Tecnica
T20
rev.
05/2004
©
SMA
CANCELLI
AUTOMATICI
119RT20-GB
SMA230
Single loop detector
with 230V ac power supply
pp y
–30°C to +40°C
standard 11-pin round
connector 86CP11
77mm (H) x 40mm (W) x 75mm (D)
< 200gr
EMC 89/336/EEC
UL listed equipment for UL 508
Main connector
(86CP11)
1.1
CAME