GridScan/Mini-SB2/-ST2
English
10
© CEDES | V 2.2
9. Timing diagram
Figure 14:
General timing diagram
Table 2:
General timing table
10. Start-up
1. Switch on mains and power-up the door control unit. The LEDs on the receiver edge blinks during the start-up phase.
2. Check the LED on both edges (power, status).
3. Test if the system is working correctly by letting the door open and close, interrupting the light during the opening
and closing process.
11. LED status description
Receiver edge (Rx)
Emitter edge (Tx)
Table 4:
LED status description receiver edge
= LED on
= LED off
= LED blinking
Table 3:
General timing table
Table 5:
LED status description emitter edge
TEST
t
1
t
2
t
7
t
6
t
3
t
5
t
4
Power supply
Test input (L)
PNP / NPN output
FSS output
Object
No object
Object detection
On
Off
HIGH
LOW
HIGH
LOW
Closed
Open
Time
Value [ms]
Power-up time
t
1
max. 2,500
Response time with 32
elements
t
2
typ. 90
max. 175
Release time
t
3
typ. 90
max. 175
Test response time
t
4
max. 100
Restart time
t
5
max. 200
FSS sequence time
t
6
1
Test time
t
7
> 100
PNP
NPN
Power supply U
SP
10 ... 30 VDC
10 ... 30 VDC
Power supply GND
0 V
0 V
Test input HIGH
> 10 VDC
> 10 VDC
Test input LOW
< 2 VDC
< 2 VDC
Output HIGH
> U
SP
- 2 VDC
high
impedance
Output LOW
high
impedance
< 2 VDC
Green LED
Red LED Sensor status
Light curtain free
Safeguarded area interrup-
ted or door closed
Start-up (slow blinking)
Internal malfunction (fast
blinking)
No power or edge is
defective (see Chapter 12)
Green LED
Sensor status
Power OK
No power or edge is defective
(see Chapter 12)
