8
Connecting terminals and LED displays
Terminal Function
LED
Meaning if LED on
A1
Operating voltage connection U
B
A2
Operating voltage connection earth
PWR
Operating voltage U
B
present
X1, X2
Outputs for supplying device inputs or controlling sensors
EN
Input for enabling all outputs ENABLE
EN
High level on terminal
S1
Control circuit input (cf. Tables 2 and 3)
S1
High level on terminal
S2
Control circuit input (cf. Tables 2 and 3)
S2
High level on terminal
S3
Control circuit input (cf. Tables 2 and 3)
S3
High level on terminal
I1 – I4
Inputs for connecting sensors
I1 – I4
High level on terminal
Q1 / Q2
Outputs group A (semiconductor)
Q1 / Q2
U
B
on terminal
Q3 / Q4
Outputs group B (semiconductor)
Q3 / Q4
U
B
on terminal (even if flashing)
FLT
Error (see also "Error Codes of Error LED")
Setting the Function Blocks
Use the FUNCTION rotary switch to select the function block for the respective safety application. Function blocks where inputs I1 - I4 are assigned
to a function group AB are designated single functions. Function blocks where inputs I1, I2 are assigned to function group A and inputs I3, I4 are
assigned to function group b are designated combination or dual functions. In the combination functions the function group B (grey background) is
hierarchically subordinate to function group A. In other words, if function group A is shut down, function group B will be shut down too (regardless of
the status of inputs I3, I4). Dual function 8 possesses two separate function groups A and B. Regardless of the selected function block, you can use
the DELAY rotary switch to set a release delay for outputs Q3 and Q4 (cf. Table 1). The start function of the function groups and the possibility of
retriggering the release delay are defined by the configuration of control inputs S1 - S3. When operating voltage is connected, the status of these
control inputs is read (cf. Tables 2 and 3).
FUNCTION rotary switch (Table 1)
Input assigment
Output function
Function
group
Safety application
Q1
Q2
Q3
Q4
0
Switch position not allowed
Emergency stop, safety door, switching mat (with QE)
X1
X2
I1
I2
1
OR
U
B
U
B
I3
I4
NO
DELAY
NO
DELAY
DELAY DELAY
Safety door monitoring 1 NC, 1 NO (with QE)
X1
X2
I1
I2
2
OR
U
B
U
B
I3
I4
NO
DELAY
NO
DELAY
DELAY DELAY
3.1
non-contact safety device type 4 (without QE)
U
x
U
x
I1
I2
3.2
PDF (X1-I1) / non-contact safety device type (X2-I2)
X1
X2
I1
I2
3
Muting
U
B
U
B
I3
I4
NO
DELAY
NO
DELAY
Muting
lamp/
Reset-
Required*
DELAY
4
Two-hand function EN 574 III C (with QE)
X1
X1
X2
X2
I1
I2
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
NO
DELAY
Emergency stop, safety door (with QE)
X1
X2
I1
I2
5
5.1
Two-hand function EN 574 III A (with QE)
5.2
Inching with 5 s confirmation limit (with QE)
X1
X2
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
NO
DELAY
Emergency stop, safety door (with QE)
X1
X2
I1
I2
6
Emergency stop, safety door (with QE)
X1
X2
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
DELAY
Emergency stop, safety door, non-contact safety device
type 4 (without QE)
U
x
U
x
I1
I2
7
Emergency stop, safety door, non-contact safety device
type 4 (without QE)
U
x
U
x
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
DELAY
Emergency stop, safety door, non-contact safety device
type 4 (without QE)
U
x
U
x
I1
I2
8
Emergency stop, safety door, non-contact safety device
type 4 (without QE)
U
x
U
x
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
DELAY
Emergency stop, safety door (with QE)
X1
X2
I1
I2
9
Emergency stop, safety door, non-contact safety device
type 4 (without QE)
U
B
U
B
I3
I4
NO
DELAY
NO
DELAY
NO
DELAY
DELAY
U
x
- signal from X1 or X2 or U
B
or semiconductor outputs from sensors / QE - cross monitoring
*Flashing if Reset-Required
