Table of Contents
Advertisement
Installing and Connecting the Basic System
Example:
Indirect Connection of Actuators via Coupling Elements (Type L)
Connect the 24 V DC load voltage (L+ potential to terminal 1, L- potential to terminal 10).
Connect the coupling relays to the outputs selected (see Figure 4-13).
Please note, that some applications (e.g. special valves for burner controls) require the use of
diverse coupling relays. A list of tested coupling relays is contained in section 4.3.
L+
K1a
L+
24 V DC
-
L
Figure 4-13. Indirect Connection of an Actuator via Coupling
4.3
Connecting Actuators to Failsafe Digital Outputs
In RUN, the S5-95F tests the digital output modules once every hour. To do so, it disables the
outputs for a brief period of time, the length of which is different for onboard I/Os than for external
I/Os (blanking time).
Table 4-5. Blanking Times for Testing Digital Output Modules
I/Os Tested by the S5-95F
Onboard digital output modules
External digital output modules
4-16
Subunit A
DIGITAL
OUT
IN
12× 24V DC
16× 24V DC
1
1
2
2
3
3
4
4
DQ 32.2
5
5
6
6
7
7
8
8
-
9
9
L
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
L+
DQ 32.2
.
.
.
K1a
K1b
Actuator
.
.
.
K1b
Elements
Blanking Time at Output
Subunit B
DIGITAL
OUT
IN
12× 24V DC
16× 24V DC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
-
L
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
5 ms
<
7 ms
<
EWA 4NEB 812 6210-02
S5-95F
Advertisement
Table of Contents
