2981570

PSR-...- 24DC/SSM/2X1
102759_02_en PHOENIX CONTACT 4
Structure
Figure 1 Structure
1 Metal lock for fixing on the DIN rail
2 COMBICON plug-in screw terminal blocks
3 COMBICON plug-in spring-cage terminal blocks
4 13-14, 23-24: N/O contact
5 31-32, 41-42: N/C contact
6 "Output" LED: Lights up in the event of a downtime,
OFF in the event of movement,
flashes in the event of a device error
7 "Mode" LED: Lights up when "Device OK",
flashes in the event of a sensor error
8 "Power" LED: Lights up in the event of voltage at A1/A2
9 +S1, +S2: Supply voltage for proximity switches IN1,
IN2
10 A1, A2: Supply voltage connection
11 MO: Downtime alarm output
12 FO: Error output (+24 V = device OK)
13 IN1, IN2: Proximity switch connection
Block Diagram
Figure 2 Block diagram
41 42
31 32
23 24
13 14
31
24
+S1
+S2
IN2
A2
MO FO
A1
IN1
13
41
23
42
Ord.-No.: 2981567
14
32
PSR-SSM
Power
Mode
Output
PSR
-SC
P- 24D
C/SSM
/2X1
O
rder N
o.: 29 81 56 7
APPRO
VALS
Serial N
o.
1
3
2
3
3
1
4
1
1
4
2
4
3
2
4
2
23 24
41 42
31 32
23 24
13 14
31
24
+S1
+S2
IN2
A2 MO FO
A1
IN1
13
41
23
42
Ord.-No.: 2981570
14
32
PSR-SSM
Power
Mode
Output
PSR
-SPP- 24DC/SSM
/2X1
O
rde
r N
o.: 29
81
5
7 0
AP
PRO
V
ALS
Serial No.
1
3
2
3
3
1
4
1
1
4
2
4
3
2
4
2
2
8
7
6
1
PSR-SCP- 24DC/SSM/2X1 PSR-SPP- 24DC/SSM/2X1
1
9
0
!
"
§
5
4
8
7
6
9
0
!
"
§
5
4
3
IN1
K1
Power
Mode
Output
K2
IN2
13
14
41
42
+S2
+S1
MO
A1
A2
23
24
31
32
FO
PSR-...- 24DC/SSM/2X1
102759_02_en PHOENIX CONTACT 5
Function
If the 24 V DC operating voltage is applied at terminal
blocks A1 and A2, the electronics checks (in the stop state)
whether at least one of the proximity switches provides a
signal at input IN1 or IN2.
The FO diagnostic output indicates the ready state with
+24 V. The "Power" and "Mode" LEDs light up. If this is the
case (one or both proximity switches provide a signal), the
internal output relays switch to the operated condition. N/O
contacts 13-14 and 23-24 are closed, N/C contacts 31-32
and 41-42 are open, and the "Output" lights up. Alarm
output MO indicates +24 V.
The outputs remain active in their switch position as long as
no signal change is generated at inputs IN1 and IN2 by a
movement.
N/O contacts 13-14 and 23-24 open and N/C contacts
31-32 and 41-42 close if a signal change with a frequency
> 2.5 Hz is detected at inputs IN1 and IN2. Alarm output MO
is a high-resistance output.
If the input circuit frequency is less than 2 Hz (stop state
entered or movement not hazardous), relays K1 and K2
switch. N/O contacts 13-14 and 23-24 are closed and N/C
contacts 31-32 and 41-42 are open. Alarm output MO
indicates +24 V.
In the event of an error (sensor error), the "Mode" LED
flashes and FO is a high-resistance output.
For a connection example, please refer to page 6.
Assembly and Startup
In order to comply with UL approval, use copper cables that are designed for operating temperatures > 75°C.
For reliable and safe-to-touch contacts, strip the cable ends as follows:
Figure 3 PSR-SCP- 24DC/SSM/2X1 Figure 4 PSR-SPP- 24DC/SSM/2X1
Before working on the device, disconnect the power.
7 mm
41 42
31 32
23 24
13 14
31
24
13
41
23
42
14
32
utp
ut
S
SC
P
24DC
/SSM
/2X1
O
rder N
o.: 29 81 56 7
APP
RO
VALS
Serial No.
1
3
23 24
41 42
31 32
23 24
13 14
31
24
13
41
23
42
14
32
P
de
O
utput
APP
R
O
VA
LS
Se
rial N
o.
1
3
10 mm
PSR-...- 24DC/SSM/2X1
102759_02_en PHOENIX CONTACT 6
Mounting the Proximity Switches
Requirements for a Gearwheel or Gear Rack:
The design of the gearwheel or gear rack is of particular
importance for safe operation:
The surface of the gearwheel must always be greater than
the gap between the teeth. This ensures that at least one
proximity switch is actuated.
Arrangement of the Proximity Switches:
Tooth > gap
Tooth > switch diameter
Depth of gap > switching interval of the switch
–a (switching interval of the switch/2)
Connection Example
Figure 5 Two-channel downtime monitoring using two
PNP or 2-wire proximity switches, suitable up
to safety category 3
*
, SIL 3
Figure 6 Mounting the proximity switches
© PHOENIX CONTACT 05/2006
Prevent cross circuits between IN1 and IN2
by using a suitable cable installation.
* Safety category 4 is possible if a test is performed within 24 hours of
machine downtime to detect the internal sensor errors.
14 24 42
A1
A2
23
MO
IN1 IN2
+S1
+S2
FO
PSR-SSM
24V DC
GND
32
13
31
41
GND
S2
S1
a
a
S1
S1
S2
S2
Gearwheel or gear rack

2981570

Mfr. #:
Manufacturer:
Phoenix Contact
Description:
Safety Relays PSR-SPP- 24DC/ SSM/2X1
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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