3
SRB 220XV2 V.2
Operating instructions
Safety-monitoring module
EN
Monitored inputs:
Cross-wire detection:
optional
Wire breakage detection:
yes
Earth connection detection:
yes
Number of NO contacts:
0
Number of NC contacts:
2
Conduction resistance:
max. 40 Ω
Outputs:
Number of safety contacts:
4
Number of auxiliary contacts:
0
Number of signalling outputs:
0
Switching capacity of the safety contacts:
13-14, 23-24 (STOP 0):
max. 250 V / 8 A ohmic (inductive
in case of appropriate protective wiring);
AC-15: 230 VAC / 6 A, DC-13: 24 VDC / 6 A;
Residual current U
B
= 24 VDC at ambient temperature
bis 45°C: 16 A / 55°C: 16 A / 60°C: 15 A;
Residual current U
B
= 24 VAC at ambient temperature
up to 45°C: 16 A / 55°C: 13,5 A / 60°C: 12 A;
37-38, 47-48 (STOP 1):
max. 250 V / 8 A ohmic (inductive
in case of appropriate protective wiring);
AC-15: 230 VAC / 3 A, DC-13: 24 VDC / 2 A;
Residual current U
B
= 24 VDC at ambient temperature
up to 45°C: 12 A / 55°C: 11 A / 60°C: 10 A;
Residual current U
B
= 24 VAC at ambient temperature
up to 45°C: 11 A / 60°C: 9 A / 60°C: 8 A
Fuse rating of the safety contacts:
STOP 0: 8 A slow blow,
STOP 1: 8 A slow blow
Utilisation category to EN 60947-5-1:
AC-15, DC-13
Dimensions H x W x D:
100 mm × 45 mm × 121 mm
The data specified in this manual are applicable when the
component is operated with rated operating voltage U
e
±0%.
2.5 Safety classification
Standards:
EN ISO 13849-1, IEC 61508, EN 60947-5-1
PL:
STOP 0: up to e,
STOP 1: up to d
Category:
STOP 0: up to 4,
STOP 1: up to 3
PFH value:
STOP 0: ≤ 2.0 x 10
-8
/h,
STOP 1: ≤ 2.0 x 10
-7
/h
DC:
STOP 0: 99% (high),
STOP 1: > 60% (low)
CCF:
> 65 points
SIL:
STOP 0: up to 3,
STOP 1: up to 2
Service life:
20 years
The PFH values of 2.0 x 10
-8
/h and 2.0 × 10
-7
/h applies to the combina-
tions of contact load (current through enabling contacts) and number of
switching cycles (n
op/y
) mentioned in the table below. At 365 operating
days per year and a 24-hours operation, this results in the below-
mentioned switching cycle times (t
cycle
) for the relay contacts.
Diverging applications upon request.
Contact load
n
op/y
t
cycle
20 %
525,600
1.0 min
40 %
210,240
2.5 min
60 %
75,087
7.0 min
80 %
30,918
17.0 min
100 %
12,223
43.0 min
3. Mounting
3.1 General mounting instructions
Mounting: snaps onto standard DIN rails to EN 60715.
Snap the bottom of the enclosure slightly tilted forwards in the DIN rail
and push up until it latches in position.
3.2 Dimensions
All measurements in mm.
Device dimensions (H/W/D): 100 x 45 x 121 mm
4. Electrical connection
4.1 General information for electrical connection
As far as the electrical safety is concerned, the protection
against unintentional contact of the connected and therefore
electrically interconnected apparatus and the insulation of the
feed cables must be designed for the highest voltage, which
can occur in the device.
The electrical connection may only be carried out by authorised
personnel in a de-energised condition.
Wiring examples: see appendix
5. Operating principle and settings
5.1 LED functions
• K1: Status channel 1
• K2: Status channel 2
• K3: Status delayed enabling circuit (LED is ON, when the delayed
enabling circuits 37-38 are closed)
• K4: Status delayed enabling circuit (LED is ON, when the delayed
enabling circuits 47-48 are closed)
• U
B
: Status operating voltage (LED is on, when the operating voltage
on the terminals A1-A2 is ON)
• Start: LED is briefly on at the start-up of the safety-monitoring module
5.2 Description of the terminals
(see Fig. 1)
Voltages: A1
A1.1
A2
+24 VDC / 24 VAC
+24 VDC / 24 VAC
0 VDC / 24 VAC
Inputs:
S11-S12
S11-S32
S21-S22
S31-S32
Input channel 1 (+)
Input channel 2 (+)
Input channel 2 (–) (with cross-wire short
detection)
Input channel 2 (+) (with cross-wire short
detection)
Outputs: 13-14
23-24
37-38
47-48
First safety enabling circuit (STOP 0)
Second safety enabling circuit (STOP 0)
Third safety enabling circuit (STOP 1)
Fourth safety enabling circuit (STOP 1)
Start:
S33-S34
S13-S14
Y39-Y40
Feedback circuit and external reset (monitored)
Automatic start
Reset timer