Festo CMMT-AS-C2-3A-...-S1 Series, Instructions & Installation Manual

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LED Meaning
Flashes
red Error in the safety part, or a safety condition has been violated.
Flashes
yellow The safety sub­function has been requested but is not yet active.
Lights
up yel­
low The safety sub­function has been requested and is active.
Flashes
green Output stage, brake outputs and safety diagnostic outputs are blocked (safety
parameterisation is running).
Lights
up
green Ready, no safety sub­function has been requested.
Tab. 46 Safety LED
12.2 Repair
Repair or maintenance of the product is not permissible. If necessary, replace the
complete product.
1. If there is an internal defect: Always replace the product.
2. Send the defective product unchanged, together with a description of the
error and application, back to Festo.
3. Check with your regional Festo contact person to clarify the conditions for the
return shipment.
13 Dismounting
Disassemble in reverse order of installation.
Before dismounting
1. Switch off the power supply at the master switch.
2. Protect the system from being switched back on accidentally.
3. Wait at least 5 minutes until the intermediate circuit has discharged.
4. Let the device cool off to room temperature.
5. Before touching the power connections [X6A], [X9A], [X9B], check to ensure
they are free of voltage.
6. Disconnect all electrical lines.
To dismount the device
• Loosen retaining screws (2x) and remove the device from the attachment sur­
face.
14 Disposal
ENVIRONMENT!
Send the packaging and product for environmentally sound recycling in accord­
ance with the current regulations
è www.festo.com/sp.
15 Technical data
15.1 Technical data, safety equipment
General safety reference data
Request rate in accordance
with EN 61508 High request rate
Reaction time when the
safety sub­function is
requested [ms]
<
10 (applies for STO and SBC)
Error reaction time (how long
it takes for the diagnostic
output status to become cor­
rect once the safety sub­func­
tion has been requested) [ms]
<
20 (applies for STA and SBA)
Tab. 47 Safety reference data and safety specifications
Safety reference data for the safety sub-function STO
Wiring Without high
test pulses,
without or
with STA
evaluation With high
test pulses
and with STA
evaluation
1)
With high
test pulses
and without
STA evalu­
ation
Safety sub­function in
accordance with
EN 61800­5­2 Safe torque off (STO)
Safety integrity level in
accordance with EN 61508 SIL 3 SIL 3 SIL 2
SIL claim limit for a subsys­
tem in accordance with
EN 62061 SIL CL 3 SIL CL 3 SIL CL 2
Category in accordance with
EN ISO 13849­1 Cat. 4 Cat. 4 Cat. 3
Performance level in accord­
ance with EN ISO 13849­1 PL e PL e PL d
Probability of dangerous fail­
ure per hour in accordance
with EN 61508, PFH [1/h] 3.70 x 10
–11
9.40 x 10
–11
5.90 x 10
–10
Safety reference data for the safety sub-function STO
Wiring Without high
test pulses,
without or
with STA
evaluation With high
test pulses
and with STA
evaluation
1)
With high
test pulses
and without
STA evalu­
ation
Mean time to dangerous fail­
ure in accordance with
EN ISO 13849­1, MTTF
d
[a] 2400 1960 1960
Average diagnostic coverage
in accordance with
EN ISO 13849­1, DC
AVG
[%] 97 95 75
Operating life (mission time)
in accordance with
EN ISO 13849­1, T
M
[a] 20
Safe failure fraction SFF in
accordance with EN 61508 [%] 99 99 99
Hardware fault tolerance in
accordance with EN 61508,
HFT 1
Common cause factor for
dangerous undetected fail­
ures
β
in accordance with
EN 61508
[%] 5
Classification in accordance
with EN 61508 Type A
1) Safety sub­function STO tested and STA diagnostic output monitored by the safety controller at least 1 x
every 24 h.
Tab. 48 Safety reference data for the safety sub­function STO
Safety reference data for the safety sub-function SBC
Wiring Two brakes
1)
with
SBA evaluation
2)
One brake
3)
without
SBA evaluation
Safety sub­function in
accordance with
EN 61800­5­2 Safe brake control (SBC)
Safety integrity level in
accordance with EN 61508 SIL 3 SIL 1
SIL claim limit for a subsys­
tem in accordance with
EN 62061 SIL CL 3 SIL CL 1
Category in accordance with
EN ISO 13849­1 Cat. 3 Cat. 1
Performance level in accord­
ance with EN ISO 13849­1 PL e PL c
Probability of dangerous fail­
ure per hour in accordance
with EN 61508, PFH [1/h] 3.00 x 10
–10
9.00 x 10
–8
Mean time to dangerous fail­
ure in accordance with
EN ISO 13849­1, MTTF
d
[a] 1400 950
Average diagnostic coverage
in accordance with
EN ISO 13849­1, DC
AVG
[%] 93 –
Operating life (mission time)
in accordance with
EN ISO 13849­1, T
M
[a] 20
Safe failure fraction SFF in
accordance with EN 61508 [%] 99 87
Hardware fault tolerance in
accordance with EN 61508,
HFT 1 0
Common cause factor for
dangerous undetected fail­
ures
β in accordance with
EN 61508
[%] 5
Classification in accordance
with EN 61508 Type A
1) One brake connected to BR+/BR− and a second brake connected to BR­EXT; 2­channel wiring and request
via #SBC­A and #SBC­B.
2) Safety sub­function monitored by the safety controller via the SBA diagnostic output at least 1 x every
24 h.
3) Brake connected either to BR+/BR− or to BR­EXT; 1­channel request via the safety controller using #SBC­A
and #SBC­B; both inputs must be bridged externally.
Tab. 49 Safety reference data for the safety sub­function SBC
The technical data for the safety sub­function SS1 must be calculated individually
according to the application. Use the specified safety reference data for STO and
SBC for the calculation.