Safety Wiring - LinMot C1100 series Installation Manual

Installation Guide C1100

9 Safety Wiring

The C1100 drives with the -1S option have internal safety functions:
Two Safety relays Ksr in series, which support the supply voltage for the motor drivers. There are also two
feedback contacts for each relay.
To enable the -1S drives both relays have to be switched on.
Minimal wiring:
• Connect X33.8 and X33.4 to 24VDC (from safety)
• Connect X33.7 and X33.3 to GND (from safety)
Never connect X33.8 and X33.4 to the logic supply of X4!
Overvoltage protection must be provided externally and sized according the safety circuit of
the machine!
The drop out time of the relays is depending on the external circuitry!
Safety Relay Ksr
Nominal voltage
Min. pick-up voltage at 20°C
Drop-out voltage at 20°C
Drop-out time (no protection circuit)
Coil resistance at 20°C
Type
Contact lifetime
Manufacturer and type
Drive Classification according EN ISO 13849-1 (safety of machinery)
Category
Performance Level
Diagnostic Coverage
Mean Time to hazardous failure of one channel
NTI AG / LinMot 0185-1062-E_6V12_IG_Drives_C1100
24 VDC
≤ 16.8V
≥ 2.4 V
Typ. 3ms
2'100 Ω ± 10%
EN 50205, type A
> 10'000'000
Elesta relays / SIS112 24VDC
cat = 3
PL = d
DC = high (99%)
MTTF = high (100 years typically, see calculation example
d
below)
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