Technical specifications
A.4 Digital signal modules
Easy Book
110 Manual, 05/2009, A5E02486774-01
Digital outputs SM1222 DQ 16xRelay SM1222 DQ 16x24VDC
Surge current 7 A with contacts closed 8 A for 100 ms max.
Overload protection No No
Isolation (field side to logic) Coil to contact: 1500 VAC for 1 minute
Coil to logic: None
500 VAC for 1 minute
Isolation resistance
Isolation between open contacts
100 MΩ min. when new
750 VAC for 1 minute
N/A
Isolation groups 4 1
Current per common (max.) 10 A 8 A
Inductive clamp voltage N/A L+ minus 48 V, 1 W dissipation
Switching delay 10 ms max. 50 μs max. off to on
200 μs max. on to off
Lifetime mechanical (no load)
Lifetime contacts at rated load
10,000,000 open/close cycles
100,000 open/close cycles
N/A
Behavior on RUN to STOP Last value or substitute value (default value
0)
Last value or substitute value
(default value 0)
Cable length (meters) 500 shielded, 150 unshielded 500 shielded, 150 unshielded
SM 1222 DQ 16 x Relay SM 1222 DQ 16 x 24 VDC