Siemens S7-300 - A.2 Technical Data

Technical data
A.2 Technical data
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
167
Encoder inputs
Position detection
 Incremental
 Absolute
Signal voltages
 Symmetrical inputs: 5 V in accordance with RS 422
Asymmetrical inputs: 24 V/ typically 9 mA
Input frequency and cable length for symmetrical
incremental encoders with 5 V supply
max. 1 MHz with 32 m shielded cable length
Input frequency and cable length for symmetrical
incremental encoders with 24 V supply
max. 1 MHz, with 100 m shielded cable length
Input frequency and cable length for symmetrical
incremental encoders with 24 V supply
 max. 50 kHz, with 25 m shielded cable length
 max. 25 kHz, with 100 m shielded cable length
Data transfer rate and cable length for absolute encoders
 max. 125 kHz with 320 m shielded cable length
 max. 250 kHz, with 160 m shielded cable length
 max. 500 kHz, with 60 m shielded cable length
 max. 1 MHz, with 20 m shielded cable length
Listen mode with absolute encoders Yes
Input signals
 Incremental: 2 pulse trains, 90° phase shift, 1 zero pulse
 Absolute: Absolute value
Digital inputs
Number of digital inputs 4
Number of simultaneously controllable digital inputs 4
Electrical isolation No
Status display Yes, one green LED per input
Input voltage
 0-signal: -30 ... 5 V
 1-signal: 11 ... 30 V
Input current
 0-signal: ≤ 2 mA (quiescent current)
 1-signal: 9 mA
Input delay
 0- → 1-signal: max. 200 µs
 1- → 0-signal: max . 200 µs
Connection of a 2-wire BERO supported
Unshielded cable length 32 m
Shielded cable length 600 m
Switching rate max. 500 Hz
Insulation test VDE 0160