User Manual

Technical specifications
A.1 General technical specifications
Easy Book
286 Manual, 03/2014, A5E02486774-AF
Table A- 6 High potential isolation test
High potential isolation test
24 VDC / 5 VDC nominal circuits
115 VAC / 230 VAC circuits to ground
115 VAC / 230 VAC circuits to 115 VAC / 230 VAC
circuits
115 VAC / 230 VAC circuits to 24 VDC / 5 VDC
circuits
Ethernet port to 24 VDC / 5 VDC circuits and
ground
1
520 VDC (type test of optical isolation boundaries)
1500 VAC
1500 VAC
1500 VAC (3000 VAC/4242 VDC type test)
1500 VAC (type test only)
1
Ethernet port isolation is designed to limit hazard during short term network faults to hazardous voltages. It does not
conform to safety requirements for routine AC line voltage isolation.
Protection class
● Protection Class II according to EN 61131-2 (Protective conductor not required)
Degree of protection
● IP20 Mechanical Protection, EN 60529
● Protects against finger contact with high voltage as tested by standard probe. External
protection required for dust, dirt, water and foreign objects of < 12.5mm in diameter.
Rated voltages
Table A- 7 Rated voltages
Rated voltage
Tolerance
24 VDC
20.4 VDC to 28.8 VDC
120/230 VAC
85 VAC to 264 VAC, 47 to 63 Hz
Note
When a mechanical contact turns on output power to the S7
-1200 CPU, or any digital signal
module, it sends a "1" signal to the digital outputs for approximately 50 microseconds. This
cou
ld cause unexpected machine or process operation which could result in death or serious
injury to personnel and/or damage to equipment. You must plan for this, especially if you are
using devices which respond to short duration pulses.