Siemens Simatic S7-400 - Manual (Page 109)

Power Supply Modules
3-29
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Polarity Reversal of L+ and L-
The polarity reversal of L+ and L- with supply voltages of between 88 VDC
and 300 VDC has no effect on the function of the power supply. The connection
should be made as described in the instructions in the Installation Manual,
Chapter 6.
Technical Specifications of the PS 407 20 A
Dimensions, Weight, and Cable Cross-Sections
Dimensions WxHxD (mm)
Weight
Cable cross-section
75x290x217
2.2 kg
3x1.5 mm 2 (litz wire
ith ire end ferr le with wire end ferrule
with insulating collar;
use only flexible
sheath cable)
Cable diameter 3 to 9 mm
Input Rating
Input voltage
•
Rated value
•
Permitted range
110/230 VDC
120/230 VAC
88 to 300 VDC,
85 to 264 VAC
(long-range input)
System frequency
•
Rated value
•
Permitted range
50 / 60 Hz
47 to 63 Hz
Rated input current
•
At 120 VAC / 110 VDC
•
At 230 VAC / 230 VDC
1.5 A
0.8 A
Starting current inrush Peak value 88 A
half-value width 1.1 ms
Leakage current < 3.5 mA
Overvoltage resistance In accordance with DIN
VDE 0160, curve W2
Output Rating
Output voltages
•
Rated values 5.1 VDC /24 VDC
Output currents
•
Rated values 5 VDC: 20 A
24 VDC: 1.0 A
Max. residual ripple 5 VDC: 50 mV
SS
24 VDC: 200 mV
SS
Max. switching peaks 5 VDC: 150 mV
S
24 VDC: 500 mV
S
Idle conditions 5 VDC: 200 mA base
load required
24 VDC: Idling-proof
(no base load required)
Other Parameters
Protection class in accordance
with IEC 60536 I, with protective
grounding conductor
Overvoltage category II
Pollution severity 2
Rated voltage U
e
0 < U
e
≤ 50 V
150 V < U
e
≤ 300 V
Test Voltage
700 VDC
(secondary <–> PE)
2300 VDC
(primary <–> PE)
Buffering of power failures: > 20 ms
Complies with the
NAMUR
recommendation NE
21 of August 1998 at a
repeat rate of 1 s
Power input 168 W
Power loss 44 W
Backup current Max. 100 µ A at power
off
Backup batteries (optional) 2 x Lithium AA,
3.6 V / 1.9 Ah
Protective separation
to IEC 61131-2 Yes