10
FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply
Publication
1797-5.33 - December 2003
6.
Replace the lid of the EEx “e” terminal box.
7.
Screw the lid back into place making sure all of the screws are tight.
Customer Connections
Typical Wiring Configurations
Vin
Vout
chassis GND
IS Isolation
Hazardous to IS
-V
+V
Out 1
-V
+V Out 2
-V
+V Out 3
41315
IS Limiters
Voltage and Current
-V
+V
Out 4
ac
Type of Power Input
IS Power Output
1
4
10
11
12
13
14
15
16
17
Daisy-chaining
+V, -V
You can use the daisy chain configuration if the
total module power draw is < 8.5W. Otherwise,
power is connected to individual modules.
Combination
Wiring when total module current
power is greater than 8.5W
41316
<8.5W
+V, -V
Other variations are possible depending
upon individual module power.
<8.5W
+V, -V
1797-PS1E
Hazardous
incoming
power
IS safe
output power
Keep wires separate