14
= Key1
= Key 2
= Key 3
= Max. value or consumption = Min. value or supply
Digital inputs
The UMG 505 has four digital inputs, to which signal
senders can be connected.
Digital Input 1
Digital Input 2 + 3
Digital Input 4
The inputs are separated by optical couplings and
have different electrical properties. Only input 1 can
operate with direct or alternating current voltage
signals. Input 4 can be used as pulse input for real
energy measurement as well.
Voltage version 2
For UMG's, which are driven with a supply voltage
of "15 .. 55VAC, 20 .. 80VDC" (Option), the
Digital
Input 1 can be activated with an
alternating current voltage
of 15 .. 55VAC or
direct current voltage
of 20 .. 80VDC .
Voltage version 3
For UMG's, which are driven with a supply voltage
of "40 .. 115AC, 55 .. 165VDC" (Option), the
Digital
Input 1 can be activated with an
alternating current voltage
of 40 .. 115VAC or
direct current voltage
of 55 .. 165VDC .
Diagr.: Digital Input 1 only for
alternating current
voltage.
17
16
Digital
Input 1
AC
UMG505
Digital inputs
85..265VAC
Diagr.
:
Digital Input 1 for
direct or alternating
current voltage.
17
16
Digital
Input 1
UMG505
Digital inputs
15k
AC/
DC
40..115VAC
55..165VDC
Digital Input 1
The operating voltage for
Digital Input 1 depends on
the allowed supply voltage of the UMG 505.
Voltage version 1
In the standard version, the UMG 505 is driven with
the supply voltage of "85 .. 265VAC, 120 ..
370VDC". In this case, the
Digital Input 1 is
activated with
alternating current voltage
of 85 ..
265VAC .
17
16
Digital
Input 1
UMG505
Digital inputs
6,8k
Diagr.
:
Digital Input 1 for
direct or alternating
current voltage.
AC/
DC
15..55VAC
20..80VDC
Input 1-4
5
4
3
Digital
Input 3
Digital
Input 2
5,1 k
5,1 k
17
16
Digital
Input 1
7
7
Digital
Input 4
ZMM 3V9
1,5 k
4k
UMG505
Digital inputs
Diagr.: Internal circuit of the digital inputs
.
