Calculating the power budget
To calculate the power budget, read the
available power (current rating) from the
Power Supply Specifications table and
subtract the power consumed by each
module to the right of the power supply.
Do not include modules to the right of an
additional power supply.
Power supplies
The Terminator I/O product line offers
two power supply options: AC or DC.
The power supplies are always positioned
to the left of the modules to which they
supply power. Consult the system configu-
ration examples and the power budgeting
example for more information on posi-
tioning power supplies.
This power supply powers these three I/O
modules
This power supply powers the network interface module and
the next two I/O modules
Power Supplies and Power Requirements
Power requirements
Power supply
specifications
Power Supply
Specifications
T1K-01AC
T1K-01DC
Input Voltage Range
110/220 VAC 12/24 VDC
Input Frequency
50/60 Hz
N/A
Maximum Power
50VA
30W
Max. Inrush Current
20A
10A
Insulation
Resistance
> 10M
q
@ 500 VDC
Voltage Withstand
1 min. @ 1500VAC between
primary, secondary and field
ground
5VDC
PWR
Voltage
5.25 VDC
5.25 VDC
Current Rating
2000 mA max
(see current
option note
below)
2000 mA max
Ripple
5% max.
5% max.
24VDC
PWR
Voltage
24VDC
N/A
Current Rating
300mA max.
(see current
option note
below)
N/A
Ripple
10% max.
N/A
Fuse
1 (primary), not replaceable
Replacement
Terminal Block
(Phoenix Contact)
MVSTBW
2.5/4-ST-5.08
BK
MVSTBW
2.5/6-ST-5.08
BK
Note: 500mA @ 24VDC can be achieved by lowering the
5VDC from 2000mA to 1500mA.
Power Budget Example
Module
5VDC
24VDC
T1K-01AC
+2000mA
+300mA
T1H-EBC100
-300mA
-0mA
T1K-16ND3
-70mA
-0mA
T1K-16TD2
-200mA
-0mA
T1F-08AD-1
-75mA
-50mA
Remaining
+1355mA
+250mA
Module
5VDC 24VDC
Analog Input Modules
T1F-08AD-1
75
50*
T1F-08AD-2
75
50*
T1F-16AD-1
75
50*
T1F-16AD-2
75
50*
T1F-16RTD
150
0
T1F-16TMST
150
0
T1F-14THM
60
70*
Analog Output Modules
T1F-08DA-1
75
150*
T1F-08DA-2
75
150*
T1F-16DA-1
75
150*
T1F-16DA-2
75
150*
Combination Analog Modules
T1F-8AD4DA-1
75
60*
T1F-8AD4DA-2
75
70*
* Use either internal or external source
for 24VDC
Module
5VDC 24VDC
DC Output Modules
T1H-08TDS
200
0
T1K-08TD1
100
200*
T1K-16TD1
200
400*
T1K-08TD2-1
200
0
T1K-16TD2-1
200
0
AC Output Modules
T1K-08TA
250
0
T1K-16TA
450
0
T1K-08TAS
300
0
Relay Output Modules
T1K-08TR
350
0
T1K-16TR
700
0
T1K-08TRS
400
0
Specialty Modules
T1H-CTRIO
400
0
* Use either internal or external source
for 24VDC
Module
5VDC 24VDC
Interface Modules
T1H-EBC100
300
0
T1H-PBC
530
0
T1K-DEVNETS
250
45
T1K-MODBUS
300
0
DC Input Modules
T1K-08ND3
35
0
T1K-16ND3
70
0
AC Input Modules
T1K-08NA-1
35
0
T1K-16NA-1
70
0
Adding additional
power supplies
Each power supply furnishes power only to
the network interface and I/O modules to
its right. Inserting a second power supply
closes the power loop for the power
supply to the left, while also powering
the modules to its right. Perform a power
budget calculation for each power supply
in the system.
tFED-55
Universal Field I/O
.
