Verify any configuration containing a higher number of electronic modules (up to 32), or an
EM 4 DO 17.4 VDC/40mA, with the help of the calculation table (see below).
Calculation table
With the calculation table, you can check the operational current consumption of the ET 200iSP.
Note
ET 200iSP always conforms with safety-relevant current consumption limits (limit value < 15
A, see EC Prototype Test Certification KEMA 04ATEX2242). With all configurations, the
number of modules is restricted only by the effective current output (refer to following table)
or the maximum number of modules (32).
Structure
Power supply
Maximum operational current
output
Normal operation
PS 24 VDC
1
5A
PS 120/230 VAC
2
Redundancy
PS 24 VDC
1
PS 24 VDC
1
PS 120/230 VAC
2
PS 120/230 VAC
2
PS 24 VDC
3
PS 120/230 VAC
2
1
Product version 3 and higher:
2
Maximum effective current output 5A at 170 VAC to 264 VAC (up to 60°C) or at 85 VAC to 132 VAC
(up to 50°C). Refer to technical specifications in the section Power Supply PS 120/230 VAC .
3
Product version 5 and higher:
Procedure
Check the operational current consumption of your ET 200iSP configuration. The limit value
specified in the table column
=operational current consumption in mA must not be exceeded.
1. Multiply the operational current per module by the number of modules, then enter the values
in the
= operational current consumption in mA column.
2. Add all modules and enter the value in the
Total Modules box (maximum of 32 electronic
modules).
3. Add the operational current consumption and enter the value in the
Total Current
Consumption box.
4. Compare the calculated totals with the specified limits.
Table 3-4
Calculation table for current output
Electronic modules
x Number
of modules
Operational cur‐
rent per module
in mA
= Operational current
consumption in mA
Power supply PS 24 VDC/
PS 120/230 VAC
x
15 mA
=
IM 152
x
30 mA
=
8 DI NAMUR
x
80 mA
=
Configuration options
3.6 Restricted Number of Connectable Electronics Modules
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
53