Connection Of Input/Output Modules - Iskra MC320 User Manual

PLEASE NOTE
Examples of connections are shown without input / output modules and communication.
Connection does not depend on a number of built‐in modules and communication, and is
shown on the device label.
Connection of input/output modules
WARNING!
Check the module features that are specified on the label, before connecting module
contacts. Wrong connection can cause damage or destruction of module and/or device.
PLEASE NOTE
Frequency of the tariff input voltage signal should not essentially deviate from the frequency
of the measuring input signal. At no signal on the measuring inputs the tariff triggering is
not reliable.
3 Connect module contacts as specified on the label. Examples of labels are given below and describe
modules built in the device. Information on electrical properties of modules is given in chapter
Modules on page 49.
16
Tariff input module with two tariff inputs for
changeover between up to four tariffs.
Tariff input module with two tariff inputs for
changeover between up to four tariffs.
S0 (pulse) output module with two pulse
outputs for energy counters.
Relay output module with two outputs.
(MC330, MC350, MC350H only)
Measuring centres – MC320, MC330, MC350 & MC350H ‐ User's Manual
CONNECTION
Connection 4u (3W4u)
Three phase, four wire
connection with unbalanced
load