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Chordn EDMUC540 associated with CR1U series solid state relay allows to control and to make a diagnostic with one or more loads (maximum five loads in). It allows to detect open mains, open load or partial load break or a short-circuited SCR.
The module monitors continuously the load current by current transformer and compare with a preset current value. The instruction current value (teach current) is validated by the operator with the "TEACH" push button (placed in the front) or with the External teach input (Logic Input). If the load current is lower than -16% of teach current (0.84*Iteach), it means there is a partial load break.
Supply power: 8-30Vdc
Input control range: 4-32Vdc
External teach input range: 4-32Vdc
Diagnostic output range: 8-30Vdc 0.1A
Nominal current range: 2-40A
Max monitoring loads: 5
Alarm threshold: 0.84*Iteach
Diagnostic output mode: PNP/NPN
Connection control: Screw Pluggable
Current transformer hole diameter: 9mm
Conformity: IEC/ EN60947-4-3
Housing Material: PA66