Mitsubishi Electric NZ2GFSS2 16DTE S1 User Manual

108
8 FUNCTIONS
8.5 Protection Functions
8.5 Protection Functions
The following table lists the protection functions.
The following table lists the modules each protection function can protect.
: Available, : Not available
• The protection functions are intended to protect the internal circuit of a module, not to protect external
devices.
• An overload (overvoltage or overcurrent) may cause the internal temperature of the module to rise, resulting
in deterioration in output elements and discoloration on the case and the printed-circuit board. When an
abnormal load is found, turn off the corresponding output immediately and eliminate the cause.
Function name Purpose Description
Module power supply overvoltage
protection
Prevents ignition or burnouts from/of the safety remote I/O
module due to overvoltage on the primary side.
This function operates when the module power supply is in
the overvoltage state.
Module power supply overcurrent
protection
Prevents ignition or burnouts from/of the safety remote I/O
module due to overcurrent on the primary side.
This function operates when the module power supply is in
the overcurrent state.
External power supply
overvoltage protection
Prevents ignition or burnouts from/of the safety remote I/O
module and load circuits due to overvoltage.
This function operates when the external power supply
circuit is in the overvoltage state.
External power supply
overcurrent protection
Prevents ignition or burnouts from/of the safety remote I/O
module and load circuits due to overcurrent.
This function operates when the external power supply
circuit is in the overcurrent state.
Output overload protection Prevents ignition or burnouts from/of the safety remote I/O
module due to overcurrent or overheat resulting from short-
circuits of the output circuit.
This function operates when a current exceeding the rating
flows. The safety remote I/O module recovers by resetting it
in the rated load state.
Function name Protection target
NZ2GFSS2-32D-
S1
NZ2GFSS2-8D-S1 NZ2GFSS2-8TE-
S1
NZ2GFSS2-
16DTE-S1
NZ2EXSS2-8TE
Module power supply overvoltage
protection

Module power supply overcurrent
protection

External power supply
overvoltage protection

External power supply
overcurrent protection

Output overload protection 

Mitsubishi Electric NZ2GFSS2 16DTE S1 Specifications

General

Brand	Mitsubishi Electric
Model	NZ2GFSS2 16DTE S1
Category	I/O Systems
Language	English