Mitsubishi Electric LH42C4PT1P

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

LH42C4PT1P

Type

Digital I/O module

Application

I/O module

Used with

MELSEC-L CPU modules

Input type

DC input (positive/negative shared common type)

Number of input points

32 points

Rated input voltage

24 V DC (ripple ratio: within 5 %) (allowable voltage range: 20.4...28.8 V DC)

Rated input current

4.0 mA TYP. (24 V DC)

ON voltage/ON current

19 V DC or more/3 mA or more

OFF voltage/OFF current

9 V DC or less/1.7 mA or less

Input resistance

5.7 kΩ

Input response time, OFF to ON

1 ms, 5 ms, 10 ms, 20 ms, 70 ms or less

Input response time, ON to OFF

1 ms, 5 ms, 10 ms, 20 ms, 70 ms or less

Input common terminal arrangement

32 points/common

Output type

Transistor output (source type)

Number of output points

32 points

Rated load voltage

10.2...28.8 V DC

Maximum load current

0.1 A/point, 2 A/common

Maximum inrush current

Current is limited by the overload protection function.

Leakage current at OFF

0.1 mA or less

Maximum voltage drop at ON

0.1 V DC (TYP.) 0.1 A, 0.2 V DC (MAX.) 0.1 A

Output response time, OFF to ON

0.5 ms or less

Output response time, ON to OFF

1 ms or less (rated load, resistive load)

Surge suppressor

Zener diode

Fuse

None

Protection function, Overheat protection function

Available

Protection function, Overload protection function

Available

External power supply, Voltage

12/24 V DC (ripple ratio: within 5 %) (allowable voltage range: 10.2...28.8 V DC)

External power supply, Current

20 mA (at 24 V DC)/common

Technical documents (1)

• Mitsubishi Electric specification database, LH42C4PT1P

Key features

• Input type: DC input (positive/negative shared common type)
• Number of input points: 32 points
• Rated input current: 4.0 mA TYP. (24 V DC)
• ON voltage/ON current: 19 V DC or more/3 mA or more
• OFF voltage/OFF current: 9 V DC or less/1.7 mA or less

About the Mitsubishi Electric LH42C4PT1P

The Mitsubishi Electric LH42C4PT1P is a MELSEC-L I/O module. Mitsubishi Electric's overview: DC input: 32 points, 24 V DC, 4 mA, response time: 1/5/10/20/70 ms, 32 points/common, positive common/negative common shared type,; transistor output: 32 points, 12...24 V DC, 0.1 A/point, 2 A/common, response time: 1 ms, 32 points/common, source type, 40-pin connector x 2, number of occupied I/O points: 32 points. Mitsubishi Electric names the MXF100-H32P as its replacement model.

What is the LH42C4PT1P used for?

The LH42C4PT1P joins a MELSEC-L system beside the CPU, with no base unit, and connects field signals to it.

Lifecycle and successor

Phased out.

OEM successor: MXF100-H32P

Before you order

What to photograph or confirm so the right unit is quoted.

Check the model name LH42C4PT1P on the rating plate, with the serial number and function version. Send us a photo of the rating plate and we will confirm the details before quoting.