HIMA H4012 Digital Input Module

Short Description:

HIMA H4012 is a digital input (DI) module in the H41q series safety control system produced by HIMA, Germany. As a crucial component of HIMA’s early classic safety control systems, this module is specifically designed for Safety Instrumented Systems (SIS) and Emergency Shutdown Systems (ESD), and is used to reliably collect switch signals from hazardous areas. The core function of HIMA H4012 is to connect field passive dry contact devices, such as emergency stop buttons, pressure switches, level switches, temperature switches, and position sensors.

FOB Price: US $0.5 - 9,999 / Piece

Min.Order Quantity: 100 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Month

Brand: HIMA

Manager: Jinny

E-mail: sales5@xrjdcs.com

Tel: + 86-15359273791

( WhatsApp )Wechat: + 86-15359273791

Warranty: one year

In stock: In stock

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Product Detail

Product Tags

HIMA H4012

Product Parameters

Product Model: H4012
Manufacturer: HIMA
Product Type: Digital Input Module (for H41q System)
Number of Input Channels: 16 channels
Input Type: Dry contact (passive contact signal)
Rated Voltage: 24V DC (powered by internal or external module for loop detection)
Response Time: ≤ 20 ms
Diagnostic Function: Loop monitoring (optional)
Isolation: Photoelectric isolation between channels and system bus
Connection Method: Screw terminal block (front connector)
Power Consumption: Typical 1.5 W
Operating Temperature: -20°C to +60°C
Installation Method: Inserted into HIMA H70xx series system rack

Structure and Composition

The HIMA H4012 module adopts the standard modular structure of the H41q series and is equipped with a robust metal housing to ensure excellent mechanical strength and electromagnetic compatibility (EMC). The front end of the module is fitted with a detachable screw terminal block front connector, which is used for efficient connection of 16 channels of field signal lines. Its internal circuit board is the core of the module, integrating independent signal conditioning circuits, photoelectric isolators, and status monitoring circuits for each channel. Each group of input channels includes a signal conditioning loop to detect the on-off status (open or closed circuit) of field dry contacts. The photoelectric isolator achieves electrical isolation between the field side and the internal system bus side, effectively preventing field interference from entering the system bus and ensuring the stability and safety of system operation. Status data of all channels is transmitted to the central processing unit (CPU) via the parallel safety bus of the H41q system through the gold-plated backplane connector at the bottom of the module.

Installation and Maintenance

Pre-Installation Preparation

Before installing the HIMA H4012 module, it is essential to ensure that the power supply of the entire H41q system rack is completely turned off. Verify that the module model is compatible with the rack slot. Check whether the wiring of the front connector is correct and secure. Field signal lines should use shielded cables and be grounded at a single point on the control cabinet side to prevent interference.

Maintenance Recommendations

Daily maintenance mainly includes regularly checking the LED status indicators on the front of the module to ensure that their displays are consistent with the status of field devices. Regularly inspect and fasten the terminal blocks on the front connector to prevent loosening due to vibration. Keep the module and rack clean, and regularly remove dust with a soft brush. If a channel fault is suspected, a multimeter can be used first to measure the on-off status of the field contacts to rule out external problems. When replacing the module, ensure that the system is powered off, and confirm that the hardware version of the new module is compatible with the original system.

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Sales Manager : Jinny
Email : sales5@xrjdcs.com
Whatsapp/Mobile:+86 15359273791

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