New ABB 07 DO 90-S GJR5250800R202 | 24V DC 0.5A Transistor Output

Product Overview

The 07 DO 90-S (GJR5250800R202) is a safety-critical Binary Output Module manufactured by ABB as part of the Advant Controller 31 Safety System (AC31-S). Engineered for fail-safe automation, this module features 8 electrically isolated channels operating at 24V DC nominal voltage. Delivering up to 0.5A load current per channel and a maximum total module current of 4A, it provides dependable control for safety actuators, contactors, and solenoids. The module incorporates electronic short-circuit protection, inductive interrupt voltage limiting via integrated clamping diodes, and active 0-signal voltage monitoring. Housed in a durable industrial enclosure measuring 120 x 140 x 85 mm with a physical hardware net weight of 400 g (0.88 lbs), the 07 DO 90-S guarantees high operational safety across critical process control applications.

As illustrated in the product image, the unit features a sturdy DIN-rail mount chassis with accessible terminal blocks, diagnostic status LEDs, and clear pinout schematics on the front cover.

Core Technical Advantages

• Fail-Safe 0-Signal Level Monitoring: Continuously monitors off-state voltage levels; if a channel exceeds 8V while in state 0, the module automatically shuts down and trips a safety fault.
• Integrated Inductive Load Limiting: Features built-in freewheeling diodes to suppress inductive kickback voltage spikes up to a 0.5 Hz switching frequency.
• High-Level Electrical Isolation: Provides 800V DC isolation to the internal system bus and 500V DC isolation to the field output circuits for superior noise immunity.
• Rugged Cable Distance Support: Supports long-distance field wiring runs up to 1000 meters with shielded cabling or 600 meters with unshielded cabling.

Technical Specifications

Installation & Field Maintenance Guidelines

Mount the 07 DO 90-S onto standard DIN rail. Connect 24V DC process voltage (UP) and supply voltage (L+) per VDE551 standards. Wire field outputs using conductors up to 2.5 mm² and torque screws to 0.5 Nm max. Ensure supply voltage ramps to 19V within 40ms of power-up.

Technical FAQs

Q: What is the channel output capacity?
A: Provides 8 channels rated at 0.5A per channel with a 4A total module limit.

Q: How does the short-circuit protection work?
A: Features electronic short-circuit protection and shuts down if 0-signal voltage exceeds 8V.

Q: What are the isolation and weight specs?
A: 800V DC bus isolation, 500V DC output isolation, and a net weight of 400g.