GE IC693CHS398F Base Unit | 5 Slots, Series 90-30

This base unit provides mechanical support and backplane connections for Series 90-30 modules. It houses up to five modules in a single compact chassis. You can mount this unit directly on a DIN rail or panel. The base unit simplifies system assembly by pre-wiring backplane power and signals.

Technical Specifications & Key Parameters

Parameter	Detail
Product Model	GE IC693CHS398F
Category	5 Slot Base Unit (PLC Chassis)
Dimensions (H x W x D)	140 mm x 305 mm x 140 mm
Weight	1.2 kg (2.65 lbs)
Number of Slots	5 module slots
Supported Modules	Series 90-30 CPU, power supply, I/O, and communication modules
Backplane Current Rating	2.5 A at 5V DC, 1.0 A at 24V DC
Slot 1 (CPU position)	Dedicated CPU slot with priority backplane access
Slots 2-5	General purpose I/O and communication slots
Energy Storage	None (passive backplane, no active components)
Power Distribution	Internal bus bars for 5V DC and 24V DC
Mounting Method	Standard 35 mm DIN rail or four M4 screws
Terminal Type	None (modules connect directly to backplane)
Grounding Point	One M4 grounding stud
Wire Size for Field	Not applicable (field wiring connects to individual modules)

Detailed Feature Overview

GE IC693CHS398F accepts up to five Series 90-30 modules in a single chassis. Slot 1 handles the CPU module with priority backplane access. Slots 2 through 5 accept any mix of I/O or communication modules. This design allows flexible system configuration for small to medium applications. The base unit distributes 5V DC and 24V DC power via internal bus bars.

The passive backplane contains no active electronic components. This design ensures long-term reliability without component failures. Each module draws its power directly from the bus bars. The chassis supports up to 2.5 A at 5V DC for logic circuits. It also provides 1.0 A at 24V DC for field I/O power.

Installation and Mounting Options

Mount the base unit on standard 35 mm DIN rail for quick installation. Alternatively, use four M4 screws for panel mounting in high-vibration environments. The unit weighs 1.2 kg, providing stable support for five fully loaded modules. An M4 grounding stud connects to the cabinet earth bus bar. This connection ensures proper noise immunity for sensitive analog modules.

Module Installation and Expansion

Insert modules into any slot from left to right starting with the CPU. Each module locks securely with top and bottom retaining clips. You can replace individual modules without removing the entire base unit. Expansion cables connect to additional base units for larger systems. Operating temperature ranges from 0°C to 60°C reliably. Keep humidity below 95% without condensation for long life.