CTI 2598-8 8-Point AC Discrete Output Module

Description

The 2598 8/16-Point AC Discrete Output Module

provides eight outputs  isolated in groups of 2 from

CTI 2500 Series® or Simatic® 505 I/O bases. The

module utilizes solid-state output circuits  to switch on

or off external devices such as pilot lamps, motor

starters, or solenoids. The 2598-8 is designed to

switch externally supplied 11 to 240 VAC. The internal

logic signals are isolated from the external outputs to

2100 VDC.

Features

• 8 AC output points

• Replaces Siemens® 505-4608. and -4808.

• 3000 VDC group-to-group isolation

• 2100 VDC channel-to-backplane isolation

• Isolation in groups of two

• Wide 11-240 VAC output range

• 2.0 Amps per output

• 16 Amps total module output

• Individually fused outputs

• Sourcing outputs

• Single-wide module

Specifications

Outputs per Module: 8

Isolation:

2100 VDC channel-to-backplane

3000 VDC group-to-group

Output Voltage: 11 VAC to 240 VAC

Maximum Output Current:

2.0 Amps max.,

4A per group

16A per module

For Class 1 Div 2 locations:

2A per point @50°C

1.5A per point @ 60°C

Maximum Surge Current: 3 Amps for 15 Sec

“ON” State Voltage Drop: 1.0V @ 1.0 Amp

“OFF” State Leakage Current: 1mA

Turn  On Time: 1 AC cycle

Turn  Off Time: 1 AC cycle

Fuses:

16. 2.5 amp, 250V, Type: Littlefuse #21602.5.

Bussman GDA-2.5 (Field replaceable)

Connector: Removable Part# 2500-40F

Note: The connector is ordered separately.

Wire Gauge: 14 - 22 AWG

Backplane Power: 1.25  Watts max.

Module Size:  Single-wide

Shipping Weight: 1.5 lb. (0.68 Kg)

Channel Configuration Explanation

The 2598-8 was designed using a PCB that could also perform as a 16 or 32pt module.

Hence, the PCB printing for channels do not line up with actual 2598-8 channels.

See chart below for the proper correlation of channels.

For example, if the module reported channel 4 was blown, then the user would replace

the fuse marked ‘CH 10’ on the PCB.

Grouping Configuration

The 2598-8 is shipped to allow two channels to be grouped and share a common field

user power, thereby allowing a different user power supply voltage to be used by each

grouping. Jumpers J2. J4. J6. and J8 come set in the “8 common” selection from the

factory and should not be altered for proper module operaton. This setting allows for 

2 points per common operation.

For example, Channels 1-2 will share a common user power and Channels 3-4 will share

another common user power. In this example each group of two channels is isolated

from the other group of two channels. Be-cause each group of two is isolated,

the user may also change the supply voltage for each group.

So, in this example, Chan- nels 1-2 could be 240VAC outputs and Channels 3-4 could

be 120VAC outputs.