CTI 2591-EF 16-Point Isolated 11-146 VDC Output with Front Panel Accessible Fuses
2591-EF 16-Point Isolated 11-146 VDC Output with Front Panel Accessible Fuses
The 2591-EF 16-point discrete output module provides sixteen isolated outputs from the CTI 2500 Series® or Simatic® 505 I/O base with front panel accessible fuses.
Features
Supports sourcing and sinking applications
Front panel accessible fuses for easier maintenance
1.5 Amps per output with no-derating
1500V channel-to-channel isolation
Outputs individually fused
Blown fuse indicator
Blown fuse reporting to the PLC
2590-EF / 2591-EF 16-Point
Isolated Discrete Output Modules
with External Front Panel Accessed Fuses
Description
The 2590-EF and 2591-EF 16-Point
Discrete Output Modules provide sixteen
isolated outputs from the CTI 2500
SeriesTM or Simatic® 505 I/O base with
front panel accessible fuses. The modules
use solid-state output circuits to switch on
or off external devices such as pilot lamps,
motor starters, or solenoids. The 2590-EF
is designed to switch externally supplied 20
to 132 VAC and the 2591-EF is designed to
switch externally supplied 11 to 146 VDC.
For both modules, the internal logic signals
are isolated from the external outputs to
1500 VDC.
Checking Module Operation
Fig 3. Typical Internal Circuit – 2590-EF
You must check to see that the module is configured in the memory of the PLC. This is important because the module will
appear to be functioning regardless of whether it is communicating with the PLC. To view the PLC I/O configuration chart
listing all slots on the base and the inputs or outputs associated with each slot, refer to your Programming Manual. An
example chart is shown in Figure 7.
2590/91-EF Operation Without Blown Fuse Reporting
The 2590/91-EF standard shipping configuration logs in as 16Y locations to the PLC.
Features
•Supports sourcing and sinking applica
tions
•Front panel accessible fuses for easier
maintenance
•2A per output 2590-EF (no derating)
1.5 A per output 2591-EF (no derating)
•Blown fuse reporting directly to PLC for
each channel
•Logs in as 16Y or 16X/16Y (jumper
selectable)
• Isolated 1500 VDC channel-to-channel
2590-EF Specifications
Outputs: 16
Output voltage: 20 to 132 VAC
Output source current per circuit: 2.0A max
Minimum current: 40 mA per circuit
Non-repetitive surge current: 80 Amps (1 cycle)
“OFF” state leakage: 1 mA maximum @ 25°C
Turn ON or OFF time: 1 AC cycle
Total module output current: 32 Amps max
Fuses: 16. 3 Amp, 250 V, Type Littlefuse
#2173.15. Bussman GMA# GMA-3A,
CTI Part #80-65 (field replaceable)
Specifications 2591-EF
Outputs: 16
Output voltage: 11 to 146 VDC
Output source current per circuit: 1.5A max
Maximum surge current:3 Amps for 15 seconds
“ON” state voltage drop:0.3 V @ 1.5 Amps
“OFF” state leakage current:125 µA @ 146 VDC
Turn ON time:0.5 mSec (nominal)
Turn OFF time: 1.5 mSec (nominal)
Total module output current: 24 Amps max
Fuses: 16. 1.6 Amp, 250 V, Schurter #034.2518
CTI Part #80-79 (field replaceable)
Specifications Common to Both
Isolation: 1500 VDC channel-to-channel
1500 VDC channel-to-backplane
Connector: Removable
Wire gauge:14-22 AWG
Backplane power:2.5 watts max
Module size: Double wide
Blown fuse indication: Front panel LED (per
channel)
Blown fuse reporting:
Reported to PLC as X input per channel (jumper
selectable)
Operating temperature: 0° to 60°C (32° to
140°F)
Storage temperature:-40° to 85°C (-40° to
185°F)
Humidity, relative:5% to 95% (non-condensing)
Agency approvals: UL, UL Canada, FM (Class,