CTI  2550-A 8-Channel Isolated Analog Input Module

2550-A 8-Channel Isolated Analog Input Module

The 2550-A is a high-speed 8-channel isolated analog input module designed to be compatible with the 2500 Series® I/O base. The 2550-A translates analog input signals into an equivalent digital word.

Features

Fast 4 mSec update time for all 8 channels

Isolated 1500V channel-to-PLC-backplane

Isolated 1500V channel-to-channel

No external power supply required for module

No external current resistor required

On-board calculations for 4-20 mA offset inputs

The 2550-A is a high-speed 8-channel isolated

analog input module designed to be compatible with

the CTI 2500 Series and Simatic® 505 base . The

2550-A translates analog input signals into an

equivalent digital word.

Features

• 1500V channel-to-channel isloation

• 1500V channel-PLC backplane isolation

Specifications

Input Channels:

Classic

8 isolated analog input channels

Isolation:  1500VDC Channel-to-channel  and

1500 VDC channel-to-PLC

Signal Range:

Unipolar: 0 to 5VDC,  0 to 10VDC  or 0 to 20mA

Bipolar: -5 to  +5VDC, -10 to +10VDC or  -20  to + 20mA

Update Time

8 WX mode: 4mSec all channels

Digital Filtering Time Constant:  0.3Sec

DC Input Resistance:

Voltage mode: 1MW

Current mode: 250W

Repeatability:  0.05%

Accuracy:

Voltage mode: 0.1% of full scale from 0-60oC

Current mode: 0.2% of full scale from 0-60oC

Resolution 8WX Mode:

Unipolar 12 bits pls sign:

0-5VDC range = 1.25 mV/step

0-10VDC range = 2.5 mV/step

0-20mA = 5µA/step

Bipolar 11 bits pls sign: -5 to +5VDC range = 2.5 mV/step -10 to +10VDC range = 5 mV/step -20 to +20mA = 10µA/step

Common Mode Rejection:

>140db @ 60Hz

Normal Mode Rejection:

>40db @ 60Hz

Connector: standard CTI 2500-40F 40-position

removeable connector, 14-22 AWG

Backplane Power:  6 Watts (maximum)

Module Size:: Single-wide

Input  ESD Protection:  20.000V

Overrange Protection:  500V

Shipping Weight:  1.5 lb. (0.68 Kg)

• Fast 4ms update time for all channels

• External isolators not required

• No external power supply required for the

module

• On-board calculations for 4-20mA offset inputs

• Single-wide module