Power source specifications, Input specifications – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual
Page 535

I/O Interface
Section 10A
10A-12
Power Source Specifications
Table 10A.F lists the power requirements for the push-button MTB panel
I/O module.
Table 10A.F
MTB Panel I/O Module Power Requirements
Item
Specifications
Rated Input Voltage
12 V dc
Input Voltage Range
11.5 - 13.2 V dc
Power Consumption
1.3A Typ., 2.6A Max.
External Connection
Terminal Block
Input Specifications
Table 10A.G lists the input specifications for the circuits that receive the
signals from the pushbuttons and the selector switches on the push-button
MTB panel.
Table 10A.G
Push-Button MTB Panel I/O Module Input Specifications
Item
Specifications
Remark
A-B MTB Panel
Custom MTB Panel
Number of Input Points
54
44
Total input signals from all switch groups
Modal Group
19
Discrete I/O
18
Rotary Input
8
Interconnect Group
6
Unused
3
All MTB Panels
Operating Voltage
ON
11.5 to 13.2 V dc
OFF
0-2V dc
Allowable Voltage Drop
Less than .5V dc
For External Device
Input Impedance
2.25 K ohms
Input Current at ON
5mA
With 12V dc Input
Leakage Current at OFF
Less than 1mA
Response
1-22 msec. Includes Digital Filter Time
OFF
®
ON, ON
®
OFF
Number of Common Points
6 (per 44 inputs)
Internally connected to Power Supply
Fuse
3A
Protects 12V Power Supply
Isolation
Non-Isolated type
Connection
60 Pin flat cable connector (CN51)
Max. Length 1m
10A.2.2
Push-Button MTB Panel I/O
Module Specifications