Module group 5, slot 0 reserved for micro-inch, Module groups 6 and 7 reserved for data storage, 4ć13 – Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual
Page 36
PC Ladder Programming
Chapter 4
4Ć13
Important: Use module group 5, slot 0 only if your mechanical power
press is equipped for micro-inch.
When you insert an input module (1771-IA) into this slot of chassis A and
B, the processor recognizes micro-inch inputs at terminals 0, 1, 2. For the
wiring of these terminals refer to chapter 6, Figure 6.4 or
Figure 6.8.
Module group 6 is non-functional and reserved for future use.
Your program must use the output image table word associated with
module group 7 as a storage word for configuring your clutch/brake
modules (Figure 4.9). The processor transmits configuration data to the
clutch/brake modules in each I/O scan.
CAUTION: Do not assign any I/O module to module group 7
of the rack address assigned to chassis A and B. Unexpected
press operation will occur with possible damage to equipment
and/or injury to personnel. However, you may install a slot
power supply in module group 7, if needed.
Important: Be sure to assign full rack addresses for chassis A and B,
regardless of whether you are using the optional dump valve and/or
micro-inch circuit. This guards against assigning an I/O module to
module group 7.
Refer to Rack Address of Chassis A and B, in chapter 3, for instructions
on assigning rack addresses.
Your PLC ladder program cannot control outputs of your clutch/brake
controller. However, your PLC ladder program can monitor any
clutch/brake controller input or output because the I/O image table of
chassis A and B is in the PLC data table.
Input image table bit addresses for chassis A and B are listed in tables A
thru F in appendix 1. You may monitor these addresses. However, do not
examine them as conditions for configuration rungs shown in Figures 4.3
through Figure 4.5. If you do, PM modules may stop the press. Then
you must cycle power to restart.
Module Group 5, Slot 0
Reserved for MicroĆInch
Module Groups 6 and 7
Reserved for Data Storage
Monitoring Clutch/Brake
Controller Inputs and Outputs