Lenze MC3000 Series Drives - Manual (Page 9)

RG-MCMET 6
N2 Points
4 MC3000 N2 Points
The entries in Table 3 are based upon MC3000 Drive Software Version 213-043 Revision 05 (Parameter
Version 143). If a later revision of software changed parameter definitions or added parameters it could
seriously affect the drive’s operation. This will be identified for a given drive by examining Analog Input
Point 1 (Parameter Version). If it is not 143, writing to any register on the drive MUST NOT BE ATTEMPTED
unless your Controller has been setup to support the new configuration.
NOTE
The Change of State (COS) feature as a means of alarm/warning notification on MC3000
Series Drives has not been implemeted. Upon being polled, the Analog Input points
that can change value will report that a change of state (COS) has occurred. However,
since the alarm limits that have been specified are ignored, the alarm and warning flags
will never be set. As this feature is not implemented, normal Metasys Alarm/Warning
Notification will be defeated. This is generally NOT an issue since none of the Analog
Input Points require alarm limits in standard operation.
If, for some reason, notification for alarms and warnings is required, it will be necessary for the operator
to perform the following:
• Map the specific object requiring COS to a CS object.
• Define an AD or BD object with the CS object of the required COS point as the “Associated In”.
• Assign Alarm Limits to the AD object.
• The AD or BD point will only be scanned at a minimum of 30 seconds
• The normal state of the BO must be updated (written to) by GPL.
Analog/Binary Input points that are mapped in directly that do not support COS will never report a change
of state condition. They will report the current value when read but no alarm notification will occur. A read
will only occur if a focus window is open or a feature requires the current value.
The MC3000 N2 Points are divided into four types: analog input, binary input, analog output and binary
output. Sections 4.2 through 4.5 describe each of these point types and the individual point numbers within
each.