Computer Drive Installation Instructions

09.95 7 Drive Machine Data (SIMODRIVE Drive MD)

7.3.2 Drive MD (data description)

Machine data which correspond to this machine data are as follows:

• Signal number variable message function (MD 1621)

• Address variable message function (MD 1622)

• Threshold variable message function (MD 1623)

• Hysteresis variable message function (MD 1624)

• Pickup delay variable message function (MD 1625)

• Delayed dropout variable message function (MD 1626)

Note:

Changes to inputs in machine data MD 1621 to MD 1624 while the monitoring function is

already active (MD 1620 - bit 0 = 1) do not automatically result in re-initialization, i.e. reset to

zero, of message bit 5. If a bit reset is required, the monitoring function must be deactivated

and then re-activated by means of MD 1620, bit 0, after the machine data has been altered.

Signal number variable message function

1621

Default value Lower input limit Upper input limit Units

0 0 100 –

Active

at once

Input of signal number of memory location to be monitored via the variable message function.

SINUMERIK 840C (IA)