FM26001c_e.doc / Nov-11
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7. Clarification of Command Functions
Nr.
Command
Description
Assignment
Keys
Cont. input
0
no function
The corresponding key or the corresponding control input
will not activate any command
yes
yes
1
Send Data
Starts a serial data transmission (see 6.2.6 Serial
Protocol) where the transmit value is determined by
"Register Code".
yes
yes
2
Disable Output
Inhibits all output function, i.e. the output frequency is
zero while this command is on
yes
yes
3
Freeze Output
Freezes the actual output frequency, i.e. the frequency
will be constant and no more follow the input frequency
yes
yes
4
Direction
Changes the direction of the output frequency, i.e. the
phase situation A / B will be inverted
yes
yes
5
Reference Z
Sets the internal marker pulse generator and related
counters to zero. No marker pulse will appear at the
output while this command is active.
yes
yes
6
Reset
Resets the actual conversion error to zero, clears the
"Overflow" message and inhibits the frequency output
(i.e. output frequency is zero)
yes
yes
7
Trim - *)
Generates a differential frequency f
diff
that is subtracted
from the regular output frequency, i.e. the number of
output pulses will be temporary scaled down by
f
diff
= 1/ Trim Time,
yes
yes
8
Trim + *)
Generates a differential frequency f
diff
that is added to
the regular output frequency, i.e. the number of output
pulses will be temporary scaled up by
f
diff
= 1/ Trim Time,
yes
yes
9
Hardware keypad
interlock
See chapter 5.2
no
yes
*)
Trim functions can e.g. be used in position-related applications where it may be necessary to
temporary shift the output count with regard to the input count (e.g. to adapt the relative position
of a product to the process).
