MOVITRAC
®
31.. – FRS 31
15
Parameters
4
P 611 to 617
Binary outputs
The programmable binary outputs on terminals 62/63/64 can be allocated the following signals in
addition to the usual signal types:
• “FRS alert signal” (see P 550)
active low
• “FRS lag error” (see P 551)
active low
• “Slave in position” (see P 554 and P 556) active high
• “Zero speed”
active high
P 760
Synchronous Operation
Yes / No
(only with FRS 31A option package)
Setting (when unit disabled):
• on slave with FRS 31 option package:
set synchronous operation = “YES”
• on master with FEN 31 option pcb:
synchronous operation = “NO” and speed control (P 770) = “NO”:
normal V/f mode
synchronous operation = “NO” and speed control (P 770) = “YES”:
speed control mode
P 761
MOVITRAC
®
is master/slave
TThis parameter determines the role of the appropriate unit/drive. Terminals 98 to 101 of the unit
defined as the “SLAVE” must receive pulses from the pulse output on terminals 81 to 84 of the
master. The appropriate wiring must be taken into account (see terminal connection diagram and
application examples). Setting a unit as the “SLAVE” will automatically activate speed control
(P 770).
P 762
Gear ratio factor master
Value range = 1...3.999.999.999
P 763
Gear ratio factor slave
These two parameters determine the angular velocity ratio of the slave to the master.
The following factors for master and slave drives must be taken into account during the calcula-
tion:
• exact gear ratios. To just two decimal places in the SEW catalog.
• input transmission ratios
• pulley diameter (including twice the belt thickness)
The
ratio between P 763 / P 762
is therefore calculated as:
• In cases of the
same type of synchronized drives
with identical gear ratios (including input
transmission), the value of both parameters will be “1”.
• If the ratio between P 762 and P 763
with the same type of drive
is # 1, proportional operation
with an appropriate ratio can be selected. Examples:
P 763 = 101 / P 762 = 100
→
slave drive runs 1.01 times faster than the master.
P 763 = 5 / P 762 = 10
→
slave drive runs half as fast as the master.
P 763 = 4444 / P 762 = 2000
→
slave drive runs at 2.222 times the speed of the master.
• Where the
drives are of different types
(example: main drive and feed drive for flying saws), the
desired angular velocity ratio can be specified.
P 763
=
(i
gear
• i
input transmission
) slave • pulley diam
master
P 762
(i
gear
• i
input transmission
) slave • pulley diam
slave
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