Lenze SCF frequency inverter - Manual (Page 43)

Lenze 13466146 EDBSF01 v24 EN
43
Commissioning 4
P15 SERIAL LINK
This parameter configures the drive for serial communications. The options are listed by baud rate,
number of data bits, parity, number of stop bits, and whether the watchdog timer is enabled or
disbabled.
The watchdog timer will stop the drive after 10 seconds of no serial activity to safeguard against a
failed serial link. During set-up or troubleshooting, it may be useful to disable the watchdog timer,
but is it not recommended to run normally without the watchdog timer.
WARNING!
Automatic starting of equipment may cause damage to equipment and/or injury to
personnel! Automatic start should only be used on equipment that is inaccessible to
personnel.
01 DISABLED: Disables the serial link
02 9600, 8, N, 2 - ENABLED WITH TIMER
03 9600, 8, N, 2 - ENABLED WITHOUT TIMER
04 9600, 8, E, 1 - ENABLED WITH TIMER
05 9600, 8, E, 1 - ENABLED WITHOUT TIMER
06 9600, 8, O, 1 - ENABLED WITH TIMER
07 9600, 8, O, 1 - ENABLED WITHOUT TIMER
P16 UNITS EDITING
This allows parameter and keypad speed editing in whole units or tenths of units above 100. Below
100, the value can always be changed by tenths of units.
01 TENTHS OF UNITS: The value can always be changed by tenths of units (up to a value of 1000).
If the
p
or
q
button is pressed and held, the value will change by tenths of units until the
next whole unit is reached, and then the value will change by whole units. Refer to Section
4.2.1.
02 WHOLE UNITS: The value can be changed by tenths of units until 99.9 is reached. Above 99.9,
the value will change in whole unit increments only. Below a value of 100, if the
p or q button
is pressed and held, the value will change by tenths of units until the next whole unit is reached,
and then the value will change by whole units.
P17 ROTATION DIRECTION
01 FORWARD ONLY: The drive will only allow rotation in the forward direction. However, JOG
REVERSE (see Parameter 11) will still operate even if FORWARD ONLY is selected.
02 FORWARD AND REVERSE: The drive will allow rotation in both directions.
P18 MOTOR OVERLOAD TYPE
01 SPEED COMPENSATION: reduces the allowable continuous current when
operating below 30Hz. (01 = the default value per UL508C requirements).
(Graph: Ir: rated current; f: motor frequency)
02 NO SPEED COMPENSATION: allows 100% of rated current at any speed. This
setting should only be used in applications where the motor is properly
cooled at all speeds or the motor manufacturer has approved the motor
for use at full load operation at low speed.
Ir
100%
60%
30 f
1
0