ABB ACS880 Series, Firmware Manual

Page: 99 / 764

90.7 in the drive. The same value should then appear in the PLC after having been
read from the drive.
Settings and diagnostics
Parameter groups 90 Feedback selection (page 565) , 91 Encoder module
settings (page 576) , 92 Encoder 1 configuration (page 580) and 93 Encoder 2
configuration (page 587) .
￭ Jogging
The jogging function enables the use of a momentary switch to briefly rotate the
motor. The jogging function is typically used during servicing or commissioning
to control the machinery locally.
Two jogging functions (1 and 2) are available, each with their own activation sources
and references. The signal sources are selected by parameters
20.26 and 20.27 .
When jogging is activated, the drive starts and accelerates to the defined jogging
speed (
22.42 or 22.43 ) along the defined jogging acceleration ramp ( 23.20 ). After
the activation signal switches off, the drive decelerates to a stop along the defined
jogging deceleration ramp (
23.21 ).
The figure and table below provide an example of how the drive operates during
jogging. In the example, the ramp stop mode is used (see parameter
21.3 ).
• Jog cmd = State of source set by parameter 20.26 or 20.27
• Jog enable = State of source set by parameter 20.25
• Start cmd = State of drive start command.
Jog cmd
Jog enable
Start cmd
Speed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
t
Description Start
cmd
Jog
en-
able
Jog
cmd
Phase
Program features 99