WEG CFW08 Vector inverter User Manual page 75

DETAILED PARAMETER DESCRIPTION
Parameter
P120
Digital Reference
Backup
P121
Frequency
Reference by
key and
P122
JOG Reference
74
Range
[Factory Setting]
Unit Description / Notes
0...2 Defines if the inverter should save or not the last used digital
[ 1 - ativo ] reference. This backup function is only applicable to the keypad
- reference.
If the digital reference backup is inactive (P120=0), the reference
will be equal to the minimum frequency every time the inverter is
enabled, according to P133.
When P120=1, inverter saves automatically the digital reference
value, independent of the reference source, keypad, EP or serial).
P120=2, could be helpful when the reference is via EP and the
user do not want to start at the minimum frequency nor at the last
frequency. It is desirable to start at a fixed value, that should be
set in P121. After finishing the acceleration ramp the reference is
passed do EP again.
P133...P134
[ 3.00Hz ]
0.01Hz (<100.0);
0.1Hz (>99.99)
P133...P134
[ 5.00Hz ]
0.01Hz (<100.0);
0.1Hz (>99.99)
To operate JOG function works, the inverter must be disabled by
ramp (stopped motor). Thus if the control source is via terminal,
there must be at least one digital input programmed as start/stop
enabling (otherwise E24 will be displayed), which must be OFF to
enable the JOG function via digital input.
The direction of rotation is defined by parameter P231.
P120
0
1
Active, but always give by P121,
2
independently of the sorce reference
Defines the keypad reference value that can be set by using the
keys and when the parameters P002 or P005 are
being displayed.
The keys and
or P222=0 (in remote mode).The value of P121 is maintained at
the last set value, even when inverter is disabled or turned OFF,
provided P120=1 or 2 (backup active).
Defines the frequency reference (speed) for the JOG function.
The JOG function can be activated in several ways:
The key of the HMI-CFW08-P
The key of the HMI-CFW08-RS
DI3
DI4
Serial
Reference Backup
Inactive
Active
are enabled if P221=0 (in local mode)
P229=0 (local model) or
P230=0 (remote mode)
P229=2 (local model) or
P230=2 (remote mode)
P265=3 and P229=1 (local) or
P230=1 (remote)
P266=3 and P229=1 (local) or
P230=1 (remote)
P229=2 (local mode) or
P230=2 remote mode)