format
Advanced
parameter
descriptions
Serial comms
2.9
Keypad
control
mode
The drive can be controlled from the keypad if Pr
1.14
(
SE05,
0.26
) is set
to 4. The Stop and Run keys automatically become active (the Reverse
key may be optionally enabled with Pr
6.13
). The speed reference is
defined by Pr
1.17
. This is a read only parameter that can only be
adjusted in status mode by pressing the Up or Down keys. If keypad
control mode is selected, then pressing the Up or Down keys in status
mode will cause the drive to automatically display the keypad reference
and adjust it in the relevant direction. This can be done whether the drive
is disabled or running. If the Up or Down keys are held the rate of
change of keypad reference increases with time.
2.10
Drive
reset
A drive reset is required to: reset the drive from a trip (except some
“Hfxx” trips which cannot be reset); and other functions as defined in
Chapter 3 Parameter x.00 on page 15. A reset can be performed in four
ways:
1.
Stop key: If the drive has been set up such that the stop key is not
operative then the key has a drive reset function only. When the stop
function of the stop key is enabled, a reset is initiated while the drive
is running by holding the Run key and then pressing the Stop key.
When the drive is not running the Stop key will always reset the
drive.
2.
The drive resets after a 0 to 1 transition of the drive reset parameter
(Pr
10.33
). A digital input can be programmed to change this
parameter.
3.
Serial comms, fieldbus or applications Solutions Module: Drive reset
is triggered by a value of 100 being written to the User trip parameter
(Pr
10.38
).
If the drive trips EEF (internal EEPROM error) then it is not possible to
reset the drive using the normal reset methods described above. 1233 or
1244 must be entered into Pr
x.00
before the drive can be reset. Default
parameters are loaded after an EEF trip, and so the parameters should
be reprogrammed as required and saved in EEPROM.
If the drive is reset after a trip from any source other than the Stop key,
the drive restarts immediately, if:
1.
A non-latching sequencer is used with the enable active and one of
run forward, run reverse or run active
2.
A latching sequencer is used if the enable and stop\ are active and
one of run forward, run reverse or run is active.
If the drive is reset with the Stop key the drive does not restart until a not
active to active edge occurs on run forward, run reverse or run.
2.11
Second
motor
parameters
An alternative set of motor parameters are held in menu 21 which can be
selected by Pr
11.45
. When the alternative parameter set is being used
by the drive the decimal point after the right hand digit in the 1st row is
on.
2.12
Special
display
functions
The following special display functions are used.
1.
If the second motor map is being used the decimal point second
from the right of the first row is on.
2.
When parameters are saved to a SMARTCARD the right-most
decimal point on the first row flashes for 2 seconds.
During power up one or more of the following actions may be required.
Each action may take several seconds, and so special display strings
14
Mentor MP Advanced User Guide
www.onxcontrol.com
Issue Number: 4
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