Keypad Control Mode; Drive Reset; Second Motor Parameters; Special Display Functions - Emerson Mentor MP Advanced User's Manual

High performance dc drive 25a to 7400a, 480v to 690v
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Parameter structure
Keypad and display
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.
14
Parameter description

Parameter x.00

format
www.onxcontrol.com
Advanced parameter
descriptions
During power up one or more of the following actions may be required.
Each action may take several seconds, and so special display strings
are shown.
Display
Action
string
If a SMARTCARD is present with Pr 11.42 (SE09, 0.30) set
boot
to boot the parameters from the card must be transferred to
the drive EEPROM.
If the drive is in auto or boot mode Pr 11.42 (SE09, 0.30 set
card
to 3 or 4) the drive ensures that the data on the card is
consistent with the drive by writing to the card.
It may be necessary for a Solutions Module to transfer
parameter information from the drive. This is only carried out
loading
if the parameter information held by the Solutions Module is
for a different drive software version. The drive allows up to 5
seconds for this process.
nOAct
No Action
Serial comms
Performance
protocol
Mentor MP Advanced User Guide
Issue Number: 4

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