Chapter 12 Description of Parameter SettingsME300
12.1-00-9
1. Ramp to stop: the AC motor drive decelerates to 0 or the minimum output frequency (Pr.01-09)
according to
the set deceleration time, and then to stop (according to Pr.01-07).
2.
Coast to stop: the AC motor drive stops output immediately, and the motor coasts to
stop
according to
the load iner
tia.
Use “ramp to stop” for the safety of personnel, or to prevent material from being wasted
in
application
s where the motor must stop immediately after the drive stops. You must set t
he
deceleration
time accordingly.
If idling is allowed, or the load inertia is large, use “coast to stop”. For example,
blowers,
punching machines and
pumps.
3. Motor stops by simple positioning: use with the functions for Pr.12-20–12-35.
Control of Motor Direction
Default: 0
Settings
0: Enable forward / reverse
1: Disable r
everse
2: Disable fo
rward
Enables the AC motor drives to run in the forward and reverse direction. You can use it to prevent
a motor from running in a direction that would cause injury or damage to the equipment.
Digital Operator (Keypad) Frequency Command Memory
Default: Read Only
Settings
Read only
If the keypad is the frequency command source, when Lv or Fault occurs, this parameter stores
the current frequency command.
User-Defined Characteristics
Default: 0
Settings
bit 0–3: user-defined decimal places
0000b: no decimal place
0001b: one decimal place
0010b: two decimal places
0011b: three decimal places
bit 4–15: user-defined u
nit
000xh: Hz
001xh: rpm
002xh: %
003xh: kg
004xh: M/S
005xh: kW
006xh: HP
007xh: ppm
008xh: l/m
009xh: kg/s
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