Manual – MOVIPRO® SDC with DeviceNet Interface
99
10
Explanation of the parameters
Parameterization of MOVIPRO
®
P301/P311 Mini-
mum speed 1/2
Setting range: 0 – 15 – 6100 rpm
Speed value, the lower limit of which must not be exceeded even when zero is selected
as the setpoint. The minimum speed also applies when n
min
< n
start/stop
has been set.
Caution:
• If the hoist function is active, the slowest speed is 15 rpm even if n
min
has been set
to a lower value.
• To enable the drive to move clear of the limit switches even at low speeds, n
min
is not
active for the hardware limit switch with which the drive has come into contact.
P302/P312 Maxi-
mum speed 1/2
Setting range: 0 – 1500 – 6100 rpm
The value set here cannot be exceeded by a setpoint selection. If n
min
> n
max
is set, then
n
max
applies. The maximum speed depends on the set operating mode (page 109).
P303/P313 Cur-
rent limit 1/2
Setting range: 0 – 150 % I
N
The factory setting for the current limitation is set to 150 % I
N
of the matching motor.
The internal current limitation is based on the apparent current. In the field weakening
range, the current limit is reduced automatically above the frequency of 1.15 x f
base
(only
applies to V/f and VFC operating modes without speed control). This provides protection
against the motor deviating from the optimal operating point.
The current limit effective in the field weakening range can be calculated using the fol-
lowing formula:
Current limit = (1.15 × f
base
/ f
act
) × setting value of P303 / P313
f
act
is the current speed frequency.
P304 Torque limit
Setting range: 0 – 150 %
The parameter limits the maximum torque of the motor. The entry acts on the setpoint
of the motor torque (k
T
× I
N_inverter
). This function is only active in the operating modes
"CFC" and "Servo" of parameter
P700/P701 Operating mode 1/2
(page 109).
1
2
AUTO
1
2
AUTO
1
2
AUTO
1
2
AUTO
INFORMATION
In the "CFC" and "Servo" operating modes,
P303 Current limit 1
must always be set
≥
P304 Torque limit
to ensure that speed monitoring is triggered reliably.
0
0
I
