Parameter description
vacon • 40
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4
4.
P
ARAMETER
DESCRIPTION
Due to its user-friendliness and simplicity of use, the most parameters only require a basic de-
scription which is given in the parameter tables in chapter 2.2. In this chapter, you will find ad-
ditional information on certain more advanced parameters. Should you not find the information
you need contact your distributor.
4.1
Basic Parameters
P1.1 M
IN
FREQUENCY
Minimum frequency reference.
NOTE:
When drive is fed by solar power, if available power is not sufficient to maintain dc volt-
age above the minimum and frequency above the minimum, the drive will be stopped.
NOTE
: if motor current limit is reached, actual output frequency might be lower than this pa-
rameter. If this is not acceptable, stall protection should be activated.
P1.2 M
AX
FREQUENCY
Maximum frequency reference.
P1.3 A
CCELERATION
TIME
Ramp time, referred to variation from zero frequency to max frequency.
A specific acceleration time from zero to minimum frequency is available (P2.9).
Normal acceleration time (P1.3) is active only in case power is from mains supply.
P1.4 D
ECELERATION
TIME
Ramp time, referred to variation from max frequency to zero.
Normal deceleration time (P1.4) is active in mains supply and in case the external frequency
reference is lowered below the reference of maximum power. It is also active when start com-
mand falls and ramping stop is programmed (stop mode is anyway by coasting, when the out-
put frequency is below minimum).
Specific acceleration and deceleration time are used during power regulation. They are avail-
able as parameters in MPPT group, but it is suggested not to change them, unless needed be-
cause of stability issues.
P1.5 C
URRENT
LIMIT
This parameter determines the maximum motor current from the AC drive. The parameter
value range differs from size to size. When the current limit is active the drive output frequency
is decreased.
NOTE:
This is not an overcurrent trip limit.
P1.11 C
ONTROL
PLACE
Run and direction control. A second control place is programmable in P2.14.
0: I/O terminals
1: Keypad
2: Fieldbus
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