SEW MOVITRAC LTP series, Operating Instructions Manual

Page: 53 / 80

Operating Instructions – MOVITRAC® LTP
53
9
MODBUS Control
Software
9.1.6 Internal value
For some speed related parameters, the drive uses an internal value instead of the ac-
tual speed in Hz in order to increase the resolution. In order to set these speed related
parameters correctly, the internal value must be used instead of the display value.
Speed Internal = Speed in Hz x Factor
199 Control mode 0, 1, 2 0: Vector speed control
1: Vector torque control
2: V/f speed control –
200 Motor parameter auto-tune 0 or 1 – –
201 Speed controller P-gain 0 ... 4096 – –
202 Speed controller integral time
constant 0.001 ... 0.100 s – 1 = 0.001 s
203 Motor power factor 0.50 ... 0.99 – 78 = 0.78
204 Torque reference select 0 ... 3 0: Digital preset value
1: Bipolar analog input
2: 2nd analog input
3: MODBUS reference –
205 Maximum torque limit / ref 0 ... 200 % – 100 = 100 %
206 Minimum torque limit 0 ... 150.0 % – 100 = 10.0 %
207 V/f characterisitic adjustment
frequency 0 ... P1-09 – 500 = 50.0 Hz
208 V/f characterisitic adjustment
voltage 0 ... P1-07 – 100 = 100 V
1) See chapter 9.1.6 "Internal value"
Adr Description Data range Data format Example
When P1-09
≤
100 Hz Factor = 60 e.g. 30.5 Hz = 1830
When P1-09 is 101 ... 199 Hz Factor = 30 e.g. 30.5 Hz = 915
When P1-09
≥
200 Hz Factor = 15 e.g. 250 Hz = 3750