Lenze ECSCSxxx - Manual (Page 306)

Function library
DFOUT (master frequency output)
12
l
306 EDBCSXS064 EN 4.0
Configuring the master frequency output signal
)
Note!
Dependent on the system, the master frequency output X8 has a delay time of
T
d
= 1 ms.
Via code C0540 you configure the type of the master frequency output signal:
C0540 = 0 Output of an analog signal
Function The input signal DFOUT_nOut_vis interpreted as an analog signal [%] and is output as a
frequency signal on the master frequency output X8.
Scaling 100 % º (INT)16384 º C0011 (n
max)
Transfer function
f [Hz] + DFOUT−Out [%] @ C0030
100 @
C0011 (n
max
)
60
DFOUT−ln_v + f [Hz] @ 60
C0030 @
2 14
15000
Example l DFOUT_nOut_v = 50 %
l C0030 = 3, this corresponds to a number of increments of 2048 increments/revolution
l C0011 = 3000 rpm
f [Hz] + 50 % @ 2048
100 @
3000
60
+ 51200 Hz
C0540 = 1 Output of a speed signal
Function The input signal DFOUT_nOut_vis interpreted as a speed signal [rpm] and is output as a
frequency signal on the master frequency output X8.
Scaling 15000 rpm º (INT)16384
Transfer function
f [Hz] + DFOUT−Out [rpm] @ C0030
60
Example l DFOUT_nOut_v = 3000 rpm
l C0030 = 3, this corresponds to a number of increments of 2048 increments/revolution
f [Hz] + 3000 rpm @ 2048
60
+ 102400 Hz
C0540 = 2 Encoder simulation of the resolver with zero track in resolver position
Function l The function is used if a resolver is connected to X7.
l The encoder constant for output X8 is set in C0030.
l The output of the zero pulse with reference to the rotor depends on how the resolver is
mounted to the motor.
l The zero pulse can be shifted by +360 ° via code C0545 (65536 inc = 360 °).
Signal sequence Track CW rotation CCW rotation
B
B
A
A
Z
Z
A If the input values are positive,
track A leads by 90º. If the input values are
negative, track A lags by 90º.
B ˘ ˘
Signal sequence with phase shift (CW
rotation)
ƒ The output signal corresponds to the message of an incremental encoder:
– Track A, B and, if selected, zero track as well as the corresponding inverted tracks
are output with tracks shifted by 90 degrees.
– The levels are TTL compatible.
ƒ The zero track is output in accordance with the function set in code C0540.