Lenze 8400 - Manual (Page 1259)

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
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18 Function library
18.1 Function blocks | L_DFRFG_1
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18.1.72.3 Ramp function generator stop
The stop function holds the status of the ramp function generator during operation.
• The stop function is activated by setting bRfgStop to TRUE.
• The last status is output to nOut_v (16384 ≡ 15000 rpm).
• The angle setpoint created internally on the basis of the input signal nIn_v is saved, thus the
monitoring function of the angular difference between the created setpoint angle and actual
angle cannot be activated.
• After bRfgStop is reset to FALSE, the angle setpoint is approached via the ramp function
generator again.
[18-31] Example: Stop function
18.1.72.4 Reset angle setpoint
By setting bReset to TRUE, the internally created angle setpoint is set to "0" and the ramp function
generator is activated.
18.1.72.5 Detecting the angular difference
In C01078/1 , a limit value for monitoring the angular difference between the created setpoint and
actual angles can be set.
• Scaling: a revolution is displayed with 65536 increments or steps.
• The ramp function generator can accept a angular difference of up to ±2140000000 increments
(≈32000 revolutions).
• If monitoring responds, the status signal bFail is set to TRUE.
• If the internally added angle setpoint is reset by setting bReset to TRUE, the bFail status signal is
reset to FALSE.
 C01077/1 : Maximum speed
 C01076/1 : Acceleration/deceleration time
nOut_v
nIn_v
t
TRUE
FALSE
bRfgStop
t
Œ

