KEB COMBIVERT S4 Instruction Manual page 75

Offset REF 1
Examples:
Zero Point Hysteresis
REF 1
Example:
Permits the shifting of the setpoint-speed characteristic.
! Only at CP.7 > 0,00 s!
n
max
1)
2)
"forward"
3)
+10 V
-10 V
n
max
"reverse"
Characteristic 1: CP.16 = 0% (standard setting)
0V = 0 rpm
Rotation "forward":
Rotation "reverse":
Characteristic 2: CP.16 = +40%
0V = 40 % of n "forward"
max
Rotation "forward":
Rotation "reverse":
Characteristic 3: CP.16 = –70%
0V = 70 % of n "reverse"
max
Rotation "forward":
Rotation "reverse":
A zero point hysteresis of the analog reference input REF1 is adjusted
with this parameter. Voltage fluctuations and ripple voltages around the
zero point of the setpoint value do not cause any drifting of the motor.
! Only when CP.7 or CP.8 > 0,00 s !
n
max
"forward"
-10 V
+10 V
n
max
"reverse"
If CP.17 is adjusted to 5 % then the drive starts only at a setpoint value of
+/- 0,5 V.
Parameter Description
Setting range:
Resolution:
Factory setting:
Customer setting:
n is attained at +10V
max
n is attained at -10 V
max
n is attained at 60% of +10V
max
maximal 60% of n possible
max
maximal 30% of n possible
max
n is attained at 30% of -10V
max
Setting range:
Resolution:
Factory setting:
Customer setting:
Adjustment of parameter
CP.7 and CP.8 must be
observed!
-100...+100 %
0,1 %
____ %
Adjustment of parameter
CP.7 and CP.8 must be
observed!
0...10 %
0,1 %
____ %
0...10 % = 0...+/- 1 V
GB 31
GB
0 %
0 %