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VFD (Variable frequency drive)
Bosch Rexroth AB, Installation and maintenance manual, Hägglunds DOb, RE 15327-WA/05.2017
9.3.2 Functions and Parameters used in VFD for cooler fan electric motor
Parameter
Value
Name
C1:Motor and system parameters
C1.05
0,4
Motor rated power
C1.06
400
Motor rated voltage
C1.07
1,9
Motor rated current
C1.08
50
Motor rated frequency
C1.09
1380
Motor rated speed
C1.10
0,73
Motor rated power factor
C2: V/F control parameters
C2.00
1
V/f curve mode
C2.07
100
Slip compensation factor
E0: Set point and control parameters
E0.00
2
First frequency setting
source
E0.01
1
First run command source
E0.08
60
Maximum output frequency Allowed maximum output frequency of the
E0.09
54,67
Output frequency high limit According to application.
E0.26
1,0
Acceleration time
E0.27
1,0
Deceleration time
E0.50
1
Stop mode
E1: Input terminal parameters
E1.00
35
X1 input
E1.35
1
AI 1 input mode
E1.61
2
Broken wire protection
E1.73
54,67
Input curve 1 maximum
frequency
U1:Panel parameters
U1.00
1
Run monitoring display
U1.10
3
Stop monitoring display
Terminology and abbreviation used in parameter list is given below.
• Code: Function / parameter code, written in bx.xx, Cx.xx, Ex.xx, Hx.xx, Ux.xx, dx.xx
format.
• Name: Parameter name
• Default: Factory default
• Min.: Minimum setting step
• Attri: Parameter attribute
• – Run: Parameter setting can be modified when the converter is in run or stop
status.
– Stop: Parameter setting can only be modified when the converter is in stop status.
– Read: Parameter setting is read-only and cannot be modified.
• DOM: Depends on model
• [bx.xx], [Cx.xx], [Ex.xx], [Hx.xx], [Ux.xx], [dx.xx]: Function / parameter values
• Value: The value we chosen for the frequency controller
Comment
1: Square (Due to variable torque load of fan)
1-100% full slip compensation
2:Set AI 1 analog input as first frequency
setting source(E1.35)
Multifunction digital input
frequency converter.
f=n/30 → n=speed in rpm, n=1640 rpm
Ramp rise time
Ramp fall time
1: Freewheeling stop
35:Forward running
(Start signal from pump drive)
1: 4-20 mA (Frequency setting signal from
temperature sensor)
2:Error
Setting range is 0...E0.09 Hz
Actual speed
Setting speed
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