Lenze 4800 Manual page 79

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The following table describes briefly how to commission a DC shunt motor with an
attached tacho according to the example in FIG 5-1(see chapter 15).
Section
Switch-on sequence 1.X2/28 (Ctrl. enable) must be opened (LOW)
Input of the
motor data
adaptation of tacho 4.Set S4 before adapting the tacho voltage p
constants
Set the current limit 5.Max. motor current
Adjustment of max.
speed
Select direction of
rotation
Setpoint selection
Check whether LED
'RDY' ison
Controller enable
Additional settings
Stop!
( Do not change the switch-off sequence
The controller must only be disconnected from the mains when it is inhibited or the
motor is in standstill (for mains switch-off logic see chapter 15.9.2).
Activity
2.Connect the mains
Approx. 0.5sec after mains connection the
controller is ready for operation.
The time t depends on the initial response
1
of the field current
Typical values: t = 300ms ...600ms
1
t = t + 20ms
2 1
FIG: Signal flow after mains connection
(see fig. on the right)
3.Input of the motor nameplate data
- C083 Rated field current
- C084 Armature circuit time constant
- C088 Rated motor current
- C090 Rated motor voltage
- C025 -2- Select adjustment of terminals 3, 4
- C029 Adjustment of actual speed
- C022 + I
Amax
- C023 -I
Amax
6.Select the reference value for 100% setpoint
- C011 max. speed
7.CW rotation: HIGH signal at X2/21 (+ 13...+ 30 V)
CCW rotation: HIGH signal at X2/22 (+ 13...+ 30 V)
8.Apply a voltage higher than 0V (max. 10V)
- do not achivate JOG setpoint (LOW signal at X2/E4 and X2/E5)
9.If RDY is off and C067 is blinking, remove TRIP first.
10. Assign HIGH-signal to X2/28 (+ 13...+ 30 V) and do not press STP
The motor will now run with the selected setpoint and in the selected direction of rotation. If
necessary, adapt the controller to your application.
11. Further setting required for LECOM operation
Commissioning
Mains on
50 ms
TRIP
I
field
t
1
RDY
Integration of the
armature controller
in its operating point
Armature
current
Time
t
4900Str025
2
see also
Controller
enable
90 % of the
rated current
Chapter 5.2
Chapter 7.1.2.2 p
Chapter 5.4
Chapter 8.1 ff.
Chapter 5.3
48XX/49XXSHB0399
5-3