mattke MDCA 100, Руководство пользователя

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19
Voltage motor
If the secondary voltage of power supply is VDC, the Vdc motor is calculated by the formula:
VDC = Vdc motor / 0,85
Where the Vdc motor is a sum of FCEM + the drop R*I for the winding resistance motor
Vdc motor = E+(Ri * In)
The FCEM of the motor „E“, may be calculated by the formula:
E = Ke * N° / 1000
Power supply construction (continue)
Example: Brush motor with the following data:
In =5 (A)
Ri = 1 (Ohm)
E=48 (V) at nominal speed 3000 (RPM)
Vdc motor = 48 + ( 1 * 5) = 53V
VDC = 53 / 0,85 = 64V
64V is the VDC voltage request for the power supply. You‘ll use a transformer with the se-
condary
V2 = 64 / 1,41= 45Vac
When you use the transformer with V2= 44/45Vac, it is correct.
Misure unit:
E = Ke *n°/1000 (Vdc)
Im = I motor (A)
Ri = Winding resistance (Ohm)
Ke =Voltage constant (V/kRPM)
n° = MAX speed (RPM)
Capacitor filter (C)
In regards to the capacitor filter we suggest a working voltage of:
*100VDC for Model 65
*160-200VDC for Model 100 and Model 130
Tipical value is from 4700uF to 10.000uF
Capacity above the filter effect, helps to recover energy during braking of the motor.
If the converter during braking has the green LED that flashes you must increase the value
of the capacitor (eg. 10.000uF from a 20.000uF)
Fuses (F1) e (F2)
Fuses are required on both the primary and secondary of the transformer to protect against
harm to the system and the transformer itself. They need to be of the slow blow type to handle
current in-rush at power-up. Locate the primary fuse (F1) on the hot leg of the AC input power
and the secondary fuse (F2) on the + side of the secondary output, before the rectifier.
Primary of the transformer: Use the formula below to calculate the correct values:
F1 (A) = P (VA) trasfo. / V1





Capacity above the filter effect, helps to recover energy during braking of the motor.
If the converter during braking has the green LED that flashes you must increase the value of the
capacitor (eg. 10.000uF from a 20.000uF)
Fusibili

F1 (A) = P (VA) trasfo. / V1
Example: Brush motor with the following data:
In =5 (A)
Ri = 1 (Ohm)
E=48 (V) at nominal speed 3000 (RPM)
Vdc motor = 48 + ( 1 * 5) = 53V
VDC = 53 / 0,85 = 64V
64V is the VDC voltage request for the power supply. You'll use a transformer with the secondary V2
= 64 / 1,41= 45Vac
When you use the transformer with V2= 44/45Vac, it is correct.
Misure unit:
E = Ke *n°/1000 (Vdc)
Im = I motor (A)
Ri = Winding resistance (Ohm)
Ke =Voltage constant (V/kRPM)
n° = MAX speed (RPM)
In regards to the capacitor filter we suggest a working voltage of:
*100VDC for Model 65
*160-200VDC for Model 100 and Model 130
Tipical value is from 4700uF to 10.000uF
Fuses are required on both the primary and secondary of the transformer to protect against harm to
the system and the transformer itself. They need to be of the slow blow type to handle current in-rush
at power-up. Locate the primary fuse (F1) on the hot leg of the AC input power and the secondary fuse
(F2) on the + side of the secondary output, before the rectifier.
Primary of the transformer: Use the formula below to calculate the correct values:
Secondary of the transformer: Use the table below

FUSE F2 (A) SIZE Drive (A)
5 2/4
8 4/8
12 7/14
16 10/20