HEIDENHAIN iTNC 530 Service Manual page 294

Assignment of the speed encoder outputs to
the drive-control boards of the CC 422
1 (main DCB)
2 (auxiliary DCB)
Fixed assignment of PWM output and speed encoder input of the CC 424 (B):
Drive-control board
of the CC 424 (B)
1 (main DCB)
1 (main DCB)
1 (main DCB)
1 (main DCB)
1 (main DCB)
1 (main DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
2 (auxiliary DCB)
All speed encoder inputs operate with 1 Vpp and are EnDat-compatible.
EnDat encoders
Motor encoders with EnDat interface can feature a so-called electronic ID label. It contains the
Memory areas in
motor data, such as device name, ID number, serial number, etc.
the EnDat encoder
Furthermore, the machine manufacturer has the possibility of storing machine or system-
specific data.
The signal cable for the motor encoder also includes the temperature sensor lines of the
Temperature
sensor lines motor.
Polyfuses
Different
servicing
18 – 294
Note
On the CC 424 (B) with 8 and with 14 control loops, X57/X80 und X58/X81 are still located
on the main DCB.
Note
Current CCs feature so-called "Polyfuses". These are electronic fuses that separate
defective peripheral devices from the low voltages in the control in the event of an error.
This is also true for the encoders!
If a defective encoder draws too much current, it is "separated" from the control component.
Corresponding error messages are displayed.
Caution
The service on the CC 422 and CC 424 (B) is different.
Ensure to use the correct instructions!
Speed encoder input
X15 - X20
X80 - X87
PWM output
(MP120.x/MP121.x)
X51
X52
X53
X54
X55
X56
X57
X58
X59
X60
X61
X62
X63
X64
HEIDENHAIN Service Manual iTNC 530
Speed encoder input
X15
X16
X17
X18
X19
X20
X80
X81
X82
X83
X84
X85
X86
X87