Leica M500 N Service Manual page 13

Service manual M500 N, M520, M525
Doc Code 10 665 751
Optics carrier
Blockdiagram motorcontroller M500 N, M520
Addition for motorcontroller M525:
Powering
The optics-carrier is powered via the CAN-bus cable with +24VDC.
Power consumption is appr.
50mA in wait state,
150mA when one motor is running;
500mA when both motors, focus and zoom are blocked.
A DC/DC converter on the motorcontroller delivers +5V for logic supply. The +24VDC is measured on the controller
board with the microprocessor analog input. It can be asked in the diagnostic menu of the control unit.
1-9
P2
CAN-
CAN
Trans.
120E
CAN-Res.
24V
5V
5V
P3
Reset
EEPROM
P6
MF off
P7
Option
P10
CAN
P9
Iris control
CAN-
Controller
82527
EPROM
128Kx8
On-chip
RAM
1kx8
MEM3200
Prozessor
Universal
H8/532
Counter
On-chip-
Peripherals,
Watchdog
SCI
+24V
Zoom-
PWM
Motor Driver
+24V
Multifoc-
PWM
Motor Driver
P1
Service
PWM
+24V
Iris
Motor Driver
Description
08/2007 Gahe
P4
Zoom
P5
Multifoc
motcontr.ds4
P8
Iris