bonitron M3452 - Figure 4-1: 3452 R8 Memory Map

User’s Manual
31
Figure 4-1: 3452R8 Memory Map
TEMPERATURE
WORD 1
OUTPUT DATA MAP
WORD 0
FAULT RECORDS
OLDEST
OPEN THERMISTOR
M/S MISMATCH
NETWORK
OVERTEMP
LOGIC
SHORT
OVERCURRENT
BLOWN FUSE
MASTER
HEARTBEAT
STATUS
BRAKING
012301234567
WORD 3 WORD 2
BUS VOLTAGE
DUTY CYCLE
WORD 4
WORD 5-15
NEWEST
5
15
SETPOINT
WORD 1
INPUT DATA MAP
WORD 0
ENABLE
DISCHARGE
RESET
MASTER
0123
NET LATCH
4
4.2.4.2. INPUTS
Words 0-1 of input data are control registers for the braking module. Word
0 is the least significant word.
4.2.4.2.1. CONTROL BITS
The bits of word 0 of input data represent the controllable status
flags for the braking unit. Bit 0 is the least significant bit.
4.2.4.2.1.1. ENABLE – BIT 0
Setting bit 0 enables the braking unit. The hardware enable
terminal (4.2.2.2) must also be closed for the unit to be active.
4.2.4.2.1.2. DISCHARGE - BIT 1
Setting bit 1 sends a discharge command to the braking unit.
The hardware discharge terminal (4.2.2.3) must also be
closed to initialize a discharge.
WARNING!
The discharge input causes the IGBT to go on full until the input is removed.
This can cause severe overheating in the load resistor if input power is not
removed from the DC bus!
4.2.4.2.1.3. RESET - BIT 2
Setting bit 2 sends a reset command to the braking unit. The
hardware reset terminal (4.2.2.4) does not need to be closed
for the unit to reset the braking unit.