Appendix
COMPAX-M/S
Monitoring and limitation characteristics
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10.3.3 Monitoring and limitation characteristics
This section examines the relationships of COMPAX monitoring and limitation characteristics in more detail:
device supervision
Motor supervision
power output stage supervision
rate determination
current limit
min [I
GS
, P107*P105,P16*P105]
current control with
power output stage
speed control
motor
Hardware
Software
Software
1,5*I
GS
1,1*I
Mnenn
I
Gnenn
E53
E53
E41
T
G
T
M
...
current actual value
current reference value
I
Unom.
: unit nominal current
I
UP
: unit peak current I
Mnom.
: motor nominal current
Dynamic monitoring:
In COMPAX, the nominal current value is limited to the smallest value of the following 3 quantities.
♦
I
UP
:
♦
unit peak current
♦
P105 * P107:
♦
nominal motor current (P105) * maximum pulse current permitted for the motor (P107)
♦
P105 * P16:
♦
nominal motor current (P105) * maximum permitted (user-set) torque (P16)
Static monitoring
This executes triple monitoring:
Unit monitoring
Using the unit-specific time constant T
G
, a current greater than
I
Unom.
is permitted for a specific period; E53 then switches the unit
off.
Motor monitoring
Using the time constant T
M
, a current greater than 1.1 * I
Mnom.
is
permitted for a specified period; E53 then switches the unit off.
T
M
is set so that the pulse current P107 can flow for the period set
in P108.
Final stage / short circuit monitoring
Absolute monitoring to 1.5 * I
UP
.
Structural
diagram:
