MX2 Quick Start Guide
30 MX2 Quick Start Guide
3.15 Analogue and pulse outputs
Several monitors are available through the pulse output [EO] or the analogue output [AM].
For the pulse train output there are two types of outputs, code “03”, “08” and “15” outputs a pulse train with a 50% duty cycle
while the PWM has a fixed frequency of 156.25Hz were the duty cycle is changed depending on the output.
3.16 Torque limit
Torque limit function allows you to limit the motor output when sensorless vector control (SLV) is selected in A044. This func-
tion has limited accuracy and repeatability and is realiable only above 15 - 20Hz. You can choose between models using parame-
ter b040.
Quadrant specific setting mode (b040=00) in which individual torque limit value are applied on the four quadrants (forward
powering, reverse regeneration..) by torque limits 1 to 4 (b041 to b044)
Terminal-switching mode (b040=01) where the torque limit values set in torque limits 1 to 4 (b041 to b044) are switched
depending on the combination of the states of the torque limit switch terminals 1 and 2 (TRQ1 and TRQ2) assigned to digital
inputs.
Analog voltage input mode (b040=02) where the torque limit value is set by a voltage applied to the terminal O. Range 0 to
10V corresponds with torque limit range between 0 and 200% that is valid for all operating states.
If “TL” torque limit enable functions has been assigned to any of the multi-function inputs the setting of parameter b040 only is
valid when this input is ON. No torque limitation will be applied whe the input is OFF.
Parameter Parameter name Description
C027 [EO] terminal selection (Pulse/PWM
output)
00... Output frequency (PWM)
01... Output current (PWM)
02... Output torque (PWM)
03... Output frequency (Pulse train)
04... Output voltage (PWM)
05... Input power (PWM)
06... Electronic thermal load ratio (PWM)
07... LAD frequency (PWM)
08... Output current (Pulse train)
10... Heat sink temperature (PWM)
12... General output (PWM)
15... Pulse train input monitor
16... Option(PWM)
C028 [AM] terminal selection (Analog
voltage output 0...10V)
00... Output frequency
01... Output current
02... Output torque
04... Output voltage
05... Input power
06... Electronic thermal load ratio
07... LAD frequency
10... Heat sink temperature
11... Output torque (with code)
13... General output
16... Option
C030 Digital current monitor reference
value
Current with digital current monitor output at 1,440Hz Range is
20%~200% of rated current
C047 Pulse train input/output scale con-
version
If EO terminal is configured as pulse train input (C027=15), scale
conversion is set in C047. Pulse-out = Pulse-in (C047) Set range is
0.01 to 99.99
Parameter Parameter name Description
b040 Torque limit selection 00 Quadrant-specific setting mode
01 Terminal-switching mode
02 Analog voltage input mode(O)
b041 Torque limit 1 (fwd/power) Torque limit level in forward powering quadrant, range is 0 to 200% / no(disabled)
Forward rotation
Reverse rotation
Regeneration
(
b042
)
Torque
(+)
Torque
(-)
Powering
(
b043
)
Powering
(
b041
)
Regeneration
(
b044
)
Digital inputs
TRQ2 TRQ1
OFF OFF b041
OFF ON b042
ON OFF b043
ON ON b044
Torque limit
selection
I129E-EN-02+MX2+QuickStartGuide.book Seite 30 Mittwoch, 7. November 2012 1:54 13
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