Optidrive E3 Set-up Guide
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17
Read Only Status Parameters
P00-04 – Digital input status
P00-04 indicates the status of the digital inputs.
As default with no terminals connected, P00-04 will show
0000
. This means terminals are inactive.
When a digital input is active, the individual digits will show a logic 1.
0
000 /
1
000 - The left hand digit shows the status of digital input 1 – terminal 2
0
0
00 / 0
1
00 - The 2nd digit shows the status of digital input 2 – terminal 3
00
0
0 / 00
1
0 - The 3rd digit shows the status of digital input 3 – terminal 4
000
0
/ 000
1
- The right hand digit shows the status of digital input 4 – terminal 6
Note:
Terminal 4 and terminal 6 can be both digital and analogue inputs depending on the setting of
parameter P-15. When terminals 4 and 6 are analogue inputs, the associated digit in P00-04 changes state at
approx. 5V input.
P00-05 – PI Control output
P00-05 displays the value of the PI controller output as a %.
This parameter becomes active when the PI controller is enabled by setting P-12 = 5.
See MCW Knowledge Base document MCW-E3-027 for information on the E3 PI controller set up.
P00-06 – DC bus voltage ripple
P00-06 displays the E3 internal DC bus ripple voltage (Only applicable to 3 phase input drives).
The drive monitors the voltage ripple on the drives internal DC bus in conjunction with the input phase loss
circuitry to protect the drive in the event of one input phase being lost.
With one input phase missing with no motor load, the DC ripple is very small. As the motor load increases, the
DC bus ripple will increase. At approx. 50% motor load, the DC bus ripple will increase above the trip threshold
and the drive will trip on
FLt-dc
- DC bus ripple too high trip.
Possible causes of
FLt-dc
trips are a faulty circuit breaker, blown fuse or a voltage in-balance between supply
phases.
P00-07 – Applied motor voltage (VAC rms)
P00-07 displays the value of motor voltage that is being outputted by the drive and applied to the motor
terminals.
P00-08 – DC bus voltage
P00-08 displayed the drives internal DC bus voltage. The DC bus voltage is internally filtered within the E3 so
this parameter may not display fast transient rises in DC bus voltage.
The DC bus voltage can be calculated from: AC input voltage x
√2
P00-09 – Heatsink temperature (
o
C)
P00-09 displays the drives heatsink temperature in
o
C.
The heatsink temperature is used to automatically reduce the drives switching frequency (P-17) in order to try
to stop the drive tripping on heatsink over-temperature. P00-32 displays the actual switching frequency if the
switching frequency has been reduced.
If the switching frequency has been reduced to the minimum and the heatsink temperature reaches 95
o
C, the
drive will trip on
O-t
– heatsink over-temperature.
