STEP ET Series - Page 147

Chapter 7 Parameter Explanation
ET/EP/EH Series Intelligent Flexible Driver Manual
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0: No fault relay output when a light fault is observed;
1: Output the fault relay when a light fault is observed;
2: When 52# PTC fault occurs, output fault relay and shut down, and the fault does not automatically
reset;
3: Both 1 and 2 are valid.
P94.01 sets the auto-reset time, and the default is 10 seconds.
P94.02 sets the number of auto-reset within 30 minutes; default is not auto-reset; auto-reset fault
may trigger dangerous system operation, please use with caution.
Function code
Name
Setting range
Factory setting
P94.03
Cooler overheat time (s)
0.0~18.0
0.5
P94.04
Overspeed protection time (s)
0.00~180.00
1.00
P94.05
Bus fluctuation voltage threshold
(V)
30~150
100
P94.03 sets the protection time for cooler overheat protection (3#fault). When the cooler temperature
exceeds 80 degrees, the protection time P94.03 will be performed;
P94.04 sets the acknowledging time for overspeed protection (30#fault);
P94.05 sets the determining voltage drop value of bus fluctuation voltage threshold (Fault No. 29).
When input voltage fluctuation is greater than P94.05 value protection, it can be increased in
unstable power grid areas;
Function code
Name
Setting range
Factory setting
P94.08
Output phase loss determination
(s)
0.000~65.535
2.000
P94.09
Fault shielding function
0~65535
0
P94.10
CD phase mismatch threshold
9~65535
300
P94.11
ABZ protection threshold (%)
1~100
20
The input phase loss acknowledging time set by P94.08 is only detected during normal operation or
encoder dynamic self-learning, and when the phase current is continuously greater than the time of
P94.08.
P94.09 fault shielding function, Bit0 setting to 1 can shield power grid voltage faults, Bit1 setting to
1 for bus undervoltage faults, and Bit2 setting to 1 for shield fan fault detection.
P94.10 sets the threshold for CD phase stagger judgment:
1 SinCos encoder, protection if the difference between AB signal and CD signal exceeds 94.10
for 500 ms;
2 Protection if the difference between the absolute position of Endate and the position of AB
signal exceeds 94.10.
P94.11 is ABZ protection threshold for incremental encoders:
When P10.00 = 3, feedback speed is less than 1%, and when speed error is large, there is protection
after it lasts for 400 ms.
Function code
Name
Setting range
Factory setting
P94.13
I
2
t protection option
0~3
0