4-55
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in T
rouble
7
Supplement
Pr5.08
LV trip selection at main power OFF
Range
Unit
Default
Related
control mode
0 to 3
—
1
P S T F
Caution
To select whether to trip LV or Servo Off, in case of main power supply alarm.
In addition, also sets conditions for detection of main power supply off warning, in case the
main power supply cut-off condition persists more than the time set in Pr 7.14.
Setup value
Action of main power low voltage protection
bit 0
0
Servo Off in accordance with setting of Pr 5.07 and resumes Servo On
when power supply reclosed
1
Detects Err 13.1 Main power supply low voltage protection.
bit 1
0
Main power supply Off warning detects only on Servo On conditions.
1
Main power supply off warning always detected.
This parameter is invalid when Pr5.09 (Detection time of main power OFF)=2000. Err13.1
(Main power under-voltage protection) is triggered when setup of Pr5.09 is long and P-N
voltage of the main converter falls below the specified value before detecting the main
power shutoff, regardless of the Pr5.08 setup.
Pr5.09
*
Detection time of main power off
Range
Unit
Default
Related
control mode
20 to 2000
1 ms
70
P S T F
You can set up the time to detect the shutoff while the main power is kept shut off continuously.
The main power off detection is invalid when you set up this to 2000.
Pr5.10
Sequence at alarm
Range
Unit
Default
Related
control mode
0 to 7
—
0
P S T F
Specify the status during deceleration and after stop, after occurrence of alarm.
Setup
value
During deceleration
*
3
After stalling
Positional deviation/
external scale
deviation
[0]
Dynamic Brake (DB) action
Dynamic Brake (DB) action
Hold
*
1
1
Free-run (DB OFF)
Dynamic Brake (DB) action
Hold
*
1
2
Dynamic Brake (DB) action
Free-run (DB OFF)
Hold
*
1
3
Free-run (DB OFF)
Free-run (DB OFF)
Hold
*
1
4
Action A: Emergency stop
Action B: DB action
*
2
Dynamic Brake (DB) action
Hold
*1
5
Action A: Emergency stop
Action B: DB OFF
*
2
Dynamic Brake (DB) action
Hold
*
1
6
Action A: Emergency stop
Action B: DB action
*
2
Free-run (DB OFF)
Hold
*
1
7
Action A: Emergency stop
Action B: DB OFF
*
2
Free-run (DB OFF)
Hold
*
1
*
1 Positional deviation/external scale deviation is maintained during alarm condition and will be
cleared when the alarm is cancelled.
*
2 Action of A/B: When an alarm requiring emergency stop occurs, the action A is selected when the
setup value in the table is set within the range 4 to 7, causing emergency stop of operation. When
an alarm not requiring emergency stop occurs, it triggers dynamic braking (DB) specified by action
B, or free-running.
*
3 Deceleration period is the time required for the running motor to speed down to 30 r/min.
1. Details of parameter
[Class 5] Enhancing setting
Caution
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