Mitsubishi Electric FR-E800 Instruction Manual page 209

 Pulse monitor display on the operation panel
• The position command, current position, and the status of droop pulses can be displayed on the operation panel.
Display data
Lower monitor
10000
Upper monitor
Lower monitor
100
Upper monitor
Lower monitor
100000000
*1
(9-digit)
Upper monitor
*1 The count continues even after 99999999 is exceeded on the pulse monitor.
NOTE
• The pulse count starts at servo on.
• When Pr.538 Current position retention selection = "21 or 22" under Vector control, the pulse is counted even at servo off.
(Refer to
 Cumulative pulse monitoring
• The accumulated value of the encoder pulses can be monitored.
• The cumulative pulse monitor is available when "71 or 72" is set in the monitor selection parameters (Pr.52, Pr.774 to
Pr.776, and Pr.992).
Monitor item
*1
Cumulative pulse
Cumulative pulse
*1
overflow times
*1 Since the panel display of the operation panel or enclosure surface operation panel (FR-PA07) is in 4 digits, the monitor value of more than "9999"
is displayed as "----".
*2 The output is always negative regardless of the Pr.290 setting when a negative value is monitored. Negative values are not displayed on the
operation panel or parameter unit. The values "-1 to -32767" are displayed as "65535 to 32769" on the LCD operation panel (FR-LU08) or
parameter unit (FR-PU07).
 Cumulative pulse division scaling factor (Pr.636)
• Set the division scaling factor on the cumulative pulse in Pr.636.
• Cumulative pulse count value calculation method
Cumulative pulse count value = Cumulative pulse division scaling factor × (Cumulative pulse overflow times × 32768 +
Cumulative pulse monitor value)
Cumulative pulse count value: Number of pulses multiplied by 4
Cumulative pulse division scaling factor: Pr.636
 Cumulative pulse monitor value clear (Pr.635)
• The cumulative pulse monitor and the cumulative pulse overflow times can be cleared using the X52 signal.
• To input the X52 signal, set "52" (X52) in any parameter from Pr.178 to Pr.189 (Input terminal function selection) to
assign the function.
• Use Pr.635 Cumulative pulse clear signal selection to select the clearance method for the cumulative pulse monitor
and the cumulative pulse overflow times.
Pr.635 setting
0 Cleared at the edge when the signal is switched to ON.
1 Cleared while the signal is ON.
208
7. Position Control
7.6 Pulse monitor
Multifunction monitor display
page 215.)
Pr.52, Pr.774 to Display with
Pr.776, Pr.992 minus sign
*2
71
○
*2
72
○
X52 signal
Cumulative pulse monitor value clear
Pulse monitor display
(output frequency displayed)
The cumulative number of pulses is displayed. (Monitor range: 0 to 32767
when the value is positive or -32767 to 0 when the value is negative)
The number of the cumulative pulse overflow times is displayed. (Monitor
range: 0 to 32767 when the value is positive or -32767 to 0 when the value is
negative)
Description