User Guide

4
COMMISSIONING WITH UNIDRIVE M70X WITHOUT POSITION FEEDBACK
Dyneo
+
with Unidrive M70x without position feedback Commissioning guide
6069 en - 2022.06 / c
2 - COMMISSIONING WITH UNIDRIVE M70x WITHOUT POSITION FEEDBACK
RFC-S mode for interchangeable Dyneo
+
permanent magnet motors without position feedback (sensorless)
Action Description
Before power-up
Ensure:
• The drive enable signal is not given (terminal 31 on Unidrive M700/M701 and terminals 11 & 13 on
Unidrive M702)
• The Run signal is not given
• Motor is connected
Power-up the drive
If Open Loop or RFC-A mode is displayed when the drive is powered up:
• Set Pr 00.048 = RFC-S (3).
• If the frequency of the mains supply is 60Hz, set Pr 00.000 = 1254, otherwise if the frequency of the
mains is 50Hz, set Pr 00.000 = 1253.
If RFC-S mode is displayed when the drive is powered up:
• If the frequency of the mains supply is 60Hz, set Pr 00.000 = 1244, otherwise if the frequency of the
mains is 50Hz, set Pr 00.000 = 1233.
Press the red Reset button or toggle the Reset logic input.
These actions will leave the drive in RFC-S mode with defaulted parameters. The drive will be in a
tripped state, but the associated trips are addressed by settings within this procedure.
Advanced menu
access from the
keypad
To access all menus required for commissioning, set Pr 00.0049 = All Menus (1).
Reminder: Select the menus using the left and right arrows. The parameters are selected using the up
and down arrows.
Set maximum
speed
Set the maximum speed in Pr 01.006 (rpm).
Set acceleration
and deceleration
rates
Set:
• Acceleration rate in Pr 02.011 (s up to Pr 01.006) - A value of 20s suites most applications.
• Deceleration rate in Pr 02.021 (s up to Pr 01.006) - A value of 20s suites most applications.
• Ramp Rate Units Pr 02.039 = On (1)
If a braking resistor is installed, set Pr 02.004 = Fast (0). Also ensure Pr 10.030, Pr 10.031 and Pr 10.061
are set correctly, otherwise permature ‘Brake R Too Hot’ trips may be seen.
Motor thermistor
set-up
The motor PTC thermistor must be connected to the drive:
• M700/M701: Connect thermistor to analogue input 3 (terminals 8 and 11).
• M702 (with date code 1710 or later): Connect thermistor to digital input 5 / analogue input 3
(terminals 8 and 10).
For the drive to manage the thermistor:
• Set Analogue Input 3 Mode Pr 07.015 = Therm short Cct (7).
If connection of the thermistor leaves insufcient inputs, then it may be necessary to t an SI-I/O module.