Unidrive M300/HS30 Quick Start Guide 15
Issue Number: 6
4.3.1 Use of residual current device (RCD)
There are three common types of ELCB / RCD:
1. AC - detects AC fault currents
2. A - detects AC and pulsating DC fault currents (provided the DC current reaches zero at least
once every half cycle)
3. B - detects AC, pulsating DC and smooth DC fault currents
• Type AC should never be used with drives.
• Type A can only be used with single phase drives
• Type B must be used with three phase drives
If an external EMC filter is used, a delay of at least 50 ms should be incorporated to ensure spurious
trips are not seen. The leakage current is likely to exceed the trip level if all of the phases are not
energized simultaneously.
4.4 Control terminal configurations and wiring
The setting of Pr 00.005 automatically sets the drive configuration.
Defaults are loaded before drive configuration changes are made.
Action will only occur if the drive is inactive, not in UU state and no User Actions are running.
Otherwise, the parameter will return to its pre altered value on exit from edit mode. All parameters
are saved if this parameter changes.
Only type B ELCB / RCD are suitable for use with 3 phase inverter drives.
00.005 Drive Configuration
RW Txt PT US
OL
Ú
AV (0), AI (1), AV.Pr (2), AI.Pr (3),
Preset (4), Pad (5), Pad.Ref (6),
E.Pot (7), torque (8), Pid (9)
Ö
AV (0)
RFC-A
Value Text Description
0AV
Analog input 1 (voltage) Analog input 2 (voltage) selected by terminal
(Local/Remote)
1AI
Analog input 1 (current) or Analog input 2 (voltage) selected by terminal
(Local/Remote)
2AV.Pr
Analog input 1 (voltage) or 3 presets selected by terminal
3 AI.Pr
Analog input 1 (current) or 3 presets selected by terminal
4Preset
Four presets selected by terminal
5Pad
Keypad reference
6 Pad.Ref
Keypad reference with terminal control
7E.Pot
Electronic Potentiometer
8 torque
Torque mode, Analog input 1 (current frequency reference) or Analog input 2
(voltage torque reference) selected by terminal
9Pid
PID mode, Analog input 1 (current feedback source) and Analog input 2
(voltage reference source)
Unidrive M300 Quick Start Guide English Iss6.book Page 15 Tuesday, September 22, 2015 3:21 PM
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