ebm-papst M3G150-FF21-51 - Manual (Page 7)

Operating instructions M3G150-FF21-51
Translation of the original operating instructions
4.2.3 Idle current
Because of the EMC filter integrated for compliance with EMC
limits (interference emission and interference immunity), idle
currents in the mains cable can be measured even when the
motor is at a standstill and the mains voltage is switched on.
● The values lie in a range of typical < 250 mA.
● The effective power in this operating state (readiness for operation) is
simultaneously at typical < 5 W.
4.2.4 Residual current operated device
Only universal (type B or B+) RCD protective devices are
permitted. Like frequency inverters, RCD protective devices
cannot provide personal safety while operating the device.
When switching on the power supply of the device, pulsed
charge currents from the capacitors in the integrated EMC filter
can lead to the RCD protective devices triggering without
delay. We recommend residual current devices with a trigger
threshold of 300 mA and delayed triggering (super-resistant,
characteristic K).
4.2.5 Leakage current
For asymmetrical power systems or if a phase fails, the
leakage current can increase to a multiple of the nominal value.
4.2.6 Locked-rotor protection
Due to the locked-rotor protection, the start-up current (LRA) is
equal to or less than the nominal current (FLA).
4.3 Connection in terminal box
4.3.1 Preparing connection lines for the connection
Strip the cable just enough so that the screwed cable gland is tight and
the terminals are relieved of strain. Tightening torque, see chapter 3.1
Product drawing.
Fig. 1: Recommended stripping lengths in mm (inside the terminal box)
Legend: CL = control lines
4.3.2 Connecting cables with terminals
; Remove the cap from the screwed cable gland.
Remove the cap only in those places where cables are inserted.
; Mount the screwed cable glands with the seal inserts provided in the
terminal box.
; Insert the line(s) (not included in the standard scope of delivery) into
the terminal box.
; First connect the "PE" (protective earth) connection.
; Connect the lines to the corresponding terminals.
Use a screwdriver to do so.
During the connection work, ensure that no cables splice off.
Fig. 2: Connecting the wires to terminals
; Seal the terminal box.
4.3.3 Cable routing
No water may penetrate along the cable in the direction of the cable gland.
When routing the cable, ensure that the screwed cable glands are
arranged at the bottom. The cables must always be routed downwards.
Item no. 50843-5-9970 · ENG · Revision 82745 · Release 2014-05-08 · Page 7 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com