Yaskawa F7 Technical Manual
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Brand: YASKAWA
Category: Controller , Control Unit , DC Drives , Inverter , Recording Equipment
Type: Technical manual for YASKAWA Varispeed f7
Pages: 16
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Date: 10/15/07, Rev: 07-10 Page 9 of 12 TM.F7.03
If two separate signal lines from the safety device to inputs BB and BB1 are used as shown on the previous page,
the drive does not need to be installed in an IP54 enclosure. If only one signal line from the safety device to the
drive is used, and BB and BB1 are linked at the drive, then the drive must be installed in an enclosure with a
protection degree of at least IP54 in order to maintain EN954-1, Safety Category 3 compliance.
If the safety device and the drive are installed in separate cabinets, the Safe-Off wires must be installed in a
short-circuit proof manner.
Only Permissible in IP54 Enclosure
The Safe-Off function does not cut the power supply to the drive and does not provide electrical isolation to the
motor. The drive must be disconnected from the power mains before any installation or maintenance work is done.
Always use “lock-out, tag-out” or similar approved safety protocol when servicing equipment.
Risk Assessment Required
To assure that the Safe-Off function appropriately fulfills the safety requirements of the application, a thorough risk
assessment shall be done according to ISO12100 for the whole safety system at the final installation.
Safety Function Inspection
Check the safety function during periodic maintenance by hitting the STOP switch or tripping the appropriate safety
interlock. Verify both that the applicable motor stops and that the digital operator shows the “BB” indication on the
display. If the motor does not stop or the “BB” indication does not appear, discontinue using the drive at once.
Replace the F7 or its control board and do not resume operation until it is verified both that the applicable motor
stops and that the digital operator shows the “BB” indication on the display.
9.0 Precautions
BB = Hardware Baseblk
24VDC
(Isolated)
-
+
BB1 = Hardware Baseblk
H1-01 =
H1-06 =
H1-05 =
H1-04 =
H1-03 =
H1-02 =
Run Rev
Run Fwd
3.3KΩ
24 (Ext Flt)
08 (Ext Baseblk)
06 (Jog Ref Sel)
03 (Ref Sel 1)
04 (Ref Sel 2)
14 (Clr Flt)
EN954-1
Category 3
Safety
Device