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- Jun 12, 2014
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Hi Taki,
You can use an E-Stop in either wiring configuration (just two examples), it simply disconnects the VFD inputs. On some machines that come with an E-Stop, they usually interrupt 24VAC power to the contactors. As an added safety precaution I often use a separate switch block that interrupts the signaling to the VFD inputs. Just a safety thing, but depends on how everything is wired up. So in your case, suppose the jog switch failed closed, the E-Stop would still interrupt the VFD run signal. I set A039 = 4 (Controlled deceleration (valid during run)). Should not be anything else, you will need to program one of the inputs to the JOG function, usually input 3 "C003" and you would set it to 06JG:Jogging).
Mark
You can use an E-Stop in either wiring configuration (just two examples), it simply disconnects the VFD inputs. On some machines that come with an E-Stop, they usually interrupt 24VAC power to the contactors. As an added safety precaution I often use a separate switch block that interrupts the signaling to the VFD inputs. Just a safety thing, but depends on how everything is wired up. So in your case, suppose the jog switch failed closed, the E-Stop would still interrupt the VFD run signal. I set A039 = 4 (Controlled deceleration (valid during run)). Should not be anything else, you will need to program one of the inputs to the JOG function, usually input 3 "C003" and you would set it to 06JG:Jogging).
Mark