Enshu VMC400 Fanuc 6M B 4th axis it4 interlock signal locating

[Kris-SVK]

We're upgrading an enshu VMC 400 to 4 axis and have gotten as far as the 4th axis fanuc servo powers up and is held from rotating by the controller, however we can't move it in either direction with C axis switch. It can not be rotated by hand in either direction when the machine is turned on.
Does anyone know where/how to switch the it4 interlock signal, according to a Russian manual of this controller there's a connector named C03 in which #36 is supposed to enable/disable 4th axis interlock?

thanks
Please see video


https://fb.watch/8MDvRZOzLF/

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[oetkbyentc]

The 4th axis interlock is actually on C01. So if you see something referencing C03 the control may have the PMC feature which means you need the prints or ladder to determine where the signals would get connected.
I'm guessing what it is looking for is "4th axis unclamp confirmation"

C03 pin 36 is 3rd (Z) axis interlock with no PLC. So this also points to the control probably having a PLC

[Kris-SVK]

The 4th axis interlock is actually on C01. So if you see something referencing C03 the control may have the PMC feature which means you need the prints or ladder to determine where the signals would get connected.
I'm guessing what it is looking for is "4th axis unclamp confirmation"

C03 pin 36 is 3rd (Z) axis interlock with no PLC. So this also points to the control probably having a PLC

Actually it turned out to be on C02, we solved it and now the 4th axis works. It seems Enshu reconfigured pins as they felt like.

Video of 4th axis working:

https://fb.watch/8NVZJTMpN5/