Dear Experts
When we are trying to index turret, it indexes just a little and stops with operator message number 2047 - turret clamp switch alarm or turret control unit alarm
Please find below our observations/actions
- Output for unclamp gets ON & also output for either CW/CCW rotation also get ON, but it just indexes a little and message 2047 appears
- Hydraulic system pressure is ok ie 50 bars
- 110V appears to socket over CW/CCW solenoid
- With this message number 2047, alarm output A5.6 gets 1 but we are unable to locate A5.6 in ladder - please let us know on how to correlate this A with corresponding R or D bit to further understand reason for message 2047
- Only once or twice in last 8 hours, we found it got unclamped, indexed and clamped properly - during that 8421 BCD code rightly matched with station number of turret , also strobe signal was 1
- Found little oil inside gland of encoder - cleaned same with pneumatic air
- Turret encoder cable continuity checked and found alright
Request your advice for the above - do u suspect turret encoder to be malfunctioning or some issue related with solenoid valve or contamination inside hydraulic manifold on which valves are mounted
Yesterday CW/CCW valve was replaced - we will check and ensure mounting is alright in line with ports on manifold
This , we think , is 10 station turret, we have spare encoder with 12 station hence unable to replace encoder
Please explain procedure for strobe setting - what we understand is turret should be at station 1 in clamped condition, in that condition strobe signal should be 1 also 8421 BCD code should read 1, if not encoder with gear to be taken out, slightly gear should be rotated to get strobe signal as 1 and encoder should be mounted back maintaining strobe signal as - is it correct please ?