Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

B–62755EN/011. DISPLAY AND OPERATION OF CRT/MDIThis data indicates the cause of P/S alarm 5018 or 218.471#7NPQ#6PQE#5 #4NSP#3SUO#2QCL#1PCL#0#0 to #3 →Cause of P/S alarm No. 5018P/S alarm No. 5018 can be cleared by issuing a reset. The cause indicationis retained until the cause is removed or until polygon synchronizationmode is released.#4 to #7 →Cause of P/S alarm No. 218If P/S alarm No. 218 occurs, polygon synchronization mode is released.The cause indication, however, is retained until P/S alarm No. 218 iscleared by issuing a reset.#0: The speed specified for spindle polygon synchronization is too low. (Theunit speed becomes 0 for internal operations.)#1 (PCL): The first spindle (master axis in polygon synchronization) is clamped.#2 (QCL): The second spindle (slave axis in polygon synchronization) is clamped.#3 (SUO): The speed specified in spindle polygon synchronization is too high. (Thespeed is restricted to the upper limit for internal operations.)#4 (NSP): A spindle required for control is not connected. (The serial spindle,second spindle, etc. is not connected.)#5: A negative Q value is specified while the QDRC bit (bit 1 of parameterNo. 7603) is set to 1.#6 (PQE): The P value or Q value, specified with G51.2, falls outside thepredetermined range. Alternatively, the P and Q values are not specifiedas a pair.#7 (NPQ): Although the P and Q values are not specified with G51.2, an R value isspecified. Alternatively, none of the P, Q, or R value is specified.CAUTION Bit 0 is set to 1 even when the specified spindle speed is 0 (bit 7 of DGN 470 is set to 1). This,however, does not cause P/S alarm No. 5018 to be output (because the programmed speedis 0). P/S alarm No. 5018 occurs when bit 7 of DGN 470 is set to 0, while bit 0 of DGN 471 isset to 1. Normal spindle speeds will not cause this alarm to be output. PCL indicates that the speed specified for the master axis exceeds the maximum speed for thefirst axis, specified in parameters No. 3741 to 3744, causing, the specified speed to be limitedto the maximum speed.PCL is not set to 1 provided the first spindle is connected correctly. QCL is set to 1 when the polygon synchronization speed specified for the second spindle (slaveaxis in polygon synchronization) exceeds the value set in parameter No. 7621, causing theactual speed to be limited to the specified value. SUO occurs if the number of distributed pulses for ITP exceeds 32767, that is, if the speedspecified for the first axis, divided by the specified P value, exceeds 59998. In other words,SUO occurs when a speed in excess of 59998 rpm is specified for the first axis if P is set to 1.61