Interface - HEIDENHAIN TNC 150 Service Manual

DR. JOHANNES HEIDENHAIN
D-8225 haunreut
Telefon (08669) 31-O. Telex 56831
SERVICE MANUAL TNC 150
Page 8
Kundendienst
Section 2.2.2
Fault descriptions TNC 150
VDU Display (flashing)
X-MEASURING SYSTEM DEFECTIVE
Y-MEASURING SYSTEM DEFECTIVE
Z-MEASURING SYSTEM DEFECTIVE
AXIS 4 MEAS. SYSTEM DEFECTIVE
RELAY EXT. DC VOLTAGE MISSING
EMERGENCY STOP DEFECTIVE
WRONG REFERENCE POINT
SWITCH POWER OFF, THEN
ON AGAIN
Fault cause
.Measuring system not connected
.C&le damaged
.Glass scale dirty or damaged
.Scanning head damaged
.Measuring system supervision damaged
.Machine voltage (+24V) missing
(for checking routine, see Mounting
Instructions and Interface Circuit
Control-Machine manual TNC 150 B/
TNC 150 Q page 19 and 20)
.Supervision circuit defective
.Fault in the emergency stop
circuit of the machine (for checking
routine see Mounting Instructions and
Interface Circuit Control-Machine
manual TNC 150 B/TNC 150 Q page 19/20)
Defect in Control's internal
Emergency
Stop supervision
.Traversed-over reference point lies
outside the reference point end-pos-
ition (also see Mounting Instructions
and Interface Circuit Control
Machine TNC 150 B/TNC 150 Q, pg.20.21.22
.Defect in Control/machine interface
Changing of machine parameters 12,13,
14,15,60,72,90,170 during operation
Possible fault location
Measuring system
Analogue Board
PLC I/O Board (TNC 150 P/Q)
PLC Interface Board (TNC 150 P/Q)
SE Board (TNC 150 A/B)
Terminal Board (TNC 150 A/B)
Analogue Board
PIC I/O Board ONC 150 P/Q)
PLC Interface Boaid (TNC 150 P/Q)
SE Board (TNC 150 A/B)
Teminal Board U-NC 150 A/B)
kchine (cams/switches
"reference end position" or "&&fere&
pulse inhibit")
PLC I/O Board (TNC 150 P/Q)
PLC Interface Board (TNC 150 P/Q)
SE Board VTNC 150 A/B)
Terminal Board YlYNC 150 A/B)