HEIDENHAIN TNC 151 Q Mounting Instructions page 20

b) Analogue voltage output of spindle speeds (0 to 99 999 rpm)
outputs
PLC-Allocation
TNC 151 B /
TNC 155 B
Multipoint
connector
TNC 151 Q /
TNC 155 Q
Multipoint
connector PLC-
Power board
TNC 151 Q/
TNC 155 Q
Multipoint
connector Control
Spindle analogue voltage
+ 10 volts
-
J4/9
-
J1/9
0 volt
-
J4/10
-
Jl/lO
Gear ratio 1 A7
J2/2 J1/8
-
2 A8
J2/3 Jll9
-
3 A9 J2/4
J1/9
-
4 A10
J2/5 Jl/ll
-
5 All
~-
J2/6
J2ll
-
6
Al2 J2/7
J2/2
-
7 Al3 J2/8
J2/3
-
8 Al4
J2/9 J2/4
-
S-Strobe
A20 J3/3 J2/10
-
Auxiliary function
completed El7
J5/7
J5/6
-
Caution
The O-volt nominal value output must be grounded (see section 3.16 Wiring). For activation of the spindle with
DC-servodrive, the control provides a DC voltage of 0 to + 10 volts. The polarity of the output voltage is
determined by parameter MP172. With the aid of machine parameters 78 to 85, up to 8 gear ratios may be
defined. This shlould be commenced with the entry of the ratio with the lowest speed. The max. voltage at the
input of the servo-amplifier which is programmed with machine parameter 87. The S-gating signal is provided
with each gear ratio.
After output of MO3 or M04, the nominal value voltage with the ramp as programmed with machine para-
meter 168 are output prior to the feedback-signal "auxiliary function completed". No nominal value
voltage output takes place with M05.
The nominal value voltage for the spindle drive during gear change is determined with MP70. For the duration
of gear change, t:he polarity of this voltage MP70 is switched over in accordance with parameters 124 and 125.
The control is fitted with an S-Override potentiometer. The min. and max. voltage values can be programmed
with machine parameters (Nos. 86 to 89 and 184).
3.5 Emergency Stop
In/Output PLC-Allocation TNC 151 B/TNC 155 B
TNC: 151 Q/TNC 155 Q
Multipoint connector
Multipoint connector
PLC-Power board
Emergency Stop (Output)
-
Emergency stop-test (Input) E8
Jll8 J3/10
J5/8 J4/4.
Important functions of the TNC 151/TNC 155 are under constant supervision through self-diagnostics
(electronic subassemblies such as microprocessors, the memory read/write-store, positioning systems,
transducers etc.). If a fault is detected, it is indicated as a flashing display in the plain language dialogue.
On output of fault-indication, the "emergency stop" contact opens.
The "Emergency Stop" condition of TNC 151/TNC 155 can only be cancelled by switching off the mains
voltage, provided that the fault has been rectified. A special mains switch may be necessary for the control
only!
20