HEIDENHAIN PWM 8 - Manual (Page 6)

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The following functions are available in the EXPERT MODE:
•
Input of a preset for the internal universal counter
•
Encoder voltage selectable
•
Settings (e.g. dialogue language) programmable via parameters
2.4 Power Supply
Possibilities of powering PWM 8
•
Line-powered via a separate 24V power supply unit (standard set)
•
By an external, non-floating dc voltage source of 10 - 30 V / approx. 1 Ampere (adapter cable supplied
with PWM 8).
•
Via the subsequent electronics; encoder, PWM 8 and subsequent electronics must be connected in
series (Caution: power consumption of PWM 8 approx. 5.5W).
The power supply of the measuring systems (external power supply unit or subsequent electronics) is
selected via the soft keys of PWM 8.
If a voltage is connected to the DC-IN socket of PWM 8, the PWM base unit is always operated with this
voltage.
If PWM 8 and/or the encoder are to be powered via the subsequent electronics,
•
the encoder monitoring function of the subsequent electronics is active;
•
it can be selected, how the encoder voltage of the subsequent electronics is fed to the encoder via
PWM 8:
1. directly to the encoder (via parameter: P2 in EXPERT MODE)
2. via the switching regulator (integrated in PWM 8) with potential segregation and possibility of setting
the encoder voltage.
2.5 Items Supplied
Diagnostic Set Items Id.No.
Id.No. 312 431 01 Id.No. 312 431 02
+ + PWM 8 309 956 ..
+ Option FST 2 251 697 ..
+ Option ROD 450 295 455 A1
+ + Power supply unit 313 797 ..
+ + Power cord 240V
∼
223 775 01
+ + Adapter 10-30V DC 317 293 01
+ + BNC cable (3 pcs.) 254 150 02
+ + Connecting cable 9-pin 309 773-01
+ + Connecting cable 12-pin 298 399-01
+ + Operating instructions 312 737 ..
+ Option Interface board 11µApp 323 083 ..
Option Option Interface board 1Vpp 323 077 ..
Option Option Interface board TTL 323 079 ..
Option Option Interface board HTL 322 732 ..
Option Option Interface board Zn/Z1, EnDat,
SSI 312 186 .. 1)
1) Description of the Interface board Id. Nr. 312 186 .. in section 15.