Power Supply; Items Supplied - HEIDENHAIN PWM 8 Operating Instructions Manual

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
Id.No. 312 431 01
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Option
Option
Option
Option
1)
Description of the Interface board Id. Nr. 312 186 .. in section 15.
Id.No. 312 431 02
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Option
Option
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Option
Option
Option
Option
Option
Items
PWM 8
FST 2
ROD 450
Power supply unit
Power cord 240V∼
Adapter 10-30V DC
BNC cable (3 pcs.)
Connecting cable 9-pin
Connecting cable 12-pin
Operating instructions
Interface board 11µApp
Interface board 1Vpp
Interface board TTL
Interface board HTL
Interface board Zn/Z1, EnDat,
SSI
- 6 -
Id.No.
309 956 ..
251 697 ..
295 455 A1
313 797 ..
223 775 01
317 293 01
254 150 02
309 773-01
298 399-01
312 737 ..
323 083 ..
323 077 ..
323 079 ..
322 732 ..
1)
312 186 ..