Delta Tau PMAC2 Bedienungsanleitung PDF herunterladen (Seite 44)

Turbo PMAC2 PCI Hardware Reference Manual

40 Baseboard Connector Pinouts

J12 (JMACH4) Connector Description (Continued)

Pin # Symbol Function Description Notes

96 PWMCBOT8-

PULSE8-

Output Phase B bottom CMD or PFM

pulse

Programmable function control

97 GND Common Reference voltage

98 GND Common Reference voltage

99 +5V Output/Input +5V power For external circuit or from external

supply

100 +5V Output/Input +5V power For external circuit or from external

supply

The JMACH1 connector provides the interface pins for channels 3 and 4. Usually, it is connected to a breakout

board, such as one of the Acc-8x family of boards, or an application-specific interface board.

TB1 (2/4-Pin Terminal Block)

This terminal block can be used to provide the input for the power supply for the circuits on the PMAC2

board when it is not in a bus configuration. When the PMAC2 is in a bus configuration, these supplies

automatically come through the bus connector from the bus power supply; in this case, this terminal block

should not be used.

Pin#

Symbol Function Description Notes

1 GND Common Reference voltage

2 +5V Input Positive supply voltage Supplies all PMAC digital circuits

3 +12V Input Positive supply voltage +12V to +15V; not required

onboard; used on J1 to supply

analog inputs

4 -12V Input Negative supply voltage -12V to -15V; required for Opt-12

ADCs; used on J1 to supply analog

inputs

Note: Unless Option 12 (Analog-to-Digital Converters) is included on the board, only pins 1 and 2 will be

provided on this terminal block.

TB2 (3-Pin Terminal Block)

This terminal block provides the output for PMAC2's watchdog timer relay, both normally open and

normally closed contacts.

Pin#

Symbol Function Description Notes

1 WD_NC Output Watchdog relay out Normally closed

2 COM Input Watchdog return +V or 0V

3 WD_ No Output Watchdog relay out Normally open

Note: The normally closed relay contact is open while PMAC2 is operating properly – it has power and the

watchdog timer is not tripped – and closed when the PMAC2 is not operating properly – either it has lost power or

the watchdog timer has tripped. The normally open relay contact is closed while PMAC2 is operating properly

and open when PMAC2 is not operating properly.

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