WD8530/8630
IP-WATCHDOG
IndustryPack®
The Newwood Solutions IP-WD-8530/8630 is a single-width Industry Pack that provides a watchdog timer, power supply monitoring, temperature monitoring and general purpose TTL I/O with the following characteristics:
• Programmable Periodic or Watchdog Timer with interrupt and TTL outputs.
• Timer programmable from 1 millisecond to 65.536 seconds.
• Three external timer outputs:
VMEbus SYSRESET*
Timer = zero
Toggle on zero
• Four range; +24V -24V, +48V or -48V auxiliary voltage monitor
• Three power supply monitors; +5V, +12V and -12V for internal or external supplies.
• Programmable Temperature Monitor/Thermostat.
• Open collector TTL outputs from Timer and Monitors with programmable polarity.
• Eight TTL compatible digital I/O lines.
• Interrupts available from all I/O, Timer and Monitor Functions.
The 8630 has added functionality over the 8530 by adding the system reset functionality of the Hytec VDS2081-R VME module. This function ensures that a crate reset is generated for a fixed duration whenever the crate is powered up. The unit archives this by generates a reset on SYSRESET* line of the P1 connector when the power is asserted. When configured as 8630 the SYSRESET* is generated for 160ms +/-20% on crate power up. The circuitry ensures that intermittent power-down and power-up will generate reset for at least 80ms.
Size: Single width Industry Pack 1.8ins x 3.9 ins
Digital I/O 8 lines individually programmable as input or output.
Outputs are open collector with I0k pull-up resisters, 48 mA sink capability.
Input line interrupt polarities individually programmable.
Timer 16-bit programmable timer. 1kHz input from IP Clock.
Down counter, interrupt and TTL output when zero
On the fly counter re-load for extending time-out period.
Watchdog and Periodic modes.
Watchdog Mode Time-out halts operation.
VMEbus SYSRESET* on time-out.
1 millisecond to 65.536 seconds range.
Periodic mode Interrupts and TTL outputs at regular intervals.
Toggle output for 50% duty cycle signals.
Toggle output range 2 millisecond to 131.072 second cycles.
SYSRESET* VMEbus compliant SYSRESET* output.
48 mA sink, open collector driver, 256 millisecond duration.
IP retains time-out indicator during SYSRESET* cycle,
Monitors Three internal or external power supply voltage monitors.
One external auxiliary monitor with four different taps.
Temperature Monitor, -55 to +125 Celsius range. 0.5 deg C accuracy.
All monitors generate interrupts and TTL outputs.
100 Hz low pass filter on Voltage Monitors.
Tolerance +5V, +12V and -12V volt monitors ANSI/IEEE STD 1014 1987 Rule 6.2.1
+48V, +24V -24V and -48V volt monitors: 10%.
Interrupts Single programmable interrupt vector.
8 digital I/O interrupt sources.
One timer interrupt source.
One temperature interrupt source.
Four voltage monitor sources.
Operating temp: 0 to 45 deg C ambient
Current draw: The 8530/8630 +5V highest current draw measured during test is 120mA.
The average current draw +5V is approx. 105mA
The 8530 +12V highest current draw measured during test is 15mA.
The 8530 -12V highest current draw measured during test is 5mA.
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