DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
Page 135
©2001 DH Instruments, Inc .
7. A
PPENDIX
7.1 DRIVERS
The PPCK+ drivers option provides eight open collector drivers for operating external valves,
solenoids, indicators, etc. When operating from the setup-driver screen (see Section 3.3.4), pressing
enter will allow the
operating mode of the drivers to be set. The two modes of operation are
Momentary and Toggle. A momentary driver will change state while the corresponding driver number
on the keyboard is being pressed. In
toggle mode, the driver state will toggle each time the
corresponding key is pressed and released.
Each output can sink 500 mA at 12 V. However, the total output of all the activated drivers cannot
exceed 1 Amp. Therefore, if multiple drivers are being activated please refer to the following chart as
a guide.
Table 19. Driver Output
# OF ACTIVE
DRIVERS
MAX CURRENT
PER OUTPUT
1 500 mA
2 400 mA
3 275 mA
4 200 mA
5 160 mA
6 135 mA
7 120 mA
8 100 mA
The male connector (P/N 401382) for the DRIVERS port is an optional PPCK+ accessory.