7. APPENDIX
Page 145 © 2002-2007 DH Instruments, a Fluke Company
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7.1 DRIVERS
The PPC3 drivers option provides eight open collector drivers for operating external valves, solenoids,
indicators, etc. When operating from the setup-driver screen (see Section 3.4.7), pressing [ENT] allows
the operating mode of the drivers to be set. The two modes of operation are momentary and toggle.
A momentary driver changes ON/OFF state while the corresponding driver number on the keyboard is
being pressed. In toggle mode, the driver ON/OFF state toggles each time the corresponding key is
pressed and released.
Each driver output can sink 500 mA at 12 V. However, the total output of all the activated drivers cannot
exceed one Amp. Therefore, refer to Table 28 if multiple drivers are being activated simultaneously.
Table 28. External Drivers Current 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 delivered with the PPC3 accessories.
Table 29 and Figure 14 should be referred to when building a cable to utilize the drivers port.
Table 29. External Drivers Pin Outs
EXTERNAL DRIVERS
PIN DESCRIPTION
A D1 Driver #1 (Open Collector)
C D2 Driver #2 (Open Collector)
E D3 Driver #3 (Open Collector)
G D4 Driver #4 (Open Collector)
M D5 Driver #5 (Open Collector)
J D6 Driver #6 (Open Collector)
K D7 Driver #7 (Open Collector)
L D8 Driver #8 (Open Collector)
B Drivers (+ 12 V)
D Drivers (+ 12 V)
F Drivers (+ 12 V)
H Drivers (+ 12 V)
Figure 14. Drivers Connector Schematic
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