7. APPENDIX
Page 177
© 2009 DH Instruments, a Fluke Company
7
7
.
.
A
A
P
P
P
P
E
E
N
N
D
D
I
I
X
X
7.1
DRIVERS
The PPCH 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 PPCH accessories.
Table 29 and Figure 23 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 23.
Drivers connector schematic
