Manual

36
Curtis PMC 1207/1207A Manual 29
2 A — INSTALLATION & WIRING: 1207A Controller
0–5kΩ Throttle (“Type 3”)
The 0–5kΩ throttle (“Type 3” in the programming menu) is a 2-wire resistive
throttle that connects between the 5kΩ–0/0–5kΩ pin (Pin 8) and the Pot Low
pin (Pin 7), as shown in Figure 10
A . It doesn’t matter which wire goes on which
pin. Zero speed corresponds to 0Ω and full speed corresponds to 5kΩ.
Fig. 11A Alternative
wiring for 1207A
emergency reverse check.
MULTI
MODE
EMERGENCY
REVERSE
For rest of wiring diagram, see Fig. 3A (series motors) or Fig. 4A (compound motors).
BRAKE FORWARD
CONTACTORS
MAINREVERSE
SWITCHES
FORWARD
REVERSE
9.1 kΩ
This feature must be enabled at Curtis PMC. If the option is selected and the
check wire is not connected, the vehicle will not operate. If the option is not
selected and the check wire is connected, no harm will occur—but continuity will
not be checked.
The emergency reverse check output wire is connected to Pin 10, as shown
by the dashed lines in the two basic wiring diagrams (Figures 3
A and 4 A ).
Alternatively, a 9.1kΩ resistor can be wired directly across the emergency
reverse switch to provide the dc bias, as shown by the dashed line in Figure 10
A .
Fig. 10A Wiring for
0–5
Ω throttle (“Type 3”).
87654321
FASTER
16 15 14 13 12 11 10 9
5kΩ POT
Pin 8
Pin 7
5kΩ–0
Pot Low
PIN KEY (1207A)
WIRING: Emergency Reverse Check
An optional wire connected directly to the emergency reverse (belly button)
switch provides for broken wire detection when that option is enabled at the
factory. The emergency reverse check output wire provides a dc bias to the
emergency reverse circuit to check for continuity. If there is no continuity in the
circuit, the controller shuts down and a fault code is indicated.