Sprint Electric 1220i, Product Manual

Page: 14 / 24

9 Installation
CONTROL TERMINAL LISTING - tightening torque: 0.25 Nm (2.2 lbf.in)
9 RUN Internal 12K pull-up to +12 V. Close Terminal 9 to COMMON to run the drive.
Open Terminal 9 to stop - this will cause immediate drive inhibit; if the motor is
rotating at the time it will coast to STOP (zero speed).
WARNING!
PERSONAL INJURY HAZARD
RUN is an electronic inhibit function. The field remains energised, and all
power terminals ‘live’. During hazardous operations remove the power
source to the system. RUN must not be relied upon to ensure that
the machine remains stationary . The motor FIELD output remains
energised with RUN open, please beware of overheating the motor when
stopped (does not apply to permanent magnet motors).
10 COM Common. 0 V (zero).
11 TACH When using Tach feedback, the tach feedback polarity must be negative with
respect to COMMON, Terminal 10. 1.5 MΩ input impedance. Full scale voltage range
= 40 V to 200 V, adjustable using the Spd x 2 switch and Max spd preset. Refer to "4
Options" on page 15.
12 RLOP Relay driver output. +10.5 V active high. Flywheel diode to COM.
NOTE: The output is current limited.
The output voltage is therefore load
dependent. When in current limit, the
output voltage achieved depends upon
the resistance of the load multiplied
by the available current limit at that
voltage. Refer to the table opposite for
current limit values and the associated
output voltages.
When driving relays, ensure the coil
operating range is suitable,
e. g. a 12 V relay with a coil operating
range of 80-110% will energise at
voltages of 9.6 V and above
(80% of 12 V). Hence, it must have
coil resistance greater than 633 Ω
for the output to be capable of
achieving the desired voltage.
A suitable UL approved relay is
Hongfa type HF41F/9
(coil voltage 9 V).
relay
voltage
(V)
typical RLOP
current
(mA)
typical coil
resistance
(Ω)
8.0 30 267
8.5 25 340
9.0 20 450
9.5 15 633
10.0 10 1000
10.5 1 >10K
LM324
+12 V
Output
terminal
Flywheel diode,
47K resistor,
and 47nF
capacitor
10.5 V
LM324
-
+
LM324
-
+
+12 V
+12 V
invert
T13
RLIP
T12
RLOP
Level preset range
0.5% to 105%
Flywheel diode,
47K resistor and
47 nF capacitor
50K
pull-down
This diode allows
relay outputs to be
OR’d together if
desired.