DART Controls 13DVA Series Instruction Manual page 61

TACHOMETER FEEDBACK
+
6 VDC at BASE SPEED (3 VDC at
TACHOMETER
1000 RPM for 1800 RPM MOTOR)
-
INHIBIT (USED INDEPENDENTLY)
LO
WIPER
SPEEDPOT
HI
NOTE: Permits starting and stopping of motor without breaking AC lines. In the event of SCR failure or false
triggering, the Inhibit circuit will not stop motor.
Always use a shielded wire when connecting to the inhibit terminal. The shield should be connected
to -Armature or Common of the control.
-5 option
Isolated 4-20 ma.Signal Follower
4 to 20mA ........... -5
Input impedance: 500 ohms or less
DO NOT USE TRIMPOT CHART TO
ADJUST MIN AND MAX TRIMPOTS
ON MAIN BOARD. IF ADJUSTMENT
IS NEEDED THEN REFER TO THE
SETUP PROCEDURE BELOW.
This option replaces the speedpot with a 4-20 ma. signal to control speed. The current signal input can be either grounded or
ungrounded. The board sets on spacers screwed to terminals P1-1, P1-2, and P1-3 on the main board using long screws. The
current source connects to the + and - two position terminal strip (P16-1 and -2) on the -5 option board.
The Linearity trimpot on the -5 option board is set at the factory for proper linearity, however this trimpot may need to
be re-set after tuning the controls Max and Min trimpot settings for your specific application. If needed then refer to the setup
procedure below.
P2 INHIBIT
P1-4 -ARM
NOTE: NEED 1% OR LESS - TACH OUTPUT RIPPLE
INHIBIT
P1
(P2)
-1
-2
SPST
-3
OPTION DESCRIPTION
LINEARITY ADJUSTMENT
CURRENT
SOURCE
P16
TACHOMETER FOLLOWER
+
TACHOMETER 12 VDC at FULL SPEED
-
INHIBIT (USED WITH SPEEDPOT)
SPEEDPOT
P1
LO
-1
WIPER
-2
HI
-3
Field or Factory Installed
Available on Chassis Only*
follow a 4mA to 20mA
-1 -2
250/500
- - - -4 -5
(250G TERMINAL STRIP)
8
P1-2 POT WIPER
P1-1 POT LO
INHIBIT
(P2)
SPDT
Permits the control to
grounded or
ungrounded current
-6 -7 -8 -9 -10 -11 P1