In Case Of Difficulty - DART Controls 250G CONTROL Serie Manual Del Usuario

(continued)
-56H2 option
Isolated Voltage Input
Min Max Accel
(red)
Inhibit
P2
Pin
(white)
(orange)
P1 -1 -1 -2 -3 -4 -5 -6 -7
NOTE:
SOME FACTORY
WIRING IS NOT
motor
SHOWN FOR CLARITY
CUSTOMER SUPPLIED WIRING
If a newly installed control will not operate, it is possible that a terminal or connection is loose. Check to make sure that all con-
nections are secure and correct. If control still doesn't operate, refer to the following chart.
PROBLEM
Motor doesn't operate
Armature output voltage
cannot be adjusted, output
is a constant DC level
Motor stalls, or runs very
slowly with speedpot
turned fully CW
Motor hunts
Repeated fuse blowing
Motor runs but will not
stop
If control still will not operate, consult your Dart Distributor or Representative.
IR Cur.
Comp Lim.
(black)
(brown)
(white)
(yellow)
-8 -9 -10 -11
ac input
INPUT IMPEDANCE:
1.2MΩ on high scale
150KΩ on low scale

IN CASE OF DIFFICULTY

POSSIBLE CAUSE(S)
- blown fuse
- incorrect or no power source
- speedpot set at zero
- worn motor brushes
- no motor or load connected
- speedpot low connection open
- low voltage
- overload condition
- worn motor brushes
- max speed set incorrectly
- too much IR Comp.
- motor is in current limit
- motor not pulling enough current
- max trimpot set too high
- motor speed is above rated speed
- low voltage
- overload condition
- worn motor brushes
- defective motor bearings
- defective electrical component
- incorrect wiring (enclosed version)
- defective wiring
- defective component
3PDT Switch
(yellow)
(brown)
Speedpot
(red)
(white)
(white)
(black)
P2
Vin or 4-20mA
CONNECTOR
RANGE 4-20 Vin
JUMPER JP2
(blue)
CONNECTOR* -1 -2 -3
P4
GAIN
TRIMPOT
BALANCE
TRIMPOT
P3
P5
-56H2 OPTION BOARD
(INSIDE OF COVER)
common signal
CUSTOMER
SUPPLIED
CORRECTIVE ACTION(S)
replace fuse
install proper service
adjust speedpot CW to start
replace motor brushes
check that motor or load is connected
to armature terminals
check that speedpot low wire is connected
check - should be above 108V
reduce load
replace motor brushes
see ADJUSTMENT PROCEDURE
see ADJUSTMENT PROCEDURE
see ADJUSTMENT PROCEDURE
current must be greater than 150 mA D.C.
see ADJUSTMENT PROCEDURE
reduce speed
check - should be above 108V
reduce load
replace
replace
call Dart Distributor or Representative
check TERMINAL STRIP WIRING for correct
wiring instructions (note AC line
connection in particular)
check wiring
call Dart Distributor or Representative
13
Factory Installed Only
Enclosed Version
Note: Balance Trimpot factory set
- Do NOT re-adjust.
* Jumper clip is used to select input
voltage range. When installed from
P4-1 to P4-2, the range is 0-25VDC
through 0-250VDC; when installed
from P4-2 to P4-3, range is 0-5VDC
(orange)
through 0-25VDC.
See -55H2 and -56H2 Adjustment
Procedures.
WIRING