-55H2 and -56H2 options
Isolated Voltage Input
-55H2 OPTION (CHASSIS)
This option card allows for the use of either a grounded or
non-grounded remote DC signal such as 0 to 5 through 0
to 250Vdc, 4-20mA current, or a remote speed pot. The DC
input signal type can be selected for voltage (Vin) or current
(4-20mA) via the JP2 jumper clip. There is a Hi/Lo range
jumper (P4) selection that should be set to the (Lo) setting
when using a 4-20mA signal or voltage ranges of 0-5 through
0-25Vdc. When using voltage ranges of 0-25 through 0-250
this jumper must be set to (Hi). The GAIN trimpot is used to
set full linear output in reference to the input signal range. The
output of this remote signal isolation board is a linear signal
that is proportional to the remote input signal being supplied.
(FOR SHUNT WOUND MOTOR, SEE PAGE 4 OF MANUAL
FOR FIELD CONNECTIONS).
CAUTION: DO NOT use TRIMPOT ADJUSTMENT CHART. Set
pots using directions in following SET-UP PROCEDURE.
MIN
MAX
ACCEL
RANGE
JUMPER
CONNECTOR
TRIMPOT
P3
-1
-2
-3
P1
JU2
ORANGE
-ARM
+ARM
CUSTOMER
CUSTOMER
COMMON
SIGNAL
ADJUSTMENT PROCEDURE FOR -55H2 & -56H2 OPTIONS
With NO power at the control, connect a DC voltmeter (meter must not be grounded) to control outputs as follows: Meter
1.
COMMON to the -ARM terminal; Meter POSITIVE to the +ARM terminal. Select correct meter range (0-90V or 0-180V).
2.
Preset GAIN trimpot (option board) fully CCW, place range jumper clip in proper position.
3.
Preset control as follows: MIN and IR COMP. fully CCW, MAX at 50%.
4.
Apply desired AC voltage to control and option board.
5.
With 0 volts into option board, adjust MIN trimpot on control to eliminate deadband. To do this, increase MIN fully CW,
then adjust CCW until meter reads 0 volts.
6.
Apply maximum input voltage to option board input.
7.
Adjust GAIN until no further change in voltage output occurs and turn CCW until a 5V drop occurs, then set control MAX
to 90VDC (180VDC for 240V input).
8.
For Closed Loop systems the IR COMP. should remain fully CCW. For Open Loop systems, set IR as per set-up procedure.
Some interaction between trimpots may occur. Recheck the Min trimpot setting and repeat steps 5 through 7 as needed.
9.
IR COMP
CUR LIM
Vin or 4-20mA
CONNECTOR
GAIN
P2
-1
4-20
-2
-3
Vin
JU4
P4
JP2
AC1
AC2
Factory or Field Installed
-56H2 OPTION (CHASSIS)
The -56H2 option is identical to the -55H2 option with the
added ability to have remote Auto/Manual switching.
See -55H2 for more further detail.
(FOR SHUNT WOUND MOTOR, SEE PAGE 4 OF MANUAL
FOR FIELD CONNECTIONS).
CAUTION: DO NOT use TRIMPOT ADJUSTMENT CHART.
Set pots using directions in the previous SET-UP
PROCEDURE.
MIN
P1
JU2
ORANGE
yellow
orange
AUTO
1
2
3
MANUAL
white
INPUT IMPEDANCE:
1.2M ohm on high scale
150K ohm on low scale
12
Chassis Version
MAX
ACCEL
IR COMP
CUR LIM
Vin or 4-20mA
RANGE
CONNECTOR
JUMPER
GAIN
CONNECTOR
TRIMPOT
P5
P3
P2
-1
4-20
-2
-3
Vin
JU4
-1
-2
-3
P4
JP2
-ARM
+ARM
AC1
AC2
CUSTOMER
CUSTOMER
COMMON
SIGNAL
1
6 - NO CONNECTION
CONNECTS
UNDER WIPER
SCREW P1-2
2
5 - NO CONNECTION
3
4 - NO CONNECTION
1/2 OF DPDT
DPDT CENTER-OFF SWITCH
SWITCH
TERMINAL DESIGNATION
(BACKSIDE VIEW)