Milton Roy MacRoy, Инструкция по установке, эксплуатации и обслуживанию

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8
ure 11) selects the feedback output signal. Use of
the output signal is optional.
2.6.3.1 Feedback Output Signal 4-20 MA
NOTE
Do not connect the 4-20 mA output to a cir-
cuit with greater than a 500 ohm load
Set SW3 per Table 11 for a 4-20 mA feedback sig-
nal.
2.6.3.2 Feedback Output Signal 1-5 VDC
NOTE
Do no t conn ect the 1- 5 VDC outpu t to a
circuit h aving le ss than 2 50 o hms im ped-
ance.
Set SW3 per Table 11 for a 1-5 VDC feedback sig-
nal.
2.6.4 Installation of Primary Power Wiring
Primary power wirin g to operate th e ECC shou ld
be ro uted via a n on /off switch (th ere are no
switches on the ECC) or a panel breaker switch.
1. Maintain integrity of safety approv als us ing
only 300 volt, 105° C (UL 1213 or equiv.) rated
insulation.
IMPROPER CONNECTION OF THE
POWER LINE OR INCORR ECT SUPPLY
VOLTAGE CAN CAUSE DAMAGE TO
THE ECC. DISCONNEC T ALL POWER
BEFORE CONNECTING WIRES.
2. Feed three (12 to 16 A WG) prim ary powe r
wires through a ppropriately r ated con duit
bushing inserted into th e other conduit hole in
the base of th e ECC. Co nnect ground wire to
screw at ECC end.
3. Carefully pull tw o-position connector J4 from
circuit bo ard ( Figure 4). Con nect HI- blk an d
LO-wht wir es to ter minal blo ck con nector J4
(Figure 12). Reconnect connector J4 to circuit
board.
VOLTAGE SELECTOR SWITCH SW1
LOCATED ON TOP OF THE CIRCUIT
BOARD MUST BE SET TO THE VOLT-
AGE LISTED ON YOUR DATA PLATE
(FIGURE 1 OR 2), OR DAMAGE TO
MOTOR WILL RESULT.
Voltage s elector switch SW1 ( Figure 11), locate d
on top of the circuit board, is a two-position switch
used to configure the ECC for an input of 115 VAC
or 230 VAC. Insure SW1 is set to the voltage listed
on your data plate (Figure 1 or 2), attached to th e
enclosure. The factory sets SW1 for the model
ordered and should not be changed. If the oper-
ating voltage must be changed, contact the Milton
Roy factory at (215) 441-0800 for conversion parts
and instructions.
Table 12. SW1 Voltage Selector Switch Setting
2.7 CIRCUIT B OARD RETROFIT KIT INST AL-
LATION (Table 9)
2.7.1 Remove Old Circuit Board
1. Unscrew ECC cover by turning it counterclock-
wise (as viewed from th e top) . Lift cover
straight off and away.
2. If the bo ard yo u ar e replacing has terminal
blocks fo r pr imary and signal wire s, loose n
screws and remove wires. Label wires before
removal to facilitate re-installation.
3. If the old board has plug-in connectors, simply
unplug all connectors from circuit board.
Table 11. SW3 DIP Switch Settings
OTPUT SWITCH POSITION
1 2 3 4 5
Output Signal of 4-20 mA ON ON OFF OFF OFF
Output Signal of 1-5 VDC OFF OFF ON ON ON
For Input Power of 115VAC 50/60Hz
Note: The motor and motor run capacitor must be
rated for 115VAC operation, or damage will result.
115
For Input Power of 230VAC 50/60Hz
Note: The motor and motor run capacitor must be
rated for 230VAC operation, or damage will result.
230
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