8 • XEV22D I&O Manual
026-1206 Rev 3 13-DEC-2012
6. Note the mA terminal on the meter. It should be la-
beled 400 mA or 300 mA.
7. Power up the XEV22D controller.
8. Cycle the valve and verify the meter AC amp read-
ing is less than 0.3A.
9. If step
8
reading was less than 0.3A, power down
the XEV22D and move the meter red lead from the
meter 10A terminal to the meter 400 mA or 300mA
terminal.
10. If the meter dial selector has an AC mA selection
(~mA), change to the AC mA selection.
11. Power up the XEV22D controller.
12. Cycle the valve and record the maximum constant
meter AC mA reading.
13. The mA reading should be within 20% of the Phase
current CPP setting.
14. The valve voltage can be calculated by multiplying
the mA reading by the valve coil resistance. For ex-
ample: 102 mA x 100 ohm valve coil = 10.2V.
150mA x 75 ohm valve coil = 11.25V.
The 2nd valve coil current/voltage can be tested by
repeating the above procedure on the Sporlan valve
Green wire and XEV22D controller.
The in-line AC mA meter is also compatible with
the constant voltage stepper valve drivers used in the
MultiFlex ESR, CC100, and CCB.
7
Absolute
Maximum Power
The XEV22D controller is capable of driving a
wide range of stepper valves; listed in
Table 7-1
are
the maximum values of current that the actuator can
supply to the stepper wiring. Use the TF20D trans-
former.
CAUTION: 0.3A is 300mA; if the AC amp
reading in step 8 was above your meters mA
terminal label: STOP and check. DO NOT
proceed or your meter will be damaged.
NOTE: The electrical power absorption of the
valve can be unrelated to refrigeration power
that the valve has. Before using the actuator,
read the technical manual of the valve sup-
plied by the manufacturer and check the maximum cur-
rent used to drive the valve to verify that they are lower
than indicated below in Table 7-1.
VALVE
TYPE
Bipolar Valves
(4 Wires)
Maximum Current
0.9A
Uni-polar Valves
(5 to 6 Wires)
Maximum Current
0.33A
Table 7-1 - Maximum Allowable Valve Current