ProFire PF2200-SB Installation Manual page 38

Solenoids are not turning on,
or turning on then over time
turn off
Digital input will not energize
DOC-001041 / v1.0
1. Ensure the solenoid is wired correctly and to the
appropriate terminals.
To ensure proper solenoid wiring, a multi-meter in
•
OHM mode can be used to measure the resistance
between the + and – terminal of the associated output.
Note: this measurement should be done with the BMS
card powered off.
If properly wired, the multi-meter should read a
•
resistance of the solenoid coil plus the run length (i.e. if
the multimeter reads open, there is likely a problem
with wiring).
1. Ensure the PWM setting is correct for the appropriate
solenoid.
If using a peak-and-hold solenoid, the appropriate
•
PWM setting can be found in the solenoid data sheet.
Typically add a margin of 5-10% to allow for
temperature variance
If using a non-peak-and-hold solenoid, ensure the
•
PWM setting is set to 100%
1. Ensure the input is properly wired. See section 4 for
Interfacing / Wiring configurations.
2. In the case of a dry contact, ensure the PWR terminal is
connected and is sourcing the correct voltage.
3. Ensure adequate amount of wetting current is being
applied to through contact.
Run a current meter in series with the digital input
•
switch and verify the energized state meets the
requirements outlined in the "Electrical and Mechanical
Ratings" section of this document.
If there is not adequate wetting current, the digital
•
input either has too high of an impedance or the wiring
has been compromised.
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