Speed Controls

Deluxe ECM Speed Controller

Deluxe ECM
Description
The Price Deluxe ECM speed controller works with a high efficiency ECM motor. This low voltage (24VAC) speed control allows full manual (push button adjust) or BAS (2-10VDC signal) control of the ECM motor.

Features
  • Dual outputs for controlling 2 ECM motors (Note: Both motors will receive the same signal.)
  • Red three-digit digital display for reading out: a) Speed 0-100% b) Motor RPM (for motor number 1 only) c) BAS input voltage (Digital readout of incoming BAS voltage signal.)
  • Building Automation System input (2-10VDC) for remote control

LED Digital Display
The Digital Display shows the user several modes of operation. This allows for easier and more precise field adjustment and troubleshooting.
By pressing both the UP and DOWN push buttons at the same time the user can cycle between the following modes:
1) Speed Adjustment – is easier and more precise with the digital display and push buttons than with a standard dial.
2) Motor RPM – displays the real time motor speed to aid in troubleshooting.
3) BAS input voltage – displays the input voltage signal from the building automation system (BAS). Note: Any BAS voltage signal above 1 VDC overrides local speed control.

Important Information regarding the ECM motor
Do not switch 120/208/240/277 VAC power to turn ECM motor on and off. Instead control the 24VAC signal or BAS signal to turn the ECM motor on and off. The ECM motor has large capacitors that charge quickly on mains power up. Switching on several motors frequently could reduce building power quality and is not recommended.

 
Display Mode Range
Spd Manual Speed Adjust Mode 0-100 %
rPn Shows current RPM of ECM motor #1 0-1350 RPM
bAs BAS Mode – Voltage Signal 2-10 VDC

Power: 24 VAC ±10% @ 50/60Hz (2VA)
Operating Conditions: 32 °F to 122 °F [0 °C to 50 °C] 0% – 95% R.H. non-condensing
Storage Conditions: -22 °F to 122 °F [-30 °C to 50 °C] 0% – 95% R.H. non-condensing
Processor: 8-bit enhanced flash microcontroller
Inputs: 1 Analog and 3 digital inputs
Outputs: 2 Digital (GO signal to ECM and Vspd PWM signal @ 80.0 Hz)
Connections: ¼ in. Spade Terminals – Recommend 18-22AWG copper wire
Dimensions: 2.8 in. by 3.8 in. [71 mm by 96 mm] (includes mounting plate)
Shipping Weight: 0.220 lbs, 100 grams
 
Low Voltage Wiring
The Price Deluxe ECM speed controller works with a high efficiency ECM motor.
This low voltage (24VAC) speed control allows full manual (push button adjust) or BAS (2-10VDC signal) control of the ECM motor.
*Note: 24VAC COM, BAS COM, ANALOG OUTPUT COM are all connected together. ***Please observe 24 VAC polarity.***
Analog RPM Output Signal
A two wire connection supplies an analog (0- 10VDC) signal that is directly proportional. The range is 0 – 1500 RPM and it will output a proportional 0 – 10 VDC signal. If a dual blower system is used only the RPM from motor 1 can be read. Note: The minimum speed of the ECM motor is approximately 250 RPM. Formula for outputs below (tolerance ± 10%):
  • VDC output = (RPM / 150)
  • RPM = (VDC * 150)
  • Output signal: 0 – 10 VDC @ 20k ohm minimum input impedance and is short circuit protected. (Output impedance is 511 ohm to protect against incorrect wiring)
  • Black wire – ANALOG RPM OUTPUT COM
  • White wire – ANALOG RPM OUTPUT + (SIGNAL)
 
BAS Input Signal

The BAS input signal overrides the local set-point using a remote 0 – 10 VDC signal. If the BAS signal drops below 1 VDC local control (via the push buttons) is restored.

BAS Voltage Response Notes
0 – 1 VDC Local Control mode using
push buttons
Local set-point can be adjusted from
0 – 100 (%)
1 – 2 VDC Motor OFF Recommend sending a 1.5 VDC signal
to command motor off
2 – 9 VDC Modulating control 2 – 9 VDC modulates motor from
0-100%
9 – 10 VDC Maximum Speed Motor is running at maximum speed
(100%)
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