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PROCESS CONTROL SYSTEMS
A5000GEC ZERO SPEED SWITCH
The MAXIGARD™ A5000GEC is a zero speed switch designed to monitor the starting
and stopping of critical rotating shafts. Maxigard™ products are manufactured to monitor
material handling and process equipment in harsh industrial applications.
The A5000GEC zero speed switch has a non-contact sensor and is supplied with
a magnetic target. The sensor signal is not impaired by the buildup of dust or any
other foreign material on the magnetic target or sensor. This switch is designed to
detect zero speed (speeds less than 1 RPM) of the monitored shaft.
The A5000GEC has one set of relay contacts. The relay is energized as soon as one
magnet passes in front of the sensor and remains energized until the monitored shaft
speed drops below 1 RPM for more than approximately 3.8 seconds. The relay
re-energizes as soon as the monitored shaft starts to rotate and one magnet passes in
front of the sensor. The switch is designed fail safe and in the event of a power failure
or loss of signal the relay will de-energize.
THE A5000GEC ZERO SPEED SWITCH INCLUDES:
4" MAGNETIC DISC (OTHER OPTIONAL TARGETS AVAILABLE)
SENSOR SELF CONTAINED IN CAST ALUMINUM HOUSING WITH CIRCUIT & RELAY
MOUNTING HARDWARE
TM
PROCESS CONTROL SYSTEMS, INC.
327 LAKE HAZELTINE DRIVE, CHASKA, MN 55318
100-240 VAC
Description
Principle of Operation
Components
CALL TOLL FREE
www.maxigard.com
E-mail: techsupport@maxigard.com
Bulletin No: A5000GEC
Release Date: May 2017
TM
800-328-0738
Page 1
952-361-3026
(Fax) 952-368-4129
800-328-0738
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Summary of Contents for PCS MAXIGARD Altra-gap A5000GEC
- Page 1 Page 1 Bulletin No: A5000GEC Release Date: May 2017 952-361-3026 PROCESS CONTROL SYSTEMS, INC. (Fax) 952-368-4129 PROCESS CONTROL SYSTEMS 327 LAKE HAZELTINE DRIVE, CHASKA, MN 55318 800-328-0738 A5000GEC ZERO SPEED SWITCH 100-240 VAC Description The MAXIGARD™ A5000GEC is a zero speed switch designed to monitor the starting and stopping of critical rotating shafts.
- Page 2 Page 2 Bulletin No: A5000GEC Release Date: May 2017 Magnetic Disc The end of the shaft to be monitored should be flat to prevent excessive disc wobble. Center drill and tap the shaft end. (Suggested #21 drill and #10-32NF tap). Bolt the magnetic disc to the end of the shaft.
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Page 3: Dimensional Data
Page 3 Bulletin No: A5000GEC Release Date: May 2017 SENSING METHOD Optional Magnetic Collar Standard Magnetic Disc 1/8" TO 3/4" GAP 1/8" TO 3/4" GAP MAGNET 1 5/8" MAGNET SHAFT Figure 1A Figure 1B DIMENSIONAL DATA A5000GEC Magnetic Disc 3 11/16" 4 9/16"... - Page 4 Page 4 Bulletin No: A5000GEC Release Date: May 2017 A5000GEC Zero Speed Switch Housing The A5000GEC zero speed switch housing is certified for Class I, Div. 1 & 2, Group D. Class II, Div. 1 & 2, Group E, F, & G. Class III. (see figure 2, page 3) Wiring the A5000GEC Zero Speed Switch Power connections and relay connections to the A5000GEC zero speed switch...
- Page 5 Page 5 Bulletin No: A5000GEC Release Date: May 2017 TYPICAL MOTOR STARTER WIRING A5000GEC 100-240 VAC 120VAC WHITE GREEN START STOP OL’s YELLOW N.O. BROWN N.O. AUX N.C. ORANGE Figure 4 When 100-240 VAC power is applied to L1 and L2 the zero speed switch is powered on.
- Page 6 Page Page 6 Bulletin No: A5000GEC Bulletin No: A5000GEC Release Date: May 2017 Release Date: TYPICAL PLC WIRING A5000GEC 100-240 VAC WHITE GREEN I:001/01 YELLOW N.O. BROWN I:001/02 I:001/03 N.C. ORANGE I:001/0 AC Power PLC Input Module Figure 5 When 100-240 VAC power is applied to L1 and L2 the zero speed switch is powered on.
- Page 7 Page 7 Bulletin No: A5000GEC Release Date: May 2017 Testing Confirm proper mounting and electrical connections as described in sections 3 and 5. Remove the back cover of the switch housing and locate the RED and GREEN LED's on the circuit board. A5000GEC LED LOCATION The RED LED flashes every time a magnet passes in front of the sensor.
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Page 8: Limited Warranty
Page 8 Bulletin No: A5000GEC Release Date: May 2017 Spare Parts List Part No. Description 1213GEC A5000GEC Without Disc and Bracket 1217 Mounting Bracket 1136 Magnetic Disc 4”/ 16 Magnets 1378 Magnetic Disc 8”/ 32 Magnets 1705 Magnetic Disc 8"/ 48 Magnets LIMITED WARRANTY Process Control Systems, Inc.