POWER SEQUENCING AND CONTROL (PZA)
Three-sequence power distribution system
20 amp with remote control capability
This is a great product for "front-end" applications or anywhere AC power protection is needed for multiple low-current pieces of equipment that need to be controlled and sequenced.
The CQ-1520 is a single-space rack-mount device that features 7 AC power outlets on the rear of the chassis with a combined rating of 20 amps . An output is disconnected. The remaining 6 outputs are grouped into 3 Power Pods with two outputs each. Each Power Pod is an individual sequence event. All outlets have surge and spike protection.
Because the CQ-1520 has a self-contained sequencing circuit, it can be either a master or slave in a power sequencing system. An eight-wire RJ-45 cable or a six-wire RJ-12 cable can be connected to the signal input and/or signal output connectors of this unit to link its operations with other CQ or control devices.
The 20 amp capacity of this unit requires that it be assembled with a 12 gauge power cord and a NEMA 5/20P plug on the end of the power cord. This cord can only be inserted into a 20 amp AC receptacle.
Surge protection and LED function
The CQ-1520 features triple-stage, replaceable, fast-acting AC surge protection on line and neutral without ground line contamination. This protection is designed to be durable and is expected to last for many years in a normal power line environment.
A flashing blue/red processor LED indicates continued operation of the circuit and logic that controls and drives the sequencer while being protected from power line surges between line and neutral. If the surge protection fails due to excessive exposure to surges or an extreme event on the power line, the processor LED on the front of the CQ will flash red. The individual blue "Pod" LEDs are linked to the output of each of the sequencer's relays. Each LED lights up when its relay is blocked.
Processor LED Function: Flashing Blue/Red = Sequencer and surge protection OK. Flashing Red = Sequencer OK, surge protection fault. Solid Blue or Off = Sequencer fault
Sequence synchronization adjustment
For CQ series products, the standard delay time between up and down sequence events is 2 seconds. This can be adjusted on the CQ 1520 by changing the position of two DIP switches located on the main control circuit board. Time options are 2 seconds (standard), 10 seconds, 20 seconds, and 30 seconds.