Gemini Super SCR Series Instructions

SUPER SCR INSTRUCTIONS
INTRODUCTION
™
The SUPER SCR series are designed for operation with 1/3 to 1 1/2 HP DC brush-type permanent magnet motors. The
compact models are available in an economic chassis mount. Models are available for 115 and 230VAC input. Models 12M4-
00109 and 12M4-00110 have adjustable electronic current limiting that limits the maximum level of output current.
Specifications:
Speed Range: 100:1
Overload Capacity: 150% of rated current for 60 seconds
Maximum Speed Adjustment: 50-110% of rated speed
Model
12M4-00109
12M4-00110
GENERAL
These instructions provide basic information for installation and adjustment. Please contact Gemini Controls LLC if further
information is necessary. It is possible to damage the drive through misuse or misapplication. Please read this material
thoroughly before proceeding with installation.
Unpack the equipment noting any shortages or damaged equipment. Immediately notify the carrier of any damage. Store in
clean, dry location if the product is not used immediately. The relative humidity should not exceed 95%, non-condensing.
INSTALLATION
Carefully mount the chassis allowing clearances for access, air flow and conduit entry. The environment should be free of
vibration and contaminants. The operating temperature range for the Gemini drive is 32 to 104 degrees Fahrenheit (0-40C).
Since the drive produces heat, utilize a source of cooling, such as a fan, when the ambient temperature approaches 104 degrees.
WARNING: Do not drill or file the enclosure or chassis when the controller is installed, as metal
particles can cause shorts and damage.
WIRING
1. Input Wiring - Connect the AC line to terminals "L1" and "L2" (note wiring diagram).
or circuit breaker rated higher than 15 amps, fuse the "L1" connection path with a 15 amp fuse. If required, the chassis may be
grounded at one of the unused holes. Input wire size must be in compliance with the National Electrical Code and all local
codes and restrictions.
: Do not connect line power to the motor terminal connections.
WARNING
2. Output Wiring - Connect the negative and positive of the motor to the "A-" and "A+" terminals of the drive. Do not operate
the drive without connection to the motor.
3. Control Wiring - Connect a 10K, 1/4 watt speed potentiometer to the "L", "W", and "H" terminals, with the wiper connected
to the "W" terminal. If shielded wire is used, ground the shield at the potentiometer. Never connect the shield at both ends. Do
not run control wiring in conduit with high voltage (120V or greater) wiring.
Models 12M04-00109 and 12M04-00110
Input Voltage Output V. Range
115 0-90VDC
230 0-180
HP Cont. Output Amps
3/4 7.5
1 1/2 7.5
If the circuit is protected with a fuse